Birds on Bulldozer - Reshaping the Ecological Structure of Paya Lebar Air Base

BIRDS ON BULLDOZER RE-SHAPING THE ECOLOGICAL STRUCTURE OF PAYA LEBAR AIR BASE

NUS COLLEGE OF DESIGN AND ENGINEERING | DEPARTMENT OF ARCHITECTURE LA4702 MLA STUDIO: CITY, 10 JANUARY - 1 MAY 2022 | DONG LIWEI | HU DIE | KWAN YIN MAN JANINA | JIANG YULI | JIN ZHUOYIN | LIN LAN | LIU KANGSHENG | LIU ZIYUE | NUR SABRINA BINTE SHAFARI | SHEN YUNNAN | WANG YU | XING ZHIYAN | YE HAN | ZHANG WENTING | ZHANG YUER | CAO NAICHUN | CHAI XIN YI | CHANG WANRUO | CYNTHIA WEE SU YI | JIANG RUOMIN | MIRWANKAR ANCHITA NITIN | REN JUNYAO | SHI YILAN | WANG LIANGYU | XU RUOZHU | ZHANG YUXI | ZHAO MINGYU | ZHOU SICONG TUTOR: HWANG YUN HYE, GUO LEHANA

As a studio product which is not censored, this book may contain mistakes or deficiencies.

Proposed ideas may not represent the positions of NUS.

Published by Department of Architecture School of Design and Environment National University of Singapore 4 Architecture Drive Singapore 117566 Tel: +65 65163452 Fax: +65 67793078 Copyright © 2022 Hwang Yun Hye and Guo Lehana (ed.)

ISBN: 978-981-18-4626-7

BIRDS ON BULLDOZER RE-SHAPING THE ECOLOGICAL STRUCTURE OF PAYA LEBAR AIR BASE

NUS COLLEGE OF DESIGN AND ENGINEERING | DEPARTMENT OF ARCHITECTURE LA4702 MLA STUDIO: CITY, 10 JANUARY - 1 MAY 2022 | DONG LIWEI | HU DIE | KWAN YIN MAN JANINA | JIANG YULI | JIN ZHUOYIN | LIN LAN | LIU KANGSHENG | LIU ZIYUE | NUR SABRINA BINTE SHAFARI | SHEN YUNNAN | WANG YU | XING ZHIYAN | YE HAN | ZHANG WENTING | ZHANG YUER | CAO NAICHUN | CHAI XIN YI | CHANG WANRUO | CYNTHIA WEE SU YI | JIANG RUOMIN | MIRWANKAR ANCHITA NITIN | REN JUNYAO | SHI YILAN | WANG LIANGYU | XU RUOZHU | ZHANG YUXI | ZHAO MINGYU | ZHOU SICONG TUTOR: HWANG YUN HYE, GUO LEHANA

LANDSCAPE FIRST APPROACH FOR PLAB Guo Lehana

BIRDS ON BULLDOZER studio focuses on the questions of the role of landscape in addressing global challenges. Through landscape-driven scenario-planning and visualizations, the studio aimed to articulate new trajectories for the landscape architecture discipline to guide sustainable city planning.

IN THE STUDIO described in this book, 23 graduate students in the Master of Landscape Architecture programme from the National University of Singapore collaborated to develop landscape planning strategies for the Paya Lebar Air Base future town. The cohort is divided into 2 studios and each studio is tasked to produce 1 overall concept masterplan whilst also working in teams of 2-3 on a given topic. Work included preliminary research into the given topic, site context, field trips to identify opportunities and challenges within the assigned topic, group masterplanning negotiation, and design activities visualizing planning concepts and systems.

MANY THANKS to the following collaborators: NUS PLAB Research team for allowing us to tap on their research and site data required for this studio; Dr Lum Shawn (Nature Society (Singapore) and Dr. Anuj Jain (BirdLife International) who guided the students on their field trip and provided fundamental understanding of the ecology of PLAB; Mr Tan See Nin (URA), Ms Soh Yun Yee (NUS), Ms Ng Abby (NParks), Mr Choo Jeverss (Mao Sheng Construction), and Ms Lim Sheau Miin (DPA) for providing the students insights into various urban planning, development and construction topics related to this studio; Mr Lee Alfred (STX) and Mr Koh Jiann Bin (Coherean Pte Ltd) for providing technical and practical advice to the students; Dr Heng Chye Kiang (NUS), Mr Fung John Chye (NUS), Dr Ong Ghim Ping Raymond, Dr Tan Puay Yok (NUS), Dr Tang Dorothy (NUS), Dr Lin Ervine (NUS), Ms Liu Huei Lyn (PUB), Mr Wright Jason (NParks), Mr Therry Jelle (Ramboll), and Mr Lambreghts Stefaan (Grant Associates) who participated as guest critics and offered valuable advice.

THIS BOOK is a compilation of works from the studio. The first portion of the book documents the sequential studio process of the 2 studios. Thereafter, the 2 overall concept masterplan and the corresponding topics are documented.

Studio 1’s concept masterplan is titled “Happy & Resilient PLAB” and it comprises of strategies with the following headings: LAND AND SOIL MANAGEMENT, WAT E R M A N A G E M E N T, R E C Y C L E D C O N S T R U C T I O N M AT E R I A L , WATERSHED PROTECTION WITH AQUATIC ANIMALS, LANDSCAPE CONNECTIVTY WITH BIRDS. Studio 2’s concept masterplan is titled “Regenerative PLAB” and it comprises of strategies with the following headings: CO-BREATHING WITH SOIL, SEED DISPERSAL AND ANIMALS, WILDLILFE ECONOMIES, NATURE AS A CARBON BANK, PRODUCTIVE LANDSCAPE BUSINESSES. The book concludes with reflections by the students. We hope the book will launch new discussion of the role of landscape architecture in sustainable city planning.

STUDIO INTRODUCTION P10-13

STUDIO CHRONOLOGY P14-21

STUDIO 1 : HAPPY & RESILIENT PLAB P22-241

STUDIO 2 : REGENERATIVE PLAB P242-447

REFLECTIONS P448-459

STUDIO INTRODUCTION Hwang Yunhye and Guo Lehana CLIMATE & BIODIVERSITY EMERGENCY We are in a climate and biodiversity crisis. More than one-fifth of all humans live in regions that have already seen warming greater than 1 degree Celsius since the pre-industrial period, with an increase of 0.2 degrees per decade . Scientists predict that on our current trajectory of habitat loss and global warming, between one third and one half of all species will face extinction by the end of this century. Twin crises will upend ecosystems and destabilize human civilization.

CITIES’ CONTRIBUTION AND OPPORTUNITIES Urbanization is a major anthropogenic driver of biodiversity loss. Cities’ massive resource consumption and waste production without a closed loop system continues to strain ecosystems globally. . However, the energy and material flows of a city can be designed to be more attentive to local and ecological systems and their limits .

Designed with care, urban spaces can also function as heterogeneous habitats accommodating a range of plant and animal species . Cities therefore also present a unique opportunity to address global challenges.

ROLE OF LANDSCAPE ARCHITECTS Habitat loss and global warming require that landscape architects fundamentally change how we plan and design communities, landscapes, cities and regions . We are uniquely positioned to drive the creation of new habitats and manage the effects of fragmentation and environmental degradation through design. We ensure that developments are planned and designed with careful regard to both local ecological systems and the spatial character of the landscape. Through landscape-driven scenario-planning and visualizations, the studio will articulate new trajectories for the landscape architecture discipline to guide sustainable city planning.

SCIENCE AND TECHNOLOGIES OF LANDSCAPE PLANNING Current knowledge in ecological and geographical sciences and advancements in landscape digitization can potentially provide the theoretical underpinning and advanced tools for landscape planning. However, disciplinary fragmentation makes it challenging to translate these advancements into actionable knowledge that can guide landscape planning and design.Better alignment and synthesis of different disciplinary perspectives and priorities is needed. The studio setting offers a space for synthetic research where students are able to gather experts’ inputs from relevant fields including environmental engineers, tropical ecologists, remote sensing and spatial analysts, and policy makers in conservation and development.

QUESTIONS Questions that this studio will tackle include; Where are the green and blue spaces that are imperative to future ecological desired function? What opportunities for ecological restoration exist? How can we leverage a city’s natural capital to strengthen our ecological, climate and socio-economic resilience? What are the development alternatives that can mitigate loss of nature and limit carbon footprint?

SITE With the relocation of PLAB from the 2030s onwards, a 800 ha of land including the airbase and its surrounding industrial developments, is earmarked for a new growth phase - to be transformed into a new town as a commercial hub . Many ideas on how the PLAB area could be redeveloped in the future have been proposed through a public competition with design studios and the URA .

10

Considered to be one of the largest forested areas outside nature reserves in Singapore, the site has matured from a fallowing land into a young secondary forest with most trees in unmanaged greenery reaching full heights since its former Kampong days. Though extensive in greenery, there is an inconsistency in canopy cover where certain areas are lushly overgrown with closed canopy while others are more barren due to degraded soil and clearance. Due to the variety and network of different habitats complementing and supporting one another, the biodiversity on site may have great potential to form a rich and complex whole.

PLAB is situated in the eastern catchment of Singapore; its waterways flow into multiple catchments - Serangoon and Bedok Reservoirs, or into the open sea. The topography hosts a wide range of levels, with terrain elevations varying from 0.0m to 50.0m. The surface rainwater flows along the uneven terrain, forming temporary streams and ponding areas during heavy rain events. It contains over 80ha of runway and 00hc of industrial buildings consisting of a large amount of asphalt and concrete that are recyclable; various types of soils from healthy soils with organic debris accumulating over several decades to inorganic soil at Tampines HDB stockpiles. Despite the dominant urban layout, the existing topography and many large trees that are naturally grown offer a unique opportunity to create new landscapes or can be recycled while minimising carbon footprint and transportation cost to the landfill site and regenerating the history of post-modern industrial landscapes.

STUDIO APPROACH Adopting urban ecological principles from several studies, the studio will envision PLAB district to possess a self-sustaining and healthy habitat, a physical environment that is interwoven with histories of infrastructure, buildings, and open spaces to enhance biodiversity conservation and maximize resource usage efficiency, and a district that is connected to the larger ecosystem. In doing so, it injects flexibility into the PLAB district, allowing it to anticipate and respond to rapid changes in environmental and socio-economic conditions.

Each studio has 10 potential topics under two key areas to be tackled. From the start of the semester, using the topics given below as a guide, students will work in groups to advance their research and analysis into the site.

A studio-based draft concept masterplan is the intended outcome for the 1st half of the semester. For the 2nd half of the semester, the small groups will define a group project with the topic of their choice and develop that into specific site-based design strategies. Students will then be asked to develop design proposals. The intended outcome at the end of the semester is to have all group projects overlayed on one district scale plan per studio.

Planning and design work will be evaluated based upon its relationship to knowledge developed throughout the semester and the degree of development and inquiry undertaken by the group.

AREA 1. CARE. CONNECT. COEXIST: FOSTERING HUMAN AND WILDLIFE RELATIONSHIP With biologists' inputs and theoretical knowledge of socio-ecological functions of wildlife in the PLAB, the studio will begin with two scale site analysis. Further exploration is needed to understand how wildlife conservation and monitoring can meet the seemingly conflictual demands of urban development and public preference towards living with wildlife. Potential topics (but not limited to) are as follows; 1. Soil restoration & permeability with insects 2. Landscape connectivity with birds 3. Seed dispersal & food sources with arboreal and ground animals 4. Watershed protection with aquatic animals 5. Wildlife economies

11

AREA 2. REUSE. REPRODUCT. REDIRECT : MANAGING NATURAL AND HUMAN RESOURCE FLOWS Aiming to optimize resource usage efficiency in construction and management, students will begin to quantify carbon footprint from land development, existing resources, including soil, trees, and construction materials. In ‘Resources’, soil conditions, trees, and other construction materials will be discussed for recycling and reuse in future development towards a productive ecosystem for the new town. Potential topics (but not limited to) are as follows; 1. Land & Soil management 2. Water management 3. Recycling existing natural elements as natural capital 4. Recycled construction materials (e.g.Low-carbon material specification) 5. Landscape related business (e.g. Green Manufacturing)

12

REFERENCE [i] Rivkin, L. R., Santangelo, J. S., Alberti, M., Aronson, M. F., de Keyzer, C. W., Diamond, S. E., ... & Johnson, M. T. (2019). A roadmap for urban evolutionary ecology. Evolutionary applications, 12(3), 384-398. [ii] Diwekar, U., Amekudzi-Kennedy, A., Bakshi, B., Baumgartner, R., Boumans, R., Burger, P., ... & Theis, T. (2021). A perspective on the role of uncertainty in sustainability science and engineering. Resources, Conservation and Recycling, 164, 105140. [iii]Forman, R. T. (2014). Urban ecology: science of cities. Cambridge University Press.

Broto, V. C., Allen, A., & Rapoport, E. (2012). Interdisciplinary perspectives on urban metabolism. Journal of Industrial Ecology, 16(6), 851-861. [iv] Steiner, F. (2014). Frontiers in urban ecological design and planning research. Landscape and Urban Planning, 125, 304-311. [v] Steiner, F. R., Thompson, G. F., & Carbonell, A. (2016). Nature and cities. The ecological imperative in urban design and planning. Cambridge: Lincoln Institute of Land Policy. [vi] Hwang, Y. H., & Jain, A. (2021). Landscape design approaches to enhance human–wildlife interactions in a compact tropical city. Journal of Urban Ecology, 7(1), juab007. [vii] Low, M. E., Pocklington, K., & Ng, P. K. (2019). 200: Points in Singapore's Natural History. Lee Kong Chian natural history museum. [viii] Clauzel, C., Jeliazkov, A., & Mimet, A. (2018). Coupling a landscape-based approach and graph theory to maximize multispecific connectivity in bird communities. Landscape and Urban Planning, 179, 1-16. [ix] Etherington, T. R. (2016). Least-cost modelling and landscape ecology: concepts, applications, and opportunities. Current Landscape Ecology Reports, 1(1), 40-53. [x] Cadavid-Florez, L., Laborde, J., & Mclean, D. J. (2020). Isolated trees and small woody patches greatly contribute to connectivity in highly fragmented tropical landscapes. Landscape and Urban Planning, 196, 103745. [xi] Valencia, N. (2020, October 13). Not all parks should be green: 10 tips to design landscape infrastructure.

ArchDaily. Retrieved Jan 5, 2022, from https://www.archdaily.com/926764/not-all-parks-should-be-green-10-tipsto-design-landscape-infrastructure [xii] Low, YJ (2019, March 24) Explainer: Why sand is so highly valued and the controversy surrounding crossborder trade. Today Online. Retrieved Jan 5, 2022, from https://www.todayonline.com/singapore/explainer-whysand-so-highly-valued-and-consequences-overmining [xiiii] Stephanie Nah Yun Yuan, 2017, M.Arch thesis, Architectural Symbiosis: Forestry & Urbanism [xix] Lena Chuan, 2021, Transforming Singapore into A City in Nature, CUGE lecture series

13

14

STUDIO CHRONOLOGY 10 January - 1 May 2022

15

The studio started off with an orientation of studio "Birds on bulldozer" by tutors, Associate professor Hwang Yun Hye and Ms Guo Lehana followed by introduction to the entire semester's schedule. The students were then tasked to group themselves into groups of 3 based on the choice of topics given.

A series of guest lectures was also given on the following topics: • Planning for Future PLAB by Mr Tan See Nin (URA) • Summary on the First Report of the PLAB Research Report by Ms Soh Yun Yee (NUS PLAB Research Team) • Design, Construction, and management of Jurong Lake Garden by Ms Ng Abby (Nparks) • Potential and Limitation of Natural Resource Management in Landscape Projects by Mr Choo Jeverss (Mao Sheng Construction) • Stages of Building and Infrastructure Construction by Ms Lim Sheau Miin (DP Architects)

12 JAN Studio Orientation

19 JAN Field Trip For the morning discussion, the studio was tasked to explore the PLAB site prior to the guided field trip and to identify the various landscape typologies found within the boundary.

Dr Shawn Lum and Dr Anuj Jain then led the studio on a field trip. While stopping at various key areas, both the guest guides provided a commentary on the ecological structure and history of the site.

16

Each studio shared their site model making intention in terms of the scale to use, materials to employ and color scheme. After which, each group presented their research and analysis of the site based on the chosen topic. As most of the site data was provided by NUS PLAB Reseach Team, the students were tasked to filter through the data and to present only what is relevant.

The topics presented were: Area 1. Care. Connect. Coexist: fostering human and wildlife relationship 1. Soil restoration & permeability with insects 2. Landscape connectivity with birds 3. Seed dispersal & food sources with arboreal and ground animals 4. Watershed protection with aquatic animals 5. Wildlife economies Area 2. Reuse. Reproduct. Redirect : managing natural and human resource flows 1. Land & Soil management 2. Water management 3. Recycling existing natural elements as natural capital 4. Recycled construction materials (e.g.Low-carbon material specification) 5. Landscape related business (e.g. Green Manufacturing)

26 JAN Exercise 1 Presentation & Model Discussion

2 FEB Exercise 2 Studio Site Model Each studio was required to produce 1 overall physical model of the existing site. The models made have to be flexible such that the existing elements can be removed and replaced with the design interventions. The site model included the contours / terrain, road networks and any other layers necessary to demonstrate context according to the selected topics of the studio.

17

The Concept Masterplan Design workshop was led by the tutor of each studio. The students were guided through the drafting of the concept masterplan through various design prompts, such as the identification of various user types, understanding the issues in relation to the individual group topics, and consideration of the external site context. As part of the intending studio process, intergroup discussion was also conducted to understand the requirements and limitations of each topic. An overall studio draft concept masterplan was the deliverable set for the following week.

9 FEB Concept Masterplan Design Workshop

16 FEB Masterplan Negotiation and Model Modification Using the first draft of the concept masterplan as the base, the studio tutors raised various queries to challenge the students to further enhance the masterplan.

Studio 1 worked on demarcating core ecological zones and parceling of the site based on the assumed demands of each topic.

Studio 2 conceptualised a rating strategy to facilitate the demarcation of zones required for each landuse type.

18

The midterm review was divided into 2 sessions. The morning session was a presentation of the overall studio concept masterplan followed by a Q&A session with invited critics, namely, Dr Heng Chye Kiang (NUS), Mr Fung John Chye (NUS), Dr Ong Ghim Ping Raymond, who were all part of the NUS-PLAB Team, and Dr Tan Puay Yok (NUS).

23 FEB Midterm Review

The afternoon session was curated as a presentation of individual group masterplanning and concept design strategies, followded by a Q&A session with invited critics, namely, Dr Tang Dorothy (NUS), Ms Liu Huei Lyn (PUB), Dr Lum Shawn (Nature Society Singapore), Dr Anuj Jain (Birdlife International), and Mr Koh Jiann Bin (Coherean Pte Ltd).

The invited critics provided critical and valuable comments for the students to consider as they further their design strategies in the following weeks.

19

Following the comments received at the Mid-term Review, each studio relooked into their masterplanning strategies, continued the intergroup negotiation process and made the neccessary adjustments.

Further design developments on individual group topics were also made in consideration of the comments received by the external critics.

2 MAR - 9 MAR Masterplan Adjustment and Design Development

16 MAR - 13 APR Design Development With the overall studio's Concept Masterplan firmed up, the last month of the semester was dedicated for individual group consultation to further the design schemes of each topic.

20

20 APR Final Review

At the Final Review, each studio presented their overall studio masterplan followed by the individual group topic. Two groups of external critics were invited to join session. Studio 1's "Happy & Resilient PLAB" was critiqued by Mr Tan See Nin (URA), Mr Lambreghts Stefaan (Grant Associates), and Dr Tang Dorothy (NUS). Studio 2's "Regenerative PLAB" was critiqued by Mr Wright Jason (NParks), Mr Therry Jelle (Ramboll), and Dr Ervine Lin (NUS).

The semester concluded with the submission of a compiled studio report and the students' reflections found in the subsequent chapters of this book.

21

HAPPY & RESILIENT PLAB CONCEPT MASTERPLAN GENERATION & NEGOTIATION PROCESS

STUDIO ONE | DONG LIWEI | ZHANG YUER | SHEN YUNNAN | JIANG YULI | LIU ZIYUE | YE HAN | WANG YU | | ZHANG WENTING | LIU KANGSHENG | LIN LAN | HU DIE | JIN ZHUOYIN | | JANINA KWAN | SABRINA SHAFARI | XING ZHIYAN | TUTOR: LEHANA GUO

MASTERPLAN ISSUES

24

Singapore is small nation that has experienced rapid development in over half a century, transforming itself into a first-world country by thriving as a global financial hub. Despite its constant development, there are issues that the nation has yet to fully resolved, along with the rise of future challenges that grow with the everchanging state of the world. The development of PLAB will hold great infuence over Singapore's future state, as its foundations will be shaped by present and future conditions. Thus, the foundation of the studio masterplan will be guided by Singapore's current development, its issues and future issues.

25

HAPPPY ＆ RESILIENT PLAB Topic Generation

26

27

MASTERPLAN NEGOTIATION PROCESS Green Space Negotiation

28

Population Density

29

MASTERPLAN NEGOTIATION PROCESS Road Network & Hierarchy

30

Landuse

31

MASTERPLAN TIMELINE The PLAB studio masterplan takes place across 30 years in 4 different phases.

32

33

OVERALL MASTERPLAN

34

35

36

HAPPY & RESILIENT PLAB CONCEPT MASTERPLAN TOPIC OF FOCUS

LANDSCAPE CONNECTIVITY WITH BIRDS RECYCLED CONSTRUCTION MATERIALS LAND & SOIL MANAGEMENT WATER MANAGMENT WATERSHED PROTECTION WITH AQUATIC ANIMALS

37

38

LIVE WITH BIRDS LANDSCAPE CONNECTIVITY WITH BIRDS

Dong Liwei, Shen Yunnan, Zhang Yuer

Singapore's primary forest area has been reduced to 2% of what it used to be. Ninety percent of tree cover loss occurred in urbanized areas. And the potential breakdown of pollination and dispersal mechanisms through the loss of species is also a risk factor. At the same time, One in seven people in Singapore has experienced mental disorders. Especially during the COVID-19 pandemic, More people seek mental health support.

Four aspects led us to choose birds as the target species. The first is the status quo of birds, and there has been a fluctuation decline in bird total counts and species in Singapore in 10 years. Secondly, Singapore is transforming itself into a City in Nature. The goal of 60 species recovery plans for the animal is set. Moreover, well-being was positively related to natural features, including species richness and abundance of birds for humans. And Singaporeans were generally optimistic about birds. Finally, birds are beneficial to the environment, and they are good pollinators and seed dispersers to facilitate the connectivity of the landscape.

New findings indicate that Singapore is now at the intersection of two flyways, the CAF and EAAF. PLAB is the green core in the west of Singapore and one of the most significant green spaces apart from the Nature Reserve.

Therefore, our design will mitigate the problem of deforestation, mental health, and climate change based on the Studio issues. And our vision is to transform PLAB from a bird-forbidden site to a bird-friendly site and then help the urban forest regeneration quickly while creating more opportunities for PLAB residents to get closer to nature. By connecting people more c l o s e l y w i t h n a t u r e a n d n a t u r e w i t h n a t u r e , P L A B w i l l b e c o m e a h a p p y a n d r e s i l i e n t c i t y.

Moreover, our target is to keep the bird observation distance from 10.8m to 28.6m. Secondly, ensure access to parks within 300m of residential areas. Thirdly, increase public parks and open space to 9m2 per capita. Finally, the design will preserve 100% of the core habitat and increase the 1836226m2 forest area.

In conclusion, more birds will arrive as the forests mature and the greenery is better connected. Human wellbeing is improved, and PLAB is resilient against climate warming and extreme disasters with forest regeneration.

39

PRELIMINARY ANALYSIS Design Concept

40

41

PRELIMINARY ANALYSIS Background

42

43

PRELIMINARY ANALYSIS Why bird?

44

45

PRELIMINARY ANALYSIS Bird Situation

Birds Migrat

46

tory Routes

INTERNATIONALLY: New findings indicate that shorebirds use both the CAF and EAAF to reach their breeding grounds.

Singapore is at the intersection of 2 flyways.

SINGAPORE: PLAB can link to Central Catchment Nature Reserver, and it can also link to Coney Island and Pulau Ubin.

PLAB: PLAB is one of the largest green space apart from the Singapore Nature Reserve and is the green core in the west of Singapore.

47

PRELIMINARY ANALYSIS Bird Species Selection

48

49

PRELIMINARY ANALYSIS Analysis & Calculation Method

50

51

PRELIMINARY ANALYSIS

Landscape Connectivity with other patches outside PLAB

52

53

PRELIMINARY ANALYSIS Potential Corridor

54

55

PROPOSAL

Masterplan Generating Process

56

57

PROPOSAL Masterplan

58

59

PROPOSAL

Redefinition of Different Forests

60

PROPOSAL

Forest Succession Timeline

Legend

61

PROPOSAL Design Guideline

62

63

PROPOSAL

Detail Design Location

64

65

DETAIL DESIGN | QUARTER FOREST Design consideration

66

Detailed Plan

Perspective of Pavilion & Elevated wooden path 67

DETAIL DESIGN | NEIGHBORHOOD FOREST Detailed Plan

68

Design consideration

69

DETAIL DESIGN | NEIGHBORHOOD FOREST

Design Consideration The site supports potential corridors for Black napped oriole, Olive-winged bulbul and Green imperial Pigeon to pass through. According to the creation guidelines of neighbourhood forest, a safe corridor of at least 30m wide and a bird-human distance of at least 10.8m wide should be preserved.

According to studies, an NDVI of around 70% in the urban environment is ideal to ensure maximum bird diversity. This means that meeting such target is optimal for bird survival. The stimulated NDVI of the planting design reached 74%. Based on the vegetation type preferences of the three target species, the following plants will be planted as the keystone species of the site.

70

71

DETAIL DESIGN | NEIGHBORHOOD FOREST

72

73

DETAIL DESIGN | TRANSITION ZONE Neighborhood forest - Quarter forest

Neighborhood forest - City forest

74

Quarter forest - City forest

Red jungle fowl Connecter

75

76

77

78

RE+ RECYCLED CONSTRUCTION MATERIAL

Jiang Yuli, Liu Ziyue, Ye Han

The fluctuations in the social and economic system caused by the deterioration of the environment, natural resources crisis and the emergent social problems have had a serious impact on Singapore, a country that is highly dependent on imports. For example, in urban construction, the cost of materials has risen sharply.

Our concept “RE+” in PLAB provides new ideas for the long-term development of a resilient city: a recycling system that extends the life cycle of materials and a heritage park made of recycled construction waste.

The government, enterprises, associations, and other organizations cooperate with each other and share information in the new system, which improves the quality of recycled products and further promotes the goal of “Zero Waste”. In the process of visiting the heritage park and experiencing the handcraft activity with different materials, the public can not only gain happiness, but also raise their awareness of environmental protection.

“RE+” makes PLAB a happy resilient model town.

"RE" itself represents a process of repetition and renewal. We will achieve the following three visions mainly through 3 related strategies: Reducing carbon emissions from material recycling process For the "REposition" strategy: we will reduce the transportation distance of deconstruction waste, and improve energy utilization and recycling efficiency by re-establishing a new comprehensive material recycling center. The efficient recycling and orderly management of materials will achieve the vision of CO2 reduction.

Enhance the awareness of material recycling in the whole society For the "REfresh" strategy: we will awaken residents' awareness of material recycling through prototyping research on detachable designs, designing heritage parks using recycled materials, and incorporating visual material recycling knowledge. At the same time, the planning of the material experience area will play a certain educational role for children and adolescents.

Improve downcycling status and extend material life cycle For the "REvalue" strategy: we will extend the life cycle of construction materials and retain the utilization value of materials through the introduction of the "rental system" system. A more complete material flow system and the reuse of higher-frequency recycling components will alleviate Singapore's reliance on imported materials to a certain extent, and at the same time make a contribution to alleviating the material crisis.

79

ISSUES ANALYSIS: MACRO SCALE ISSUE 1: HIGH CO2 EMISSION

ISSUE 2: LIMITED NATUR

1. Current Status: [1] The real estate industry’s carbon emissions account for 20% of the Singapore’s.

[2] 30% comes from the material manufacture, transportation and construction.

2.Why CO2 matters: Carbon dioxide emissions are the most important contributor to global warming. It also changes the pH value of seawater, thereby affecting the marine ecological environment.

1. Consumption Speed: TWICE 2. Annual Consumption:100.6b 3. Proportion: >50% is sand, gr building 4. Recycle Rate: Fallen from 9.1 We cannot do this indefinitely - o needs to be halted.



417.88ppm

  



 







            

Fossil Fuels Minerals

Atmospheric CO2 concentration is rising rapidly













 

 

 CO2 is the most important factor causing global warming

Building materials emit a large amount of carbon dioxide during their life cycle!

     





If we don’t recycle the ma the raw materials will depleted very quickly

Source: https://keelingcurve.ucsd.edu/, https://www.ecocyclesolutionshub.org/about-zero-waste/resource-depletion/ 80



Ecosystems

RAL RESOURCES

ISSUE 3: OVER-RELIANCE ON IMPORT

E the population growth rate bn TONNES ravel and cement used for

1. Current Status: Singapore is a country that relies heavily on imports of building materials, with total imports rising by 19.7% in 2021.

2. Why this matters?

The price of building materials in Singapore will be largely controlled by the exporting country and easily affected by the environment. (Example)rebar prices have moved up more than 15 % since the war started.

1% to 8.6% our hunger for virgin material



 Price trends of building materials: Metal & Other

 





 ？

            







































 





Singapore’s building materials mainly rely on imports. Due to factors such as the epidemic, material prices continue to rise!



aterials, be y!

81

ISSUE ANALYSIS PLAB Scale

HIGH CO2 EMISSION FROM DECONSTRUCTION

HIGH DEMAND FOR CON

438,500 Estimated res

1,011,150 m3 Demolition waste ≈ 404

Swimming pool

1,856,821 t

CO2

≈ 7,288,100 m2

53 days

2.7 mt sand ≈ 1 month

PLAB Forest

Assumed demolition area: 7.22 km2

PLAB Future residential area: 14.

Assumed construction waste: 9.5 16,300 t Concrete

2500 t Stone

3000 t Metal

183 t Plastic

12.8 mt Concrete

238,220 t Stone

2.7 m

made of

Reference 1 m2

≈ 1.8t CO2 / year Forest

82

Reference 1

≈ 2500 m3

Swimming pool

1 year

≈ 50 mt sand Mekong

1

National S

NSTRUCTION MATERIALS

DECREASE IN IMPORTED BUILDING MATERIALS

sidents ≈ 8

Imports of material drop by 7-50%

National Stadium

h excavation

Inventory affects construction progress Mekong

.7 km2

Import value of construction material in 2018

Import value of construction material in 2020

5 million m3 874,665 t Metal

52735 t Plastic

Metal

Stone / plaster

SGD 270 Million

Prefabricated building

Lime/ cement

SGD 1350 Million

million tons sand

Reference (Tradingecnomics.com) Imports value 2018 vs 2020 = 55,000 people

Stadium

Prefabricated buildings: 1765 M→1350 M Stone / plaster: 880 M→810 M

Metal: 350 M→175 M Lime / cement: 1220 M→680M 83

CONCEPT & STRATEGIES RE+

REPOSITION Relocate integrated recycling centers on site; Redefine waste management and recycling centers as an "atttactive and lively urban space" in the neighborhood.

*Definition of "RE+" 1. The repeating of an action or process; 2. A change in the position or state of something. * Happy & Resilient 1. Happy Public gains happiness in the process of visiting the heritage park and experiencing the handcraft activity with recycled materials.

2. Resilient A new recycling system is build for the long-term development of a resilient city. Different organizations coorperate and share information, which further promotes the goal of "Zero Waste".

84

Creatively set up for recycling mat value to waste, a life cycle of

REPOSITION p a rental system terials, giving new and extending the recycled products.

REFRESH Use the educational significance of landscape space to awaken people's awareness of material recycling and resource protection.

Educational Line: With the support of AR technology, the material information stored in the rental system will be shared with the public. At the same time, more activities will created for teachers, students and residents to visit and participate, thus strengthening their focus on a sustainable future.

85

MASTER PLAN

MAIN CONSIDERATIONS

LEGEND

500M

PLAB Boundary Recycling Center Aquaculture Area

Avoid core habitats

Area & Location Adjustment Confirm the location of the of Industrial Zone recycling center

Industrial Area (Smart Manufacturing)

 

Commercial Area

Industrial Area (Semiconductor) Industrial Area (Smart Logistics) Residential Area Heritage Area Boundary (Design Site) Heritage Building Public Landscape Heritage Landscape Natural Landscape Water Body Forest Inner Loop Road Roads

N 0 200

500

Functional Zoning Design 86

1000

2000M

 

MAIN CONSIDERATIONS

LEGEND High-tech commercial center Recycling Center Confirm the core location of the CBD

Functional radiation range

Material transport system

Functional zoning analysis of heritage area

Heritage Landscape Public Landscape Natural Landscape Transition with Residential Area Inner loop road Heritage Area Central Axis Function Axis Source of construction materials Consumption of construction materials

N 0 200

500

1000

2000M

Relationships between functional zones 87

TIMELINE

Sequential Development

Complete the current planning goals and 100% recycling of the original site demolition materials.

The two recycling centers will be built.

DEMOLITION

newly demolished area previously demolished area

CONSTRUCTION

newly built area previously built area

88

Based on the building life cycle within the period(RSP) of 50 years, during Phase 2, ne maintenance and material updates will be ca

The relocation of PLAB will start.

reference studu ecessary building arried out.

Comlete the construction of the new industrial parks.

At the end of the life cycle, a new round of holistic demolition and recycling will begin.

New residential areas will be built on the original Logis Park and Kaki Bukit Industrial Estate.

The new town will be built.

89

REPOSITION

On-site Material & Energy Flow

Energy Plant & Sewage Treatment Facility Co-generation Plant Tipping Building Material Bank Solar Roof

Electricity Electricity CDW Input Product Output

Foodwaste Input

Electricity from solar power

Electricity from foodwaste

6 h/per day

442,406 Residents in PLAB

500,500 m2 Area

147,469 Families in PLAB

(Refer to the maximum area of building roof in industrial area)

110,601 kg/per day Foodwaste

190,000 Solar Pannels 19,908 m3/per day Biogas 182,500 kw/per day Electricity

This amount of power can process:

66,361 kw/per day Electricity

5,020 t Steel Waste

90

or

910 m3 Concrete Waste

or

73,000 t Stone Waste

This amount of power can run: 13 Crushing Machines per day

Reposition Basis 1 A buffere zone of 500 meters is reserved between the recycling center and the residential area. Plant isolation belts are needed to reduce the impact of pollution on the living environment during the recycling process.

@ New Defu Industrial Park

@ New Tampines Industrial Park

Reposition Basis 2 The material bank will be intergrated with the pocket garden from the plant group, making it not only a part of an industrial facility, but also a more comfortable public space.

Green Space

Energy Flow

Recycling Center

Inner Loop

Industrial Area

Material Flow

Solar Roof

500m Buffer

Residential Buildings

Food Waste Collection Point 91

REPOSITION: ON-SITE RECYCLING CENTER & MATERIAL BANK Material Processing Route Education Route Area of Recycling Center

≈2 Hectare It can accommodate the recycled materials from about 200 buildings at the same time.

The comprehensive material recycling center integrates the resources of the original 5 single material recycling centers of PLAB, and expands the scale on the original basis. The integrated material recycling center is connected to the urban green space park. An educational route is designed inside the center to allow university visits to popularize material knowledge and enhance recycling awareness. Therefore, the material recycling center is not only an ordinary processing plant, but also can be repositioned as a green space and educational point of a city.

DE

MO

92

LITI

ON

AR

EA

Pro ce Bui ssin ldin g

Sta

ff B

Du Sor mped ting and Bui ldin

g

uild

ing

Pub

lic G

Ma

teri

ng g

ion

pac

e

al B

ank

Cen

ter

R

CO

E MPR

H

IVE S N E

R

4

G

LIN C Y EC

TE N E C

3

cat

nS

2

Edu

ree

93

REVALUE Rental System

Plan & Design

Procure

Government Agencies

Shared Information Platform

HDB Nparks URA LTA

Material ID Cards

PUBLIC BIDDING MANAGE

Re-value Agency

COORPERATE

Construct

Const

LEND & RENT

Deve Construction fir

A new agency responsible for the process

Designers & Researchers

Recycling Center

Architects Landscape Architects Engineers Researchers

Material Bank Tipping Building Education Center R&D Center

SUPPORT

QUALITY ASSESSM CARRY

Social Benefits

Economi

Workers

Transacti

1.5 One-north High-tech Park 600+ Eco-idustries 75000+ Employment

MATERIAL BANK

Government Agencies Demand: HDB, Nparks, URA,LTA Supply: RVA (Re-value Agency responsible for the whole process)

RVA A

i.rent materials

i 1.Employment 2.Productivity

iii.return materials

Indicators of the Econom EPR System 1.Liability 2.Economic Responsibility 3.Physical Responsibility 4.Ownership 5.Informative Responsibility

Residents 442,406 Residents 53,088 0-14 years

Process Cost 1.Education 2.Better Living Environment 3.Reliable Housing Information

Designers & Researchers 48+ Recycled Material Typologies 9+ Landscape Prototypes

1.Innovation Base 2.Practice Base 3.Policy Support 4.Support DFD

94

Landfil Transportation Cost

Facility Cost Job Creation

Construction Firms 20years Lease Term 2 Material Banks 1.Supply Chain 2.Lower Cost 3.Reliable Material Information

d

84

X

With the reduction of raw material sourc the price of raw materials will inevitabl disposing waste in landfills, continue It's much more expensive to send wa to recycle it. Innovation in materials, capabilities could all help create new d the future, and also create new markets

Source: https://bettermeetscreality.com/

Operate

End of the lease of material Users

Clients and residents

truction

Project Owner Developer Nparks ... ...

Projects Roads Parks Infrastructures

eloper and industrial rms

RVA: "Whether to extend the lease"

MENT

MAINTENANCE

YES

RETURN

Ecological Benefits

ic Benefits

1.Extend Material Lifespan

ion Mode

AGENCY

NO

CONTRACTOR

ii.repair materials

Clients

without rental system

with rental system

Concrete

50+ years

Concrete

200+ years

Steel

25 years

Steel

200+ years

Stone

50+ years

Stone

300+ years

Plastic

5 years

Plastic

50+ years

mic Viability of Recycling

ll & Incineration

2.Delay the Material Crisis

Rental Recycling

90$/t

18$/t

dump:4$/t

recycle:54$/t

40,000,000$

25,200,000$

X people/t

X+2 people/t

ces and the increase in market demand, ly rise. Tipping fees, which are fees for to rise as waste production increases. aste to landfill or incinerate it than it is , product design and recycling system demand for some recycled materials in s in some instances.

/is-recycling-economical-and-profitable/

without rental system

with rental system

Concrete

2092yr

Concrete

2330 yr

Silver

2025 yr

Silver

2125 yr

Copper

2045 yr

Copper

2250 yr

Plastic

2050 yr

Plastic

2450 yr

3.Reduce Carbon Emissions Landfill

Traditional Recycle

Rental System

CO2 Emission

100%

57.1%

52.9%

Energy Saving

-0.00144%

+6.22%

+53.27%

Source: https://doi.org/10.1016/j.egypro.2015.07.581 95

PROTOTYPES

CONCRETE

Coarse aggregate > 4.75 mm

METAL

Fine aggregate < 4.75 mm (fine)

Metal

Etched concrete

Undulating concrete

Road edge

Grid

3D Printing

Modular furniture

Structured beam & joints

Perforated board

Detachable concrete board

3D Printing

Retaining wall

Reflective metal board

Wrinkled concrete

Layered concrete

Detachable metal skin

Detachable steel structure

BUILDING

WALL

FURNITURE

PAVEMENT

MATERIAL SIZE

REfresh

96

STONE

PLASTIC

Stone for gabion 100 - 200 mm

Steppingstone > 650 mm

Regular stone

Steppingstone

Plastic road

Plastic tile

Cylindrical stool

Modular stone

Modular plastic

Hex podium

Stone wall

Noise barrier

Planting box

Rotatable board

Stone building

Gabion building

Luminous plastic box

Temporary plastic structure

Pellet

97

TYPOLOGIES REfresh

MATERIAL SEARCH

NAME

RECYCLED FROM Selected

CONCRETE

METAL

STONE

PLASTIC

CONCRETE

METAL

Coarse aggregate > 4.75 mm

Fine aggregate < 4.75 mm (fine)

Metal

Birds co STONE

Stone for gabion 100 - 200 mm

PLASTIC

Steppingstone > 650 mm

USED FOR

Pellet

Ecologic

Historical landscape Naturalistic landscape Public landscape

EDUCATION METHODE Raise awareness by observing the use of materials in design Raise awareness through AR educational application Raise awareness through activities of assembling materials

98

Rain ga

E

Prototype name

SCHEMATIC

EDUCATION METHOD

orridor

cal park

arden

99

TYPOLOGIES REfresh

MATERIAL SEARCH

NAME

RECYCLED FROM Selected

CONCRETE

METAL

STONE

PLASTIC

CONCRETE

METAL

Exhibitio

Coarse aggregate > 4.75 mm

Fine aggregate < 4.75 mm (fine)

STONE

Stone for gabion 100 - 200 mm

Metal

PLASTIC

Steppingstone > 650 mm

Pellet

Historica

USED FOR Historical landscape Naturalistic landscape Public landscape

EDUCATION METHOD Raise awareness by observing the use of materials in design Raise awareness through AR educational application Raise awareness through activities of assembling materials

100

Memoria

E

Prototype name

SCHEMATIC

EDUCATION METHOD

on

al protection

al

101

TYPOLOGIES REfresh

MATERIAL SEARCH

NAME

RECYCLED FROM Selected

CONCRETE

METAL

STONE

PLASTIC

CONCRETE

METAL

Fruit ga

Coarse aggregate > 4.75 mm

Fine aggregate < 4.75 mm (fine)

STONE

Metal

PLASTIC

Playgro Stone for gabion 100 - 200 mm

Steppingstone > 650 mm

Pellet

USED FOR Historical landscape Naturalistic landscape Public landscape

EDUCATION METHOD Raise awareness by observing the use of materials in design Raise awareness through AR educational application Raise awareness through activities of assembling materials

102

Plaza

E

Prototype name

SCHEMATIC

EDUCATION METHOD

arden

ound

103

MATERIAL FROM THE DEMOLITION Total demolition area = 827,000 m2 = 16,540 Industrial Units Total demolition material= 347,340 m³ =

451,903 T

Concrete

Stone

69,558 T

2,119 T

Plastic

139 Swimming pools

25,106

3,864

118

Recycling treatment

Metal

4,738

85,278 T

REFERENCE

???

How much building material

1 Swimming Pool 1

≈ 10,423

≈ 2500m³ 18 t freight lorry

1 m2 Fo 1

can we get from the demolition?

Defu Industrial Estate 899 Buildings 3 Floor Average 827,000 m2 * 3

104

16,5 Uni

REPOSITION

REVALUE

REFRESH

CO2

70%

316,332 T

Concrete

80% Stone

70%

Total CO 2 :

55,646 T

638,858 T CO2

1,483 T

Plastic

Registration in

can be absorbed by

rental system

100%

orest

≈ 500

540

Metal

11,844 T

≈1.8 t CO2 / year 18 t freight lorry

7,288,100 m2 PLAB Forest in 17 days

1

Industrial unit = 150 m2 * 4 m (Floor height)

1

≈ 50

18 t freight lorry

Demolition in 2025 Construction in 2030 Heritage Area

its

Existing inefficient material recycling plant

105

DESIGN ANALYSIS OF THE HERITAGE PARK

Route 2

Route 1

Inner Loop Road

Material Transportation Route Analysis

Children Recreation Area

Terminal Building

Hanger

are a

Are

Ec

a

olo

ce

ice

exp erie n

Retained Runway

erv

ting

lic S

gic

al W alk

ing

Pla n

Cultural Exhibition Area

Conserved Bunker Pub

Are

a

The Air Force Museum

Functional Zoning & Original Element Analysis 106

Tour Route Analysis Commercial Connection

Central Axis

Community Axis

Ecological Axis

Locational Linkage Analysis 107

HERITAGE PARK MASTER PLAN

LEGEND

1 The Air Force Museum 2 Hangar

6

3 Water Plaza 4 History Exhibition Hall 5 Material playground

5

6 Terminal Building

7

7 Aerial Circular Plank 8 Retained Airplane Runway

4

9 Cafe 10 City Forest 11 Citizen Retal Garden 12 Ecological Walk Area

2 3

1

108

8

9

10

11

12

N 0

50

100

200

500M

109

HISTORICAL AREA Heritage park redesign

Overview of rental materials

How 1

In order to build the airbase historical area, I rented a total of...

CONCRETE 334 T

STONE 43 T

METAL 227 T

PLASTIC 115 T

Deta

How can recycled materials show the history and memory?

Airplan Trail Path Create a continuous path for visitors based on the trail of airplane to walk through the outdoor air exhibition.

Detachable plank road

Outdoor Gallery

Deta

National Day Perfomance End of Lease 2

Runway Light Square Light is the guide of the planes, but also the guide of the crowd, create a lively evening event space.

Detachable street lamps Reused aircraft jet tubes

Citizens Water Plaza Use the water purified by the water group to create the possibility of waterfront activities for the citizens.

Detachable stone steps Detachable lounge chairs

110

Evening Events PLAB Landmark

End of Lease

Water Activities Sunken Plaza Rainfall Tank End of Lease

Deta

REVALUE

REPOSITION

REFRESH

w to use recycled materials at this site?

achable Plank Road Product

Components Rail

1

2

Recycled Material Used

Pavement

a.945mm*1025mm fence 1 b.2000mm handrail c.50mm*50mm*1260mm structual

achable Street Lamps

a.No.1 grid paving b.No.2 grid paving

Connector

a.screw nut b.U-shaped steel

2

Product

Components

Structural Column

recycled metal

Recycled Material Used

Concrete Base recycled metal 2

1

a.for 2.5m steet lamps 1 0.5m garden lights b.for

a.for 2.5m steet lamps b.for 0.5m garden lights

3

recycled concrete

2

achable Lounge Chairs Product

Components Structural Column

Shape Base

Recycled Material Used Plastic Suface

recycled metal 3

a.40mm*40mm*460mm b.40mm*40mm*800mm

a.customized according to seat and table height

a.90mm*1500*2140mm plastic board

recycled plastic

111

RECREATIONAL AREA Heritage park redesign

Overview of rental materials In order to build the recreational area, I rented a total of...

CONCRETE 926 T

STONE 38 T

METAL 0.4 T

PLASTIC 39 T

Ho Slid

1 1 1

60cm Meta

How to make playgrounds with recycled materials?

Metal

Plastic

Metal is suitable for making some small-scale amusement equipments.

Metal climbing frame

Metal swing

Plastic is light in weight, so it can be used as a large-scale amusement equipments.

Plastic slide

Plastic seesaw

2 2 2

Concrete

Stone

Concrete is very strong and suitable as a base.

Concrete skatepark

Tem

Concrete steppers

Stone is a relatively natural material, suitable for wild-shaped amusement facilities.

Stepping stone

20 Pla

Stone climbing wall

10c Con

112

REVALUE

REPOSITION

ow to use recycled materials at this site? de

1 1 1

REFRESH

2 2 2

Plastic

m al 1 1 1

2 2 2

Bolt mechanism

Bolt mechanism

mporary stall 11 0

1 1 1

0cm astic

cm ncrete

cm

1 1 1

Me

tal

Embedded installation

2 2 2

3 3 3

Bolt mechanism

2 2 2

Bolt mechanism

Rotatable plastic plate 3 3 3

Embedded installation

Embedded installation

113

PUBLIC AND ECOLOGICAL AREA Heritage park redesign

Overview of rental materials In order to build the public area and ecological area, I rented a total of...

CONCRETE 2428 T

STONE 226 T

METAL 26 T

PLASTIC 4T

1 1 1

Ho Th

La

Where did the shape of this area come from?

Central axis

Original contour lines

Shape of plane

Final design

How to use recycled materials at this site?

Public area Public area creates a relatively quiet atmosphere, allowing people to have a resting space with outdoor furniture made with recycled material.

114

Ecological area In the ecological area, the recycled material used is mostly stone. Because they can better integrate into the natural environment.

1 1 1

REVALUE

REPOSITION

REFRESH

ow to use recycled materials at this site? he original demolition waste is added to let people intuitively feel the possibility of recycled material.

2 2 2

awn Lamp 1 1 1

3 3 3

Guide Sign 10

1cm Transparent plastic

m 50cm Plastic

Reinforced concrete

50cm Stone 1 1 1

1 1 1

Bolt mechanism Transparent plastic

Transparent plastic cap

Demolition waste: stone Engraved plastic board

Plastic pellet Transparent plastic cylinder for storing plastic pellet

90°

1 1 1

10cm Metal

Bolt mechanism

1 1 1

0c

5cm Transparent plastic

50cm Transparent plastic

Bench

Bolt mechanism

Trough for storing stones

Stone bench base Transparent plastic cylinder for storing the lamp

Original reinforced concrete

115

FRUIT AND VEGETABLE GARDEN Overview of rental materials 

In order to build the vegetable and fruit garden area, I rented a total of...

How people interact with the material?

Visitors

CONCRETE 220 T

STONE 7T

METAL 36 T

PLASTIC 7T



Procedures for leasing



Choosing the material of the planter box



Picking the seeds you want to grow



Teaching how to splice planter boxes

Rental House When the lease expires ...

Handle rental cancellation procedures Disassemble and clean the planter box

Ho De

Struc

Help customers transport materials to the corresponding garden

Repla M 

Oth

Alph

Harvest fruits and vegetables

Assemble and Decorate Fruit and Vegetable garden

Eat by themselves

Take care of fruits and vegetables

Sell to market

Have a dinner party Participate in festivals

116

 

 

 

ow to use recycled materials at this site? etachable Planter Box

ctural Analysis

 











    





Small Planter Box













100mm

Mint

100mm

Bay leaf

100mm

Basil

100mm

Potato

200mm

Parsley

200mm

Thyme

300mm

Carrots

400mm

Rose mary

400mm

Tomato

500mm

Lemon

600mm







Lettuce

 



  



Medium Planter Box





  

aceable Recycled Metals Sheets

  



Large Planter Box

her Small Structure

habet Plastic Modules

Compound Flower Stand



Replaceable Steel Available for climbing plants

 

Replaceable Free to Draw

 Recycled plastic clapboard

117

AFTER THE LEASE SITUATION1: Renew the lease

These iron sheets require maintenance procedures such as grinding and polishing, which are much cheaper than remanufacturing.

Some planter boxes in the fruit garden needs to be updated, and these materials will be returned here after maintenance.

When the lease expires, some managers want to continue to use these materials, but some need maintenance, they can choose to renew the lease.

Once these materials enter the re cleaning, repair, sanding and poli

SITUATION2: End the lease

This area will be planned as a residential area, so the landscape structure here needs to be demolished.

Some sites will be demolished or refurbished, so the manager has opted to end the lease. Therefore, all the landscape structures of the site will be transported back to the recycling center.

118

Some of the recovered materi of acceptable quality for mainte while the other is crushed and r

Since most of the landscape struc ditachable, after dismantling, som used in their original functions for part will be processed into raw ma

ecycling center, only simple ishing operations are carried out.

The detachable planting box is more convenient for material maintenance.

After maintenance, these materials will be returned to the original site and maintain the original function.

ials are enance, recycled.

ctures will be designed to be me materials will continue to be r simple maintenance. Another aterials.

I heard that these rides are made of recyclable plastic. so eco-friendly!!

When a new site needs to be built, these materials will be leased again. And it will continue its life cycle with new functionality.

119

It takes about 300 years or more to form 1 cm thick soil on the earth's surface, so the soil is an extremely valuable resource for human beings.

-Eduardo Mansur , FAO

120

LAND ＆ SOIL MANAGEMENT THINK AND INTERFERE THROUGH SOIL

Wang Yu, Zhang Wenting, Liu Kangsheng

Both land and soil are scarce resources for Singapore. With limited resources, Singapore needs to rely on a lot of imports. In addition, in order to meet the high-density population living on the limited land, Singapore needs to continuously carry out urban renewal. In this process, some environmental or social Issues will arise.

The relocation of PLAB will provide new opportunities for the development of new towns in Singapore, but the remaining problems of Land and Soil still need to be solved urgently. We plan our strategy in two stages.

Handing soil, land, and even social issues. Hope to create a Happy and resilient new model town based on sustainable land and soil management.

Our target is to solve or alleviate the above issues through land and soil intervention. And we made a twostage strategy. The first stage is soil regeneration. Remediate contaminated soil to Plantable soil. The second stage is agriculture Urbanism. Using regenerated soil for food production through the establishment of the PLAB agricultural network with 3 typology. Agriculture park for town level,mixed-use units for estate level, and agricultural street scape for block level.

Intervention through our strategy, we will regenerate about 100,250m³ of agricultural soil through soil regeneration and formed a closed loop of soil transportation within PLAB. We have added about 95 hectares of land for food production by establishing the PLAB agricultural infrastructure network. At the same time, ecological benefits are generated through the operation of these two systems, and it can also promote community participation.

121

ISSUE & VISION & TARGET

122

123

SOIL AND LAND CLASSIFICATION Layer of ground classification

124

125

FRAMEWORK ＆ STRATEGY

126

127

SOIL REGENERATION

Contaminated S

Soil Excavation

Screening and Crushing

Transportation

Heavy metal pollution

SOIL STABILIZATION

Self-check Passed

Accepted

Temporary Storage

Backfilling

Soil Chemical Treatment Organic Pollution

SOIL OXIDATION Restoration Workshop

Cover the dust net Compost

Agriculture Usage

Soil To Be Inspected Sieving and Crushing, Adding repairing agent, Mixing

128

32,250 m≥

New Agriculture Park

New Edibale Garden New Agriculture

Chemical 41.0 ha 102,500 m≥ ≥ Remediation (A)

10.2 ha 2.7 haNew Green Treated Soil For 8.2 ha 4.5 ha 25,500m≥ 6,750m≥ Agriculture Space (B) 20,500 m≥ 11,250 m≥ Excess (A-B)

82,000 m≥

Chemical C Remediation m (A)

32.3ha 807,50m≥

33.7 ha 84,250 m≥

PHASING

0 ha 6.2 ha Treated Soil For New Green N 4.5 ha 0m≥ 15,500m≥ Agriculture Space (B) 11,250 m≥

0 ha 0 m≥

Excess (A-B)

80,750m≥

73,000 m≥

28.2 ha 84,250 m≥

Treated Area

33,000 m≥

AGRICULTURAL CONSUME

AGRICULTURAL CONSUME TREATMENT EXCESS

32,250 m≥ 155,000 m≥

15,500 m≥ 113,750 m≥

Defu Industrial Park Part 2

New Agriculture Park

Tampines Industrial Park

TREATMENT EXCESS

New Agriculture Park

Defu Industrial Park Part 1

Paya Lebar Air Base Part 1

Chemical 41.0 ha 102,500 m≥ ≥ Remediation (A)

PHASE 1

33.7 ha 84,250 m≥

32.3ha 807,50m≥

C Chemical Remediation m (A)

28.2 ha 84,250 m≥

PHASE 2

8.2 ha 20,500 m≥

New Green Space (B)

4.5 ha 11,250 m≥

0 ha 0 m≥

82,000 m≥

Excess (A-B)

73,000 m≥

80,750m≥

Defu Industrial Park Part 2

TREATMENT EXCESS

155,000 m≥

N New Green Space (B)

4.5 ha 11,250 m≥

Excess (A-B)

33,000 m≥

New Edibale Garden Green Space New Agriculture New Green Space Treated Area Under-t reatment rAea Treated A rea

TREATMENT EXCESS

113,750 m≥

Tampines Industrial Park

Defu Industrial Park Part 1

Green Space

Paya Lebar Air Base Part 1

PHASE 1

New Green Space

PHASE 2

Under-t reatment rAea Treated A rea

5.2 ha 13000m≥

Treated Soil For Agriculture

5.5 ha 13750m≥

Treated Soil For Agriculture

10.3 ha 25750m≥

Agricultural Street Scape Formed

AGRICULTURAL CONSUME

25750 m≥

AGRICULTURAL CONSUME

26750 m≥

Mix-used Units New Agricultu re Treated A rea

43.7 ha h 102500 0 m≥ 9.4 ha a 23500 0 m≥

Chemical 19.3 ha Remediation (A) 48250 2 m≥ 5.2 ha Treated Soil For 13000m≥ New Green Agriculture 0 ha a Space (B) 0 m≥ m Excess (A-B)

85750 0 m≥

Green St reetscape

5.5 ha 13750m≥

48250m≥ 2

Chemical Remediation (A)

Agricultural Street Scape Formed

New Green Space (B) Excess (A-B)

26.2 ha 65500 m≥

Treated Soil For Agriculture

10.3 ha 25750m≥

0 ha 0 m≥

AGRICULTURAL CONSUME

65500m≥

TREATMENT EXCESS

65500 m≥

AGRICULTURAL CONSUME PAYA LEBAR TREATMENT EXCESS AIR BASE PART2

26750 m≥ 134000 m≥

PAYA LEBAR AIR BASE PART3

Mix-used Units New Space Agricultu re Green

Kakit Bukit Industrial Park

43.7 ha h 102500 0 m≥

25750 m≥

ed A rSpace ea NewTreat Green

Chemical Remediation PHASE 3 (A)

9.4 ha a 23500 0 m≥

New Green Space (B)

85750 0 m≥

Excess (A-B)

Green St reetscape

19.3 ha 48250 2 m≥ 0 ha a 0 m≥ m 48250m≥ 2

Chemical Remediation (A) New Green Space (B) Excess (A-B)

26.2 ha PHASE 65500 m≥ 0 ha 0 m≥ 65500m≥

4

Under-t reatment rAea Treated A rea

129

SOIL & FOOD PRODUCTION FLOW

130

131

SOIL RECYCLING SYSTEM

132

FOOD TRANSPORT SYSTEM

133

AGRICULTURE PARK SCENARIO

T he

agricultural park is in the original soil area , the soil is in good

condition and does not require additional treatment before being used for production.

The area used for production accounts for 80%. and combined The phytoremediation

high-tech agriculture and traditional agriculture.

area mainly uses the method of plant management to regenerate the fertility of the soil that has lost its fertility in the other part of the

Agriculture Park. At

the same time, the creation area in the agricultural

park enhances social participation and connection.

134

135

MIXED-USE UNIT SCENARIO

The

Mixed-use Unit is to serve the estate within 5 The production area in each Mixed-use Unit accounts for 70%. H igh - tech agriculture and traditional agriculture are combined. Compost centre and rainwater harvest provide Mixed-use Unit with fertilizer and water for agricultural production. Community committees increase connectivity and participation between communities, and the food court in the Mixed-use Unit uses agricultural products produced in the unit to achieve "field to table". main purpose of the

minutes of walking distance.

136

137

AGRICULTURE STREETSCAPE SCENARIO Module Furniture

S treetscape

agriculture is mainly used to serve the surrounding

communities and meet the daily needs of surrounding residents.

Part

of

the roof of the buildings next to the street is put into use and becomes roof farming.

The

soil used for planting comes from the clean soil after

remediation , and the rainwater harvesting device and compost center provide water and fertilizer for plant growth.

products be en produced along the streetscape.

138

Street

retail can sell the

139

AGRICULTURE INFRASTRUCTURE WEB PHASING

140

MASTER PLAN

141

DETAIL DESIGN: AGRICULTURE STREETSCAPE Module Furniture

142

DETAIL DESIGN: AGRICULTURE STREETSCAPE Soil boxes

24500m≥ Plantable soil develop

Recycable Soil

Agriculture in situ

Log i

Ind

ustr ial Ar

Treatment Facilities

Pay a-Le ba r

ea

A ir

-Ba se

st ore ngo o nF

Sera

stic sP a rk

Original Soil

Developing urban agriculture in non-ecological core areas

Recycable＆Treatable soil regenerated to plantable soil

Treatable Soil

12500m≥

Soil Regeneration

1CURRENTLY3◊1=3 ha

Plantable Soil

2 RENEWAL

Mix-used Units

29.5 ha

Agriculture Urbanism

rea cial A mer Com

Aqu

a-F ar m

Res ide

ntia l Ar

Streetscape

ea

Cor e

Hab i

tat

Agriculture Park

3 FUTURE 143

DETAIL DESIGN: AGRICULTURE PARK Detail Masterplan

144

DETAIL DESIGN: AGRICULTURE PARK Design Analysis

145

DETAIL DESIGN: AGRICULTURE PARK Perspective of Agriculture Farm

TEMPLATE FOR FULL PAGE GRAPHIC, USE OF SCALEBAR & LEGEND FOR APPROPRIATE PAGES; CAN BE DELETED IF NOT APPLICABLE. DESCRIPTIVE TEXT BOX CAN BE SHIFTED ACCORDING TO PLACEMENT ON GRAPHIC (THIS TEXT BOX TO BE DELETED)

Descriptive Text: Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

146

Legend

147

DETAIL DESIGN: AGRICULTURE PARK Perspective of Food Activity

TEMPLATE FOR FULL PAGE GRAPHIC, USE OF SCALEBAR & LEGEND FOR APPROPRIATE PAGES; CAN BE DELETED IF NOT APPLICABLE. DESCRIPTIVE TEXT BOX CAN BE SHIFTED ACCORDING TO PLACEMENT ON GRAPHIC (THIS TEXT BOX TO BE DELETED)

Descriptive Text: Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

148

149

DETAIL DESIGN: MIXED-USE UNIT Master Plan

M ixed - use U nit serves the surrounding community within a 15- minute walking radius .

Agricultural production is mainly to meet the needs of daily life. The products mainly include basic common vegetables and fruits.

I n addition to focusing on agricultural production , M ixed - use U nit also focuses on strengthening the connection between communities, which is different from Community Centre in the traditional sense. By participating in agricultural activities, community residents are more closely connected, and community functions are enriched.

Such Mixed-use Units are evenly distributed near each residential area group of PLAB, ensuring that each residential area of PLAB can be covered by the service scope of Mixeduse Unit, strengthening communication between communities, and enhancing the diversity of community activities.

150

DETAIL DESIGN: MIXED-USE UNIT Activities

151

DETAIL DESIGN: MIXED-USE UNIT Section

The

community committee reg

o r g a n i z e s a va r i e t y o f p l a n t - t

a c t i v i t i e s t o at t r a c t m o r e p e o

participate and strengthen the con between residents in the community.

152

A gricultural u l a r ly

themed

ople to

nnection

production provides the

community with the daily necessities of fresh vegetables and fruits.

Community

residents can pick agricultural products at their doorstep.

T he

food waste and potential extra

agricultural products generated by the community are degraded to provide the necessary fertilizer for planting.

153

DETAIL DESIGN: AGRICULTURE STREETSCAPE Section

154

155

DETAIL DESIGN: AGRICULTURE STREETSCAPE Module Furniture

156

DETAIL DESIGN: AGRICULTURE STREETSCAPE Soil boxes

157

DETAIL DESIGN: AGRICULTURE STREETSCAPE Perspective

158

159

CONCLUSION

160

161

162

MORE THAN BLUE INFRASTRUCTURE: COMMUNITY, NATURE, MEMORY

Hu Die, Lin Lan, Jin Zhuoyin

Water is always a vital resource for all humans, Singapore has been facing problems such as limited freshwater resources and over-reliance on imports. As a new town in the future, the increasing population in PLAB brings about increasing water demand, but the available water resources within the site are limited and depend on external water supply. In addition, PLAB was closely related to water in terms of production and living, but with waterways canalization, the relationship between people and water was estranged.

The project is aiming at maximizing the use of collected rainwater and greywater while transforming water management infrastructure into spatial landmarks to integrate the water system into people's daily life. Through innovative water management design, the following targets are: 1. Manage water quantity and quality while improving biodiversity and accessibility 2. Reconnect the relationship between humans and water 3. Shorten the process of wastewater transportation and reduce non-potable water reuse costs The project proposes a new framework for water management in future PLAB, which is more than blue infrastructure, but a whole new system linking ecological restoration, historical memory, and community life.

The design is divided into three strategies: 1. Improvement in rainwater harvesting capacity: Integrating the blue-green infrastructure network through constructed wetland system and WSUD elements 2. Interaction between people and water: Integrating blue infrastructure with community life & historical representation & ecological education in the linear runway park 3. Innovation in water treatment: Introducing decentralized wastewater treatment coupled with on-site, nonpotable water harvesting and purification devices By integrating the fragmented blue-green infrastructure to create a new blue-green network for the overall studio masterplan, the project enables the efficient management of water reuse and achieves the goal of resilience. While it tends to transform water management infrastructure into spatial landmarks to reconnect the relationship between humans and water, which echoes the studio’s goal of a happy model town.

163

BACKGROUND

Water Management Loop in Singapore

This graphic shows where water comes from and how sewage is treated and reused in the current water management loop in Singapore.

The shortage of this loop is, rainwater and waste water needs to be transported a long distance to the treatment plants through whether concrete drainages or underground pipes. This will increase the cost of water transportation to some extent.

164

BACKGROUND

Potential Water Demand & Supply in PLAB

Based on PLAB's future population, we calculated the future non-potable water demand and the potential supply of rainwater and grey water. According to the calculation, we find that the daily potential supply is about three times of the non-potable water demand, indicating that PLAB has great potential for rainwater and greywater reuse.

165

PRELIMINARY ANALYSIS Site Analysis

166

167

PRELIMINARY ANALYSIS History Analysis

168

169

PROPOSAL Overall Strategies

170

171

PROPOSAL Masterplan Process

172

173

PROPOSAL Masterplan

174

175

PROPOSAL

Relationship Between Human&Water

176

177

PROPOSAL

Water Management Toolbox

According to different water quality requirements of inlet and outlet water, we developed three water treatment processes.

178

179

DETAIL DESIGN | ECOLOGICAL PARK Treatment Tool Box

180

DETAIL DESIGN | ECOLOGICAL PARK Detail Plan

181

DETAIL DESIGN | ECOLOGICAL RUNWAY LINEAR PARK PARK Treatment Process & Activity Tool Box

182

183

DETAIL DESIGN | ECOLOGICAL PARK Rendering

184

DETAIL DESIGN | ECOLOGICAL PARK Rendering

185

DETAIL DESIGN | RUNWAY LINEAR PARK Treatment & Activity Tool Box

186

DETAIL DESIGN | RUNWAY LINEAR PARK Design Process

187

DETAIL DESIGN | RUNWAY LINEAR PARK Storyline

188

189

DETAIL DESIGN | RUNWAY LINEAR PARK Detail Plan

190

DETAIL DESIGN | RUNWAY LINEAR PARK Rendering

191

Rendering

192

DETAIL DESIGN | RUNWAY LINEAR PARK

193

DETAIL DESIGN | WATER TREATMENT DEVICE Water Harvesting & Purification Device Toolbox

Detail Plan Process

194

Detail Plan Type A is located in the bird corridor. After overlaping with the water flow map, the runoff intersection is found as the construction location of the device.

Type B is located in the open space at community plaza, which density is calculated according to the water demand of each block.

Type C is located in the community pocket park, the density of the device is depending on the scale of the area.

195

DETAIL DESIGN | WATER TREATMENT DEVICE Section & Renders

196

197

DETAIL DESIGN | WATER TREATMENT DEVICE Section & Renders

198

199

DETAIL DESIGN | WATER TREATMENT DEVICE Section & Renders

200

201

202

WATERSHED PROTECTION WITH AQUATIC ANIMALS

Janina Kwan, Sabrina Shafari, Xing Zhiyan

In over half a century, Singapore has experienced unprecedented growth. As a result, resource limitations and provision security have grown to become significant future challenges, where design is required to plan beyond the present and engage with future issues including climate change and threats to biodiversity. This project will show how this can be achieved through a watershed protection approach with aquatic animals. This approach will be integrated with a scenario-based framework, where a series of ecological strategies will responf to predicted trends in PLAB. Through strengthening the relationship between the watershed, biodiversity and people, residents wil achieve a happy & resilient community. In relation to the overall studio masterplan, this project will propose strategies that will work with one another and adapt to any current, ongoing and future scenarios, while providing support to other systems to shape PLAB into a Happy & Resilient Town of the future.

203

GROUP VISION

Achieving a Happy & Resilient Community

Resource Limitations and Provision Security are the biggest challenges PLAB will face with its coming development. Thus, design should engage with future unpredicatbility to form a resilient town with strong adaptability. The watershed protection approach with aquatic animals can be integrated with a scanriobased framework, where strategies will respond accordingly. By establishing a strong relationship between its watershed, biodiversity and people, PLAB will achieve a happy and resilient community.

204

PROJECT FOUNDATION Thought Process & Direction

The existing watershed has cultural & historical significance, with mangroves and fishing along Serangoon River. In the late 20th century, the river bank was the former Lorong Halus Dumping Ground landfill. Addtionally, the 3 main waterbodies in PLAB currently exhibit low and uneven species diversity for aquatic & non-aquatic fauna.

205

SITE ANALYSIS Water Sampling

Study of the current water quality conditions & observations show majority of the areas throughout PLAB were lacking in the ability to simultaneously cater to the watershed, people and biodiversity.

Successful watershed protection is currently at 94%. Our goal is to provide 100% successful watershed protection.

206

STUDIO MASTERPLAN Masterplan Site Considerations

Based on the analysis of proposed construction, demolition & establishment of soil bank, areas were identified with high risk of soil erosion & flooding that will affect the quality of PLAB's watershed.

Green spaces & proposed habitats were taken into consideration, due to their close relationship with waterbodies and its aquatic species to create a thriving & balanced ecosystem.

The future landuse & transportation network were used to identify areas that will have enhanced human-nature contact, watershed protection and ecological enhancement.

In conjunction with the studio masterplan, the project aims to work together and support it, achieving integration with by considering relevant strategies from other groups.

207

JOURNEY OF WATER

Relationship between Proposed Strategies

208

209

SCENARIO-BASED ISSUES Predicted & Addressed Issues

210

211

SCENARIO 1: MASTERPLAN PROGRESS Pollution

212

213

PROGRESSION RESPONSE Strategies Reponse to Pollution

214

215

WILDLIFE HABITATS Bioindicators & Typologies

Curated wildlife habitats will strengthen biodiversity & provide a reliable means of evaluation. Watershed inhabitants directly respond to their environment, where the choice of suitable flora & fauna species can help to identify & resolve issues. Across the different habitat typologies, there will be flexible species proposal to benefit the watershed, biodiversity & people.

Along Serangoon River, the Mangroves habitat will transition through 4 types: Mangroves, Back mangroves, Freshwater swamp forest and Freshwater riparian.

Source: https://www.researchgate.net/publication/268374524_The_present_extent_of_mangrove_forests_in_Singapore 216

WILDLIFE HABITATS

Species Selection & Program Integration

Programs integrated into these habitats will further strengthen the connection between people & biodiversity. It will provide valuable educational opportunitoes & support a lifestyle experience unique to the community.

217

TEMPORARY RICE FARM Ecosystem Services

218

TEMPORARY RICE FARM Site Distribution & Typologies

219

AGROFORESTRY Permaculture Approach

Agroforestry aims to reduce the over-reliance on imported food and establish a self-sustaining food supply for the future PLAB residents and Singapore.

In Phases 1 & 2, the farm reacts as the last process of treating polluted water by reducing nutrients in water runoff from construction & demolition areas before it reaches the Serangoon River Watershed.

A holistic approach to farm crops in a sustainable way, which achieves high yields and productivity.

220

AGROFORESTRY Functions & Benefits

221

SCENARIO 2: MASTERPLAN COMPLETION Happy Town Model

222

223

COMPLETION RESPONSE Strategies Reponse to a Happy Community

224

225

AQUACULTURE

Functions, Operations & Benefits

226

AQUACULTURE Programs

227

AGROFORESTRY Distribution & Overview

Agroforestry takes on a larger role during this stage of development in terms of food production and strengthening the relationship between people and nature. It will be done on 3 scales in different phases: Commercial, Neighbourhood and Residential.

228

AGROFORESTRY

Mixed-Use Residential & Programs

229

FOOD DISTRIBUTION NETWORK Movement of Food in Paya Lebar Airbase

230

231

SCENARIO 3: MASTERPLAN FUTURE Overwhelmed Systems

232

233

FUTURE RESPONSE

Strategies Reponse to Overhwhelmed Systems

234

235

WILDLIFE HABITATS Adaptation of Habitats

Source: https://www.jstor.org/stable/26233154#:~:text=Introduction.,the%20official%20record%20in%201929.

236

Source: https://www.shenghunglee.com/tetrapot, https://www.tredjenatur.dk/en/portfolio/climatetile/

237

AQUACULTURE & RICE FARMS Addtion & Functions of Water Sensors

238

239

FLOATING AGROFORESTRY Flooding Analysis

240

FLOATING AGROFORESTRY Adaptation & Benefits

241

242

REGENERATIVE PLAB CONCEPT MASTERPLAN GENERATION & NEGOTIATION PROCESS

STUDIO TWO | CYNTHIA WEE SU YI | CHANG WANRUO | SHI YILAN | CHAI XIN YI | MIRWANKAR ANCHITA NITIN | | WANG LIANGYU | ZHANG YUXI | XU RUOZHU | REN JUNYAO | CAO NAICHUN | CAO NAICHUN | | ZHOU SICONG | ZHAO MINGYU | JIANG RUOMIN | CHENG SIQI |

TUTOR: HWANG YUN HYE

243

RATING MAPS OF FOCUS TOPICS Process | Nature - Human

Co-Breathing with Soil

Seed D ispersal & Animals

244

Wildlife Economies

Nature as a Carbon Bank

Combined rating maps of 4 groups

245

CO-BREATHING WITH SOIL Improvement, permeability, interplay Permeability Permeability Issue Issue HighHigh

Insect Insect Habitat Habitat Suitablity Suitablity Based on temperature soil temperature vegetation Based on soil and and vegetation density density

Tampines Forest Tampines Forest

Suitable Suitable

Quarry Quarry

Permeability Permeability Issue Issue Permeability Issue PLAB Forest PLAB Forest

Insect Insect Habitat Habitat Suitablity Suitablity Insect Habitat Suitablity Based on soil and and vegetation Based on temperature soil temperature vegetation

Seragoon Forest Seragoon Forest

HighHigh High

Based on soil temperature and vegetation density density Unsuitable Unsuitable density

Seragoon Scrbland Seragoon Scrbland Tampines Forest Tampines Forest Tampines Forest Bedok Reservoir Bedok Reservoir Quarry Quarry Quarry Urban Green Urban Green Seragoon Forest Seragoon Forest Seragoon Forest Open Open Field, Field, PLAB Forest PLAB Forest Managed Managed Turf Turf PLAB Forest N o nN -voeng-e vScrbland et agbeScrbland lForest e t a b le Tampines Tampines Forest Seragoon Seragoon Pervious Pervious Surface Surface Seragoon Scrbland Quarry Quarry Bedok Reservoir Bedok Reservoir Impervious Impervious Surface Surface Bedok Reservoir Seragoon Seragoon Forest Forest Urban Green Urban Green Buildings Buildings Urban Green Open Open Field, Field, PLAB PLAB Forest Forest Open Field, Managed Managed Turf Turf Managed Turf Seragoon Seragoon Scrbland Scrbland No nN -voeng-e v et agbele t a b le NPervious o n -v eSurface g e tSurface a b le Pervious Bedok Bedok Reservoir Reservoir Pervious Surface Impervious Impervious Surface Surface Impervious Surface Urban Urban Green Green

Suitable Suitable Suitable

Permeability Permeability Issue Issue HighHigh

Insect Insect Habitat Habitat Suitablity Suitablity Based Based on soil on temperature soil temperature and and vegetation vegetation density density Unsuitable Unsuitable Unsuitable Suitable Suitable

TEMPLATE FOR FULL PAGE GRAPHIC, USE OF SCALEBAR & LEGEND FOR APPROPRIATE PAGES; CAN BE DELETED Water Water Flow Flow Mitigation Mitigation Slope Slope Analysis Analysis with with Hydrology Hydrology IF NOT APPLICABLE. DESCRIPTIVE TEXT BOX CAN BE SHIFTED ACCORDING TO Water Water Flow Flow Mitigation Mitigation Slope Slope Analysis Analysis Water Flow Mitigation Slope Analysis PLACEMENT ON GRAPHIC with with Hydrology Hydrology with Hydrology (THIS TEXT BOX TO BE DELETED)

Low Low

Low Low Low

Unsuitable Unsuitable

Buildings Buildings Open Open Field, Field, Buildings Managed Managed Turf Turf

No nN -voeng-e v et agbele t a b le Pervious Pervious Surface Surface

5

Impervious Impervious Surface Surface 0° 0°Low Low Buildings Buildings

Low Low

3

40° 40° HighHigh

5

Surface runoff Surface runoff Low Low 0° 0° Low of water 0°Direction Direction of water fl owfl ow

Slope Slope Analysis Analysis with with Hydrology Hydrology 40° 40°

Nature Nature 5

4

4

4

3 Human Human Nature Nature 5Nature 5 4

4

Water Water Flow Mitigation 3 Flow 3 Mitigation 5

40°HighHigh High Low Low 0° 0° Surface runoff Surface runoff Surface runoff Direction of water fl owfl ow Direction of water Direction of waterfl ow

4 3

3 Human Human Nature Nature Human 5 4 3 Human Human

40° 40° HighHigh Surface Surface runoff runoff Direction Direction of water of water fl owfl ow

Topo Topo Change Change Existing Existing contour contour lineslines

Urban Urban Pollutant Pollutant Issue Issue HighHigh

Fill Fill Cut Cut

Topo Topo Change Change Topo Change

food,paper food,paper

Metal,paper, Metal,paper, recycling recycling

Runway Runway

airplanes airplanes Urban Urban Pollutant Pollutant Issue Issue Urban Pollutant Issue Roads Roads

Existing Existing contour contour lineslines Existing contour lines Fill Fill Fill Cut Cut Cut

HighHigh High

Existing Existing contour contour lineslines

HighHigh

Topo Topo Change Change

Manufacture Manufacture Warehouse/ Warehouse/ Storage Storage

vehicular vehicular movements movements

Manufacture Manufacture food,paper food,paper Manufacture Airbase Airbase buildings buildings food,paper exhibition, exhibition, apronapron

Warehouse/ Warehouse/ Storage Storage

Metal,paper, Metal,paper, recycling recycling Metal Metal workshops workshops Warehouse/ Storage storage, storage, repairrepair Metal,paper, recycling

Runway Runway Urban Urban Pollutant Pollutant Issue Issue airplanes airplanes Runway Motor Motor repairs repairs airplanes

Fill Fill

LowLow

Cut Cut

car washing, car washing, repairs, repairs, spare spare parts parts Roads Roads Manufacture Manufacture vehicular vehicular movements movements Roads food,paper food,paper Private Private Ltd. Ltd. Companies Companies vehicular movements Airbase Airbase buildings buildings Construction, Construction, technology, technology, etc. etc. exhibition, exhibition, apron apron Warehouse/ Storage Warehouse/ Storage Airbase buildings Metal,paper, Metal,paper, recycling recycling exhibition, apron

Metal Metal workshops workshops Metal workshops Runway Runway

storage, storage, repairrepair storage, repair airplanes airplanes

Motor Motor repairs repairs Roads Roads car Motor washing, car washing, repairs, repairs, spare spare parts parts repairs vehicular vehicular movements movements car washing, repairs, spare parts

LowLow Low

Private Private Ltd. Ltd. Companies Companies Airbase buildings Airbase buildings exhibition, exhibition, apron apron Construction, Construction, technology, technology, etc. etc.

Private Ltd. Companies Construction, technology, etc.

Metal Metal workshops workshops

storage, storage, repairrepair

Motor repairs Motor repairs

car washing, car washing, repairs, repairs, spare spare parts parts

Private Companies Private Ltd. Ltd. Companies LowLow

246

Construction, Construction, technology, technology, etc. etc.

RATING MAPS Process Outcome

RATING MAP Nature

6

RATING MAP 5 RATING MAP Nature

Nature

4

6

RATING MAP

3 6

Nature

2 5

5

4 6

Human

3 5 2 4 1 3

Human Human

2

1 4 3 2 1

1 Human

The concept plan creates green connections within urban areas, improving urban area permea-bility. At the same time, topo changes in the forest and additional forest periphery prevent further erosion, allowing the opportunity for the soil ecosystem to thrive.

1,000 m

The concept plan creates green connections within urban areas, improving urban area permea-bility. At the same topoplan changes in the forest and additional prevent further allowing At The time, concept creates green connections withinforest urbanperiphery areas, improving urban erosion, area permea-bility. the opportunity for thetopo soilchanges ecosystem to thrive. the same time, in the forest and additional forest periphery prevent further erosion, allowing the opportunity for the soil ecosystem to thrive.

The concept plan creates green connections within urban areas, improving urban area permea-bility. At the same time, topo changes in the forest and additional forest periphery prevent further erosion, allowing the opportunity for the soil ecosystem to thrive.

247

TRAVEL GUIDE OF SEEDS Free-flow, soften, disperse

Hydraulic Layer (Nature Gr<upl

4

厂匕广U

勹贮书～如归 Mo”巳m论

＇ ，＇

，－

Ground Animals

lHL尸气七一

• ·260B

7A

·'`', ＿ ＿ 7A＿

＇ ，＇

． 飞己

，－

厂匕广U

勹贮书～如归 Mo”巳m论

GoondAnimalS

1

• ·260B

lHL尸气七一 1

匡 ＞＞

A __, 炉c.--A_ 巳一一·守C_ _-, ｀炉c.--__, --, 巳一一·守C_ __-, --,

DE WHICH NG GREEN IHAVE THE OST ERVING ES AND TO HAVE TIONAL PATCHES

i＿匕

匕， 气

I-

＿匕

匕， 气

TO iDECIDE WHERE TO DECIDE WHERE THE GREEN THE GREEN CONNECTIONS CONNECTIONS 1 SHOULD BE SHOULD BE

－臣／ －臣／

....」. .

....」. .

二二 函．＝

－

1

心

hC -l.4

-=-

“cm_,~

二二 函．＝

－

=

叩0-“ 心

匕

hC -l.4

“cm_,~

匕

＞＞ ＞＞ 叩0-“

,i

_

Contou, Map A心oal Animals Path Vegetation Density - G,ound Animals Path - Flying Anlmols Path

Conopy Loyer A心oal Animals Path

- Flying Anlmols Path

Insect Habitat Suitablity

Based on soil temperature and vegetation density High Tampines Forest Suitable

Based on soil temperature and vegetation density ＝ －毛－

Nature

Fragmentation

li

Quarry Seragoon Forest

-

-

Suitable

Buildings

一 l 心心··•

仁~J七

PLAB Forest

6A

｀－

Unsuitable

5

． 4

Seragoon Scrbland Bedok Reservoir

3

Urban Green Open Field, Managed Turf

Arbo,ealAmals

Impervious Surface Buildings

4

1

－

－

夕

巧

夕

。

－

－

NA

－

．

， 。 。

,.,

TO DECIDE WHICH EXISTING GREEN with Hydrology SPACES HAVE THE Low 0° MOST CONSERVING TO DECIDE WHICH EXISTING VALUES AND 40° GREEN SPACES HAVE THE MOST High WHERE Surface runoff CONSERVING VALUES AND WHERE TO TO HAVE Direction of waterfl ow ADDITIONAL HAVE ADDITIONAL GREEN PATCHES GREEN PATCHES

巧

248

日

尘；

GoondAnimalS

。

Human

丿 NA

3

..

， 。 。

4

,.,

NA

NA

Nature 5

overall Ecological Connection ., I •. _L ..．壮几J 一．寸L ｀补心

A

Human

Low

、

Traffic

一二 心．：，· 曰

一心一

2

Barrier Map

No n -v e g e t a b le Pervious Surface

Water Flow Mitigation Slope Analysis

Hydraulic Layer (Nature Gr<upl

- G,ound Animals Path

RATING MAP

Insect Habitat Suitablity Permeability Issue

Unsuitable

N

A

\Ij 动仿贮 E 勹俨

日

尘；

Ground Animals

GoondAnimalS Arbo,ealAmals

． 飞己

日

4

Barrier Map

bo,ealAmals

丿

尘；

lk亡·JL., ,

，

丿

..

厂L「U ..m§

上1，言、

．

．

N口扣·一·心 ．心

A

___

仁~J七

overall Ecological Connection ., I •. _L ..．壮几J 一．寸L ｀补心

A

Flying Animals ， ＇矗 1

..

lk亡·JL., ,

\Ij 动仿贮 E 勹俨

li ．

-

厂L「U ..m§

，

＝ －毛－

Connection Buildings overall EcologicalTraffic Fragmentation Traffic ., I ｀－ A ｀－ 一二 心．：，· 一二 心．：，· A A一 •. _L 曰 曰 l ..．壮几J 一心一 一心一 心心··• 一．寸L ｀补心

·'`', ＿ ＿ ＿

arrier Map

， ＇矗

仁~J七

上1，言、

1___

li -

一 l 心心··•

· ' ` ` `·` ` . '

＿ ＿ ＿

· ' ` ` `·` ` . '

＝ －毛－ Buildings

-

口扣·一·心 叩lK1r、长 .. 之6Q., ．心

Mo心e im记

口贮也一”“

．

叩lK1r、长 ..之6Q.,

Mo心e im记

口贮也一”“

agmentation

g Animals Arboreal Flyin Animals

Arboreal Animals

7A

_

Conopy Loyer

＿ ＿ 7A＿

Conopy Loyer Vegetation Density Hydraulic Layer (Nature Gr<upl

Vegetation Density Contou, Map

｛

｛

,i

ntou, Map

， 飞己 15 A __, ｀炉c.--巳一一·守C_ __-, --,

、

i＿匕

匕， 气

Water Flow Mitigation Nature 5 4

I-

....」. .

、

－

－臣／ 二二 函．＝

1

3 Human

－

心

-=-

“cm_,~

TO DECIDE WHERE THE GREEN CONNECTION SHOULD BE hC -l.4

－

匕

叩0-“

夕

15

TO DECID THE G CONNE SHOU －

－

＞

RATING MAPS Process Outcome

RATING MAP

＿ ＿＿ ＿

LEGEND

06 Nature

N

A

A

RATING MAP

N

A

05

LEGEND 04

06 Nature

03

05

02

［

N

04

01 Human 03 02 01 Human

［

匡 匡 ＞＞ ｛

＞＞

RATING MAP 口扣·一·心 ．心 上1，言、

6 5 4

lk亡·JL., ,

＿ ＿

LEGEND

N

A

\Ij 动仿贮 E 勹俨

Nature

厂L「U ..m§

，

___

RATING MAP

．

＿ ＿ ＿

· ' ` ` `·` ` . '

叩lK1r、长 ..之6Q.,

Flying Animals ， ＇矗 1

Mo心e im记

口贮也一”“

7A

Arboreal Animals

厂匕广U

• ·260B

1

lHL尸气七一

05 04 03

［

01 Human

7A

＇ ，＇

·'`', ＿ ＿ ＿

勹贮书～如归 Mo”巳m论

A

02

3 2 Ground Animals

06 Nature

N

1

Human

匡 ＞＞

DE WHERE GREEN ECTIONS ULD BE

夕

－

－

夕

＞＞

FREE FLOW FINE GRATE A心oal Animals Path

- G,ound Animals Path

- Flying Anlmols Path

249

STAND BY WILDLIFE Negotiate, Diffuse, Appreciate

250

RATING MAPS Process Outcome

251

NATURE AS A CARBON BANK

Nature as a Carbon Bank Restore, transfer, capture

Process

252

253

PRODUCTIVE LANDSCAPE BUSINESSES

Develop, improve, engage

­

­

­

­

­

­

­

­

­

­

­

­

­

­

­

­

254

255

STUDIO CONCEPT PLAN PROCESS Negotiation

256

257

STUDIO CONCEPT PLAN

Overlap of rating and negotiation process

Concept plan is the overlapping of the rating maps of the four nature-focused groups to understand the different degrees from nature to the human area and negotiation between the nature and built environment on 3 main topics which are green & blue distribution, road systems and buildings to achieve overarching studio vision “regenerative plab”.

258

259

CONSTRUCTION TIMELINE Site Intervention and Phasing

­

­

260

­

­

­

261

POTENTIAL INTERVENTION AREAS

­

262

Issues and Strategies

­

263

264

REGENERATIVE PLAB

MASTERPLAN

CONCEPT TOPIC OF FOCUS

CP-BREATHING WITH SOIL

SEED DISPERSAL AND ANIMAL

­

MOVEMENTS

NATURE

AS CARBON BANK

ECONOMIES

WILDLIFE

­

PRODUCTIVE LANDSCAPE BUSINESSES

­

­

­

265

Healthy soilsrea ali ve！Home

to 90% of all rganisms o that live on ea rth.

But soil is ften o

neglected.

W ater Purification and soil contaminant reduction.

Carbon Sequestration Co 2

Su rface R uno ff

Con tanmination Exchange

Living soil isfor...

Flood R egulation

C

N utrient y Ccling

Climate R egulation H 2o A bsorb radiation

N

Provision of food and fibre

Cultural Heritage

P

S

Foundation of human infrastructure

Provide Habi tat for a widerange of bene ficialrganisms o

266

Co 2

O3

CO-BREATHING WITH SOIL IMPROVEMENT, PERMEABILITY, INTERPLAY

Anchita Nitin Mirwankar, Cao Naichun, Zhou Sicong

Is soil really that important? The answer is usually yes, as mentioned in the textbook. But beyond book knowledge, people don't necessarily consider soil to be an important part of our lives, and they tend to ignore or dislike its existence.

In fact, as important as water and trees, soil is a key component of ecosystems and human life. Its importance is manifested in many ways, such as providing habitat for a wide range of beneficial organisms, as the foundation of human infrastructure, etc. All life on Earth depends on healthy, viable soil, which means we can only have a good life if we have good soil.

However, the soil conditions in Paya Lebar are not ideal. The results showed that there were three main problems with the soils on site, land-use change leading to surface degradation, reduced permeability, and negative perceptions of "dirt" and insects. First, drastic land-use changes have led to the deterioration of soils and their biodiversity, with some soils containing more pollutants and higher soil compaction. Second, excessive growth in infrastructure, urbanization, and human activity affects permeability and soil life, and creates a disconnect between surface and subsurface relationships.

Finally, while insects have proven to have many benefits for soils and ecosystems, the distribution of insects has changed as the physical gap between cities and natural areas has grown, leading to a long-standing psychological fear of insects. The invisibility of soils in daily life also arouses people's unfamiliarity with soils, seeing them as dirt.

Therefore, in response to these issues, we propose a strategy, divided into three parts, to revitalize soil quality, allow soil to breathe, and allow humans to breathe with soil. The strategy consists of four sequential actions, starting with soil movement (providing a healthy soil base), habitat improvement (initiating natural regeneration), soil treatment (providing further sustainable improvement), and final action, human interplay (providing participatory maintain).

After completing the first cycle, improvements in soil quality, permeability and diversity will be achieved. The follow-up system will provide continuous soil improvement support for Paya Lebar, and is expected to achieve a stable, sustainable, regenerative cycle, and ultimately realize the co-respiration of people and soil.

267

ISSUE I: DEGRADED LAND SURFACE Issue statement

1819

1945

1958

Rubber and coconut tree cultivation and quarry excavation

Rich in ecological habitats

1987

1974

Grassland along PLAB run way and land use and quarry expansion

1966

Introduction of pollutive landuse like landfill and sewage works

2002

2010

Increase in scrubland, low cultivation and reduction quarry

Cutting of existing ecosystem to expand

Expansion of industrial land use

2022

Qurry turned to waterbody, low cultivation to tree cultivation , rivers and stream canalised

Forest

Tree cultivation

Sand/Mud

Water body

Grassland

Low cultivation

Mangroves

Quary

Scrubland

Public parks

Swamp forest

Site boundary

Introduction of landfill, managed greens, land use and existing ecology converted to secondary forest

1 km

Over the years, land in PLAB have gone through various change in land use like tree cultivation, landfill, quarry excavation, grassland, built infrastructure. This drastic change has deteriorated the richness of ecosystem and biodiversity having pollutants and high compaction in soil.

Source: https://libmaps.nus.edu.sg/ , PLAB: RESEARCH REPORT 268

SOIL CLASSIFICATION Compacted soil Compacted soil(open fields) In soil classification Soil life Less soil life Soil life reduced as compaction increased because of built areas and landfill

Inorganic soil Organic soil Forest soil Reclaimed land

BUILT AREA

603.50 ha 32.29 % In built spaces Permeable areas Polluted area Built areas increased NPK nutrients in soil and reduced permeability.

Buildings

Paved areas Roads Industrial zone PLAB Airebase zone

MANAGED GREENS

140.25 ha 7.5 % Managed ecosystem High biodiversity Low diversity Maintained organic soil green areas with less biodiversity.

Streetscape greenery Public and private parks

UNMANAGED GREENS

591.55 ha 31.64 % New ecosystem High diversity Low diversity Loss of existing forest and mangroves leading to new ecosystem.

Secondary dense forest Young Secondary forest Scrubland Secondary forest + Scrubland

WATER BODIES

122 ha 6.53% Ecosystem + Water permeability High Low Canalised stream, quarry turned water body changed ecosystem and reduced permeability.

Bedok Reservoir Tampines quarry Seragoon river

SITE

1869.8 ha Diverse ecosystem Good soil Degraded soil

The existing site have high pollutant zone, high soil compaction and prominent change in ecosystem leading to poor soil quality and life.The newly habitat emerged are secondary forest and scrubland thriving on poor quality of soil leaving behind rich habits like mangroves, low swamp forest. Currently, over 65 % of soil is has lost its quality and life.

269

ISSUE II: LESS PERMEABILITY Issue statement

Cd Pb P

Cd Pb P

- Compacted Surface - Pollution - Compacted Surface - Pollution

PERMEABILITY

HIGH PERMEABILITY

HIGH

Tampines Forest Tampines Forest

Seragoon Forest Seragoon PLAB Forest Forest

PLAB Forest

- Inorganic Sandpile

- Inorganic Sandpile

F rmatio n Kal lang Fo Non-vegetated Pervious Surface Non-vegetated Impervious Pervious Surface Surface Impervious Buildings Surface

Seragoon Scrubland Seragoon Bedok Scrubland Reservoir Bedok Urban Green Reservoir

Urban OpenGreen Field, Mangaged Turf Open Field, Mangaged Turf

LOW

F rmatio n Kal lang Fo

Old Alluvium [80.08%] Old Alluvium [80.08%]

Buildings

Bukit Timah Granite

LOW

Bukit Timah Granite

Sandy Loam

Sandy Loam

Sandy Loam

Sandy Loam

Loamy Sand

Loamy Sand

Sandy Loam

Sandy Loam

Permeability analysis displayed high percentage of impervious surface in urban area. Nature area based on location, some proved to have poorer porosity which may cause damage to root growth and underground communities.

Source: PLAB Research Report; Geology of Singapore; Geological and geotechnical features of Singapore: an overview 270

Sandy Clay Loam

Sandy Clay Loam

Sandy Clay Loam

Sandy Clay Loam

- Lower Moisture Con High Soil Permeability - Lower Conte - InsectMoisture Larvae Dama High Soil Permeability - Insect Larvae Damag

ntent+ y age

2+ Ca a2+

P K+

IDEAL

- High Bulk Density - High Potassium

Ca a2+ K+

- High pH - High Calcium

K

+

P

P

Ca22+ C

Ca2+

- Low pH - Higher Soil Permeability

- Lower Moisture Content + High Soil Permeability - High Calcium

271

BENEFICIAL EFFECT OF INSECT

272

273

ISSUE III & ISSUE SUMMARY Bad perception of insects & soil

Issue Summary

Source: https://www.inaturalist.org/observations?place_id=any&subview=map 274

275

POTENTIAL AREA & VISION & STRATEGY

Vision & Strategy

276

Intervention Area

277

ACTION I: SOIL MOVEMENT Some part of forest area is replaced for proposed infrastructure and this soil which is high in fertility, soil life and less compacted is inserted in existing compacted built areas to increase permeability and soil quality.

The forest soil is divided into 2 types soil : 1.Type A which is a mixture of topsoil and crushed trees is inserted as base for proposed core vegetation.

2.Type B is subsoil and parent rock used as base for recreational areas and streetscapes.

Type C is crushed concrete powder is used for paver block production in hardscape areas as permeable material.

The volume obtained from the cutting for all soil types is used within the site.

Tree crusher

Combination of forest area

Why Seco

1 km

Legend Cut of Forest soil Cut of Concrete canal Soil type A Soil type B

Proposed habita

Soil type C

Secondary forest Type A and B soil

Proposed habitat

Recreational park

Paved pathway

SECTION THROUGH SOIL T Top soil layer

278

0.3 m depth

Sub soil layer

1.20 -1.50 m depth

SOIL TYPE A

SOIL TYPE B

SOIL TYPE C

Concrete crusher

n of top soil and powder of crushed trees a

Combination of sub soil and parent rock

134500 m3

ondary forest soil ?

530000 m3 1. Highly fertile

675000 m3 2.Less compacted soil

d Tree y pit

Tree pit

3.High soil life

Paved area in residential zone

Recreational park at residential area

at

Crushed concrete powder recycled to use paver blocks

Paved pathway

Tree pit

Residential building Tree pit

Concrete canal

TYPOLOGY AND ITíS MOVEMENT Parent rock layer Top below 1.500.3m m depthConcrete Soil Layer

Vegetation Sub Soil Layer 1.2m-1.5m depthPaving

Parent Rock Layer below 1.5m

Concrete

279

ACTION II: HABITAT ENHANCEMENT Natural Scenarios

Source: https://doi.org/10.1007/s10530-006-9024-6 280

281

ACTION II: HABITAT ENHANCEMENT Urban Scenarios

Urban scenarios mainly deal with two issues, polluted soft-scape, and impervious surface.

Source: https://www.nparks.gov.sg/FloraFaunaWeb 282

283

ACTION III: TECHNIQUES TO IMPROVE SOIL LIFE AND QUALITY ORGANIC WASTE TREATMENT PROCESS

PHYTOREMEDIATION

species that can absorb contamination

Plant / Transplant

AREATION

Compacted soil with shallow weak roots

Before Areation

Phytoremediation

Reap / Collection

MULCHING Nutrients, water, air can now enter soil

After Core Removal

Increased density

Diameter at least 3 fee Depth 1-3 i

6-8 Weeks Later

Source: https://www.towardszerowaste.gov.sg/foodwaste/, https://www.straitstimes.com/singapore/environment/project-using-black-soldier-flies-to 284

As Singapore has increased their percentage by 20% in food waste, use of organic waste in site to create compost then organic fertilizer is one of the ways to build soil structure, increase water holding capacity and provide a valuable source of micronutrients to plants. Macro level and micro level methods are used to create organic fertilizers.

Other techniques like Phytoremediation, Aeration are applied in particular areas highlighted in masterplan.

Mulching is a common technique to be used for forest and urban greenspaces.

Collection of organic food waste to the treatment centres.

t et inches

1 km

Micro level treatment process : compost bins, insect hotels and collection points of excess organic waste

o-break-down-food-waste-set-to-expand-in

Macro level treatment process: Aerobic and insect bioconversion facility

285

ACTION IV: HUMAN NATURE INTERPLAY

Insect hotel Motorbike trail Mud play

Soil Research center

Insect Farming

Insect & Soil App Insect Addition Name: Character: Soil Type

MotorbikeTra Insect + Soil

Seragoon Forest

Seragoon scrubland

Elevated walkway in Freshwater swamp forest

Insect hotel and composting

286

The main focus of human activity is to develop insect soil friendly relationship with human by changing modular living in Singapore. Encouraging participation for all age groups in activities like composting, insect towers in micro level neighborhood scale and macro site activities like trails connecting proposed and existing habitat, mud play, offroad biking, outdoor learning spaces, research centers and organic waste treatment to create organic fertilizer and insect soil education.

Compost making

Elevated pathways Community gardening

Nature play

Heritage building Outdoor learning

Forest Walk

Legend Residenial zone Commercial zone Conserved zone Habitat trail Motorbike track Forest walk

ail

Elevated walkway in Freshwater swamp frest Food waste treatment 1. Aerobic compost treatment 2. Insect bioconversion

Forest Walk

Tampines Quary

Reserach and education centre

Bedok reservoir

Community enagement 1. Insect hostels 2. Compost making 3.Gardening

Secondary forest

Naturalised canal

500m

Museum and Research Centre

287

MASTERPLAN

SITE I

SITE II

288

GOOD SOIL - GOOD LIFE Achievement

ORGANIC FERTILIZER

PAVEMENT

CONCRETE GARDEN

FOOD WASTE TREATMENT

PERMEABLE SURFACE

INFRASTRUCTURE SUPPORT

PERMEABLE SOFTSCAPE

IL QU A SO

CO-BREATHING WITH SOIL

TY LI BI

COMMUNITY GARDENS

POLLUTION REMDIATION

EA

VEGETATION

RM

LI TY

PE

TO HOMES

URBAN SOFTSCAPE PEST CONTROL

INSECT FARMING

HUMAN

PARTICIPATION

D IV E R SIT Y

HABITAT

RENEGERATION

WATER RELATED

EARTHWORM

RECREATION

EDUCATION

NATURAL INFILTRATION

ASSISTED NATURE SPECIES DIVERSITY

Through design we achieve an interrelated circulation which allows co-breathing with soil possible. Infrastructure including food waste treatment, permeable surface, function as support system. Habitat, the regeneration system and human, the participatory maintenance system. Through the mutual support and cooperation of these three systems, the improvement of soil quality, permeability and diversity is achieved, and a stable, sustainable and regenerative cycle is expected to be realized.

289

SITE I: SITE ANALYSIS

290

291

SITE I: SOIL MOVEMENT Action I

Given the proposed cross-slope adjustment of the road, the existing terrain required soil movement to connect the sides of the road for pedestrians and natural water flow.

292

293

SITE I: HABITAT EVOLUTIONS Action II + III

Source: Liu, T. et al., 2021. https://doi.org/10.3389/fevo.2021.643994 294

295

SITE I: HUMAN NATURE INTERPLAY

Proposed Type of bikin

Action IV

After movement of soil and naturalizing the canal, the intention of proposing human activities in this site is connect to develop awareness and attraction for mud play activities by connecting existing biking in Tampines forest to urban space and by connecting forest walk to proposed walkway along canal by proposing under road construction for seamless connection to increase soil insect interaction.

A

Zig Zag track Slope : 17 ∞ Disturbance : Zig zag tra Degree of Disturbance :

Canal

4

5 5

1

6

2

A’

Existing road

3

The slope is gradual with erosion.

6

Heritage building

Legend Mud trail Plank road track Zig zag slope track Deck track

Pedestrian walkway connects forest trail

Plank road track Slope : 0∞ Disturbance : Think wo above the ground Degree of Disturbance

Plank above ground av disturbance to soil.

Forest trail Nature play

Naturalized stream Under road connection Existing buildings

Tampines Forest

1.

2.

3.

4.

5.

6.

Mud play Sand pit Butterfly garden Stepped seatings Lawn Recreational ground

Trail connecting to existing biking zone.

100 m

Master Plan for Site 2 Zig zag slope biking track

Under road connection Spider bridges for moto pedestrian

Allows to continue fores water front pedestrian w motor bike trail to conne trails and to guide water

Deck track Fresh water naturalized canal

Section AAí 296

ng tracks

ack in slope :ag track in slope nce : h to avoid soil al with to avoid soil

Zig zag slope biking Zig zag slope biking

ooden plank k wooden plank

: ance :

voids nd avoids .

Plank road track biking Plank road track biking

ction motor biking and or biking and

forest trail to connect st trail to connect rian walkway, existing walkway, existing connect proposed ect proposed water to the canal. r to the canal.

Mudplay for children Mudplay for children

Pedestrian walkway

Lawn

Pedestrian walkway

Road

297

SITE II: ISSUE ANALYSIS WAREHOUSE/ STORAGE FACILITY

Debris and items over planting leading to disturbance to soil life.

Manufacturer Warehouse / Storage Roads Metal Workshop Motor Repairs Private Companies Site Boundary

The vegetation observed is sparse due to compacted soil and poor soil quality.

EXISTING BUILT The landuse in site 2 is Industrial zone. Pollutants and excess built have compacted the soil, reduced soil life. The hardscape material reduces water permeability.

BUFFER PLANTATION BETWEEN ROAD AND INDISTRIAL AREA

Only human activity observed is pedestrial walkway GREEN PATCH WITHIN BUILT SPACES

Trees Site Boundary

EXISTING GREENSPACES The ratio of green spaces with built area in site 2 is very low. Due to excess built permeabilty is less and pollutants are high in soil. The planting thrive on poor quality of soil.

298

Green spaces acquired by storage leading to compacted soil, and soil life less planting.

As per analysis, the existing land use of site is industrial zone having pollutants, compaction, and poor quality of soil with sparse green spaces leading to less permeability.

SITE II: MASTER PLAN

Legend Soil type B Human soil insect interplay Soil type C Permeable paving (grass pavers) Recreational space Planting cracks on existing road Car parking with permeable hardscape Proposed buildings Vehicular connectivity Pedestrian pathway connectivity

100 m The site is designed for residential land use, community engagement spaces and car parking. Recreational spaces include some

Site 2 Master Layout existingPlan concrete roads which do not require demolition are retained and converted into concrete by planting cracks.

0 gardens 25 100 m Proposed permeable hardscape and softscapes with sustainable human activities helps soil breathe.

299

SITE II PERMEABILITY

In the hardscape area, we add softscape patches and use permeable surface to improve permeability.

We

import soil type

B

and mix it with compost and garden soil to make soil mixture which be filled in original pit or spread on

the top of existing soil.

Source:https://landezine.com/texture-by-studio-basta-and-wagon-landscaping/

https://landezine.com/asphalt-jungle-paris-by-wagon-landscaping/

300

301

SITE II: ECOLOGY Action II

Source:https://www.weforum.org/agenda/2021/11/this-insect-could-eliminate-food-waste-in-cities/ https://www.nparks.gov.sg/FloraFaunaWeb

302

303

SITE II: ACTIVITY Action III + IV

Waste Treatment Process

Food

waste are collected from the residential buildings , then taken to

the community space to make compost, the compost will be distributed on streetscape and in void deck to maintain the soil condition.

Source: https://www.gooood.cn/urban-beehive-project-by-nine-yards-studio.htm

304

Community Space In community space, there will be more interaction between humans and insects through activities like outdoor class and insect treasure hunt.

Streetscape In Streetscape, more soft scape with various plant species and some bare land will help to attract insects and bring fun to people's street journey.

305

306

TRAVEL GUIDE OF SEEDS Seed Dispersal and Animal Movements: Free-Flow, Soften, Disperse

Xu Ruozhu, Chang Wanruo, Shi Yilan

BACKGROUND OF THE TOPIC; WHY IS IT A TOPIC OF IMPORTANCE PLAB is an area among the most critical ecological patches and corridors in Singapore, taking a significant role in ecological connection with the potential to be an indispensable stepping stone in animal flow. Seed dispersal is one of the critical fundaments of establishing such a stepping stone. To improve the seed distribution both on a national and site scale, we focused on increasing animal movement by creating suitable and diversified habitats. And once the green connections are formed, a self-generative PLAB landscape will be established.

The topic is significant in maintaining core wildlife habitats within the urban setting and discussing the potential of creating a self-generative landscape in a high-density urban environment in the long term.

VISION As the primary dispersal method for this project, Wildlife movements provide great potential for long-term sustainable biodiversity development and promote PLAB as a critical ecological stepping stone on a larger scale. Our vision is to create nature-driven urban planning which prioritizes wildlife movements. It will promote a self-sustainable food system and opportunities for spontaneous landscapes in the long run.

CONCEPT & METHODOLOGY OF THE PROPOSAL The identified issues on-site regarding our topic include lacking connectivity among green patches and existing hardscape structures that create barriers to animal movements, which is the key to seed dispersal. Targeting those issues, we concluded our concept of Self-Generative Landscape that focuses on Free-Flow, Soften, and Disperse. We utilized strategies from Spatial, Experiential, and Self-generative aspects. Strategies include - a) Spatial: Utilize topo and natural/manmade structures to create continuous linkage for both humans and animals. b) Experiential: Soften barriers at where human and animal movements intersect. c) Self-generative: Create diversified habitat and complexed patches through seed dispersal. We applied the three strategies from the PLAB scale to one selected site scale as an example to showcase the feasibility of our strategies.

CONCLUSION; HOW DOES THIS CONTRIBUTE TO THE OVERALL STUDIO MASTERPLAN Based on the above strategies, we determined the core forest area needed to maintain the biodiversity of the site and the extent of the core movement paths required by the animals, which also influenced and implemented in our overall studio masterplan. Through the natural process and human interventions, we maximize patch connections and also ensure the free flow of animals, and increase the seed dispersal range on site. Ultimately, we achieved the goal of improving PLAB's ecological connections and patch complexity on both macro and micro scales through human intervention at the early stages, then transforming it into a selfgenerative landscape in later stages once all planned connections are established. And creating a community environment where people and animals co-exist harmoniously.

307

ECOLOGICAL SIGNIFICANCE OF PLAB Determination of Ecological Networks

Legend Central Catchment Nature Reserve Least-resistance corridors Tengeh Reservoir Sungei Buloh Wetland Reserve Pulau Ubin Chingi Labrador Park Singapore’s vision - evolve Singapore into a biophilic city in a garden so that it could help mitigate the effects of urban air pollution and have a healthier living environment.

One of the large-scale planning strategies - to further build up the resilience of the urban system by enhancing ecological connectivity across the island.

The map above shows the projected ecological networks that animals are likely to use. The PLAB site, highlighted in red, situated within the identified corridors, also becomes a vital part of the overall greenery linkage connecting the fauna habitats from the northeast and southeast corner (Er, 2018).

Source: Er, K. (2018). Growing a Biophilic City in a Garden. CSC. https://www.csc.gov.sg/articles/growing-a-biophilic-city-in-agarden PLAB: RESEARCH REPORT. (2021). National University of Singapore.

308

5 km A preliminary evaluation is conducted to understand our site condition in a bigger context. And as the map above shows, the discontinuous green spaces in PLAB are causing barriers along our site boundary and within our site, limiting animals from moving in and around.

More specifically, area type A generally has higher existing vegetation density and coverage. Vegetation in the rest of the area (type B) is relatively scattered or urbanized. Therefore, when planning for future ecological layouts, the connections within area B and between A and B need to be further strengthened.

Legend Reptiles Mammals Birds Butterflies Vegetation Water

309

EXISTING SPECIES, PREFERRED HABITATS & FOOD RESOURCES

Research on PLAB flora and fauna includes typical animal species and vegetation. The information of seed size, dispersal methods and food resource condition is also illustrated. Five habitat observed in the site include streetscape, mangroves, urban parks, secondary forests and scrubland. The animal activity height ranges along with tree canopy height are demonstrated to show their relationship Source : NParks website 310

311

SEED DISPERSAL METHODS Background Information

Arboreal & Grou

Existing Wind Directions and Surface Flowing Directions Legend Water Flowing Directions Wind Directions Site Boundary Controlling Factors Wind Dispersal

Water Dispersal

Current Fauna Map Legend Birds Banded Surili Dusky Leaf Monkey Secondary Forest Scrubland Roadside Green Roads Paved Park

Finlayson’s Squirrel Long-tailed Macaque Plantain Squirrel Raffles’ Banded Langur Snooth-coated Otter Waterbodies Open Field Buildings Green Space Secondary Froest & Scrubland

1 km The seed has three main dispersal methods: wind, water, and animals. The wind on-site comes from all directions and has too many varieties, so it will not be considered for this project. Animal dispersal will be the primary planning approach, while the water on-site can help with animal movements when further water connections are developed.

Source: PLAB: RESEARCH REPORT. (2021). National University of Singapore.

312

ESTIMATION OF ANIMAL MOVEMENT ROUTES AND SEED DISPERSAL RANGE

und Animals

Flying Animals

Banded Leaf Monkey Macaque

Lesser short nosed inferred spots

fruit bat

recorded animal spots

Olive-backed

Plantain

squirrel

Wild boar

inferred spots recorded animal spots

sunbird

Pink Necked Green Pigeon Scaly breasted munia

Existing Seed Dispersal Range Scrubland and sparse woodland：Plantain squirrel

Grass and shrubs: Scaly breasted munia

High density forest: Forest birds, Primate, Fruit Bats

From this figure, it can be seen that some spots in urban areas that are not being covered and disconnected.

And when future development comes in, we need to keep such coverage as much as possible by conserving the most valued patches and increasing ecological connectivity.

1500 m 1. Kitamura, S. (2011). Frugivory and seed dispersal by hornbills (Bucerotidae) in tropical forests. Acta Oecologica, 37(6), 531–541. https://doi.org/10.1016/ j.actao.2011.01.015 2. Flora Fauna Web. (n.d.). FLORA & FAUNA WEB. https://www.nparks.gov.sg/florafaunaweb3.

3. ADW: Search ADW. (n.d.). Animal Diversity Web. https://animaldiversity.org/search/?q=Viverra+tangalunga&feature=INFORMATION 4.LSM4254 - Principles of Taxonomy and Systematics: Species Pages on the Biodiversity of Singapore - Taxo4254 - Wiki.nus. (2020, October 6). Principles of Taxonomy and Systematics: Species Pages on the Biodiversity of Singapore. https://wiki.nus.edu.sg/display/TAX/LSM4254+5.Tsuji, Y., & Su, H. H. (2018). Macaques as Seed Dispersal Agents in Asian Forests: A Review. International Journal of Primatology, 39(3), 356–376. https:// doi.org/10.1007/s10764-018-0045-7

313

SITE CONDITIONS ANALYSIS

Natural connectivity is influenced by vegetation density canopy layer. With these information, we could tell the potential area to be future core protected areas. With the awareness that fragmentation, building density and traffic condition can affect the natural connectivity, we overlapped the information to arrive the barrier maps.

Vegetation Density

Contour Map

The area with the highest vegetation coverage and denser topographic changes has higher biodiversity potential. Therefore, the darker and highlighted area can potentially be selected as the core forest area.

Fragmentation

314

Buildings

Fragmented

Low Density

Continuous

High Density

Canopy Layer

Hydraulic Layer (Nature Group)

From the tree canopy distribution map, we can see that some areas lack canopy connectivity, especially the blank space in the center of the field, which hinders the movement of animals, especially arboreal animals in the field.

Traffic

According to the living habits of animals, the surface runoff of the site has a high probability of becoming their main movement corridors and habitats.

Site Photos to show examples of barriers

1000 m

The degree of fragmentation of each patch, the density of buildings and the width of the road network will determine how much each regional boundary hinders different species.

315

BARRIER MAPS Arboreal Animals

Ground Animals

The barrier maps are divided by 3 animal groups: arboreal animals, ground animals and flying animals. There are landscape elements related like fences, greenery and construction condition affecting natural connection in PLAB. We evaluated the connectivity condition of PLAB and illustrate from red to blue.

316

Flying Animals

Legend

The barrier conditions are influenced by fragmentation, building density, traffic condition and vegetation density. Taking these conditions into consideration, we get the result of barrier map to determine the areas to preserve and barriers that require strategies to soften them.

317

PROCESS OF STRATEGIC PLAN GENERATION From Disconnected Patches To Ecological Web Conserved Patches Concluded from the previous pages of study on existing conditions of our site with our targeted animal types, now that we have the patches we want to keep, we then need to decide where the green connections should be.

Least-Cost Paths With the least cost path tool in ArcGIS, we put in the moving time for the three animal types to go through each landuse; we calculated and got the outcomes of the most direct paths (or least-cost path) for them to use.

Ground Animals

Strategic Plan

Arboreal Animals

Major Connections Following this result, we overlaid the least-cost paths on top of our conserved patches layout, and in consideration of the overall PLAB ecological connection conditions; we identified the major connections to form a better-connected system to strengthen PLAB's role in the overall context.

Ecological Web In the final ecological web layout, we aim to allow the animals' free flow, so a more interconnected ecological system is formed so that it ultimately helps the dispersal process to achieve the selfgenerative purposes.

Flying Animals

Conserved Patches

Least-Cost Paths

318

Major Connections

Legend

1 km Ecological Web Our proposed strategic layout shows that it is now linking with the adjacent corridors so that animals can move in and out of our PLAB site easily through core forests and nature parks.

It is also well connected within our PLAB site through riverscapes, community corridors, and streetscapes to allow arboreal and flying animals' free-flowing mode.

319

COMPARISON OF BARRIER MAPS Arboreal Animals Before

After

Ground Animals Before

After

FlyingAnimals Before

After

Actions taken to soften the barriers: Connecting the significant green patches together, reduce the fragmentation of PLAB Adding ecological corridors between the patches, maintaining the movement paths Lowering down some buildings with green rooftops added Improving water front habitat as important movement corridors 320

1 km

COMPARISON OF LEAST-COST PATH Before and After of Proposed Layout Before

After

Legend

1 km

What's Changed Reduced barriers within large core forests for ground animals to thrive without making too much travel to other patches.

Smaller patches used by arboreal and flying animals were added along the edge of our site to place PLAB in a better-connected ecological linkage in the bigger scale.

Within our PLAB site, additional green patches and corridors allows the arboreal and flying animal movements start to free flow.

321

HABITAT TYPES AND ASSOCIATED FAUNA SPECIES The habitats of the different animals in the site and the types and ranges of seeds they can disperse. These determine where target animals tend to feed and where they can disperse these seeds.

Cave nectar bat

Long-tailed macaque

Common Palm Civet

Cave nectar bat

Secondary Forest

Urbanised Area & Green Roof Top

Asian Koel

Urban Park

Eco-Link

Source :FLORA & FAUNA WEB LSM4254 - Principles of Taxonomy and Systematics: Species Pages on the Biodiversity of Singapore - Taxo4254 - Wiki.nus. (2020, October 6). Principles of Taxonomy and Systematics: Species Pages on the Biodiversity of Singapore. https://wiki.nus.edu.sg/ display/TAX/LSM4254+322

Yellow vented bulbul

p

Lesser Dog-faced Fruit Bat

Waterfront Scrubland

Plantain squirrel

Oriental pied hornbill

Seed dispersal distance Fauna Species

Crown width Core Forest Seed species Source: ADW: Search ADW. (n.d.). Animal Diversity Web. https://animaldiversity.org/search/?q=Viverra+tangalunga&feature=INF ORMATION 323

PROCESS OF SEED DISPERSAL & SUCCESSION This figure shows the changes of plant distribution in different periods of the site through two manual interventions and seed self-generative.

LEGEND

Mature tree (nature)

Young tree (disperse from nature) Seed dispersal area (from nature)

Preserved forest and first human intervention.

Purpose of huaman intervention: To help increase site connectivity, allowing birds and arboreal animals to move around the site as quickly as possible.

Requirements for selected species: The maturity is short, and the seedling period can grow in the sun.

Planting range: Main wildlife corridor and waterfront area.

324

Start the second human intervention.

The first planted trees have matured to provide pathways for certain animals, at the same time, there is enough shade to support the growth conditions of long-lived tree species.

Purpose of huaman intervention: Enrich the types of plants and habitats.

Requirements for selected species: Long-lived tree species that can provide a food source for more animals.

Planting range: Away from human living areas, choose the main animal activities such as waterfront areas.

Mature tree (from first human intervention)

Mature tree (from second human intervention)

High control area

Young tree (disperse from first human intervention)

Young tree (disperse from second human intervention)

Allow self-generative area

Seed dispersal area (from first human intervention)

Habitat types are beginning to increase.

Water

Final plant distribution pattern on site.

2000 m

Most of the animals can move between the main patches of the site through the wildlife corridors, further increasing the range of seed dispersal, and the plant types of habitats are beginning to be abundant.

Some long-lived tree species replace pioneers and become the main tree species in animal habitats, and the habitat structure tends to be stable.

325

CONSTRUCTION PHASING

Final Phase

Conserved Waterbody Conserved Forest Conserved Buildings Conserved Roads

1,0 00 m

5 years

Phase1

Forests

1,0 00 m

5-10 years

Phase2

Waterbody Habitat Improvement Waterbody Changes

Construction Contents

Conserved Forests Conserved Buildings COnserved Roads

N W

m

P

00

Animal Rescue Center Eco-link Denser Forests

Phase1

1,0

10-15 years

Phase3

Corridors and Patches Streetscape Waterbody Main Roads Animal Movement Potential Movement Destinations

The first phase is about circling out conser new waterbody then the water habitat will b in the phase3, because of the expanded fo more.The main roads will also be construc Finally in the phase 4, there will be paveme

Buildings Green Rooftop Paved Areas

326

1,0

00

m

10 years

Phase4

1,0 00 m

Phase2

Phase3

Phase4

New Waterbody Modification Waterbody Habitat Improvement

Denser Forests New Animal Movement and Destinations Corridors and Patches Eco-link Infrastructure ( Animal Rescue Center) Main Roads Construction Streetscape

Buildings Green Rooftop Pavement Minor Roads

rved areas. Some roads, buildings, waterbody and forests will be conserved. In phase two we are going to modify the land to propose be improved at the same time. orest and the proposed corridors and patches in the site, we will have more animal movement and will accelerate the dispersal process cted along with streetscape and infrastructure. ent, all the buildings and secondary roads to be constructed.

327

SITE SCALE PLANNING - SITE SELECTION Application of Proposed Strategies PLAB Site

2 km

In the following pages, we will apply our three strategies considering self-generative, spatial, and experiential, again in the selected site to see how we tackle the connectivity issue and promote the seed dispersal process so that the free-flow, soften, and self-generative goals can be achieved.

And there are two key reasons for choosing this site. One is that the site contains one of the critical ecological corridors that connect three primary core forests. The site also includes various typologies that could be analyzed and applied to other PLAB sites. Typologies include from forest edge to urban space, within the urban spaces, within the core forest areas, etc.

328

Selected Site

Core Forest

Nature Park Residential

Core Forest

Residential Commercial

Commercial

Core Forest

500 m 329

SELF-GENERATIVE PROCESS

Changes of plant maturity in different periods of zoom in site and different plants distribution range of two manual interventions.

PHASE 1 Preserved forest and first human intervention.

Mature tree (nature) Young tree (disperse from nature) Seed dispersal area (from nature)

PHASE 2 Start the second huamn intervention.

Mature tree (from first human intervention) Young tree (disperse from first human intervention)

300m The First Human Intervention The maturity is short, and the seedling period can grow in the sun.

330

Seed dispersal area (from first human intervention) Allow self-generative area

PHASE 3 Habitat types are beginning to be abundant.

Mature tree (from second human intervention) Young tree (disperse from second human intervention)

PHASE 4 Final plant distribution pattern on site.

Tree (high conrol area)

300m The Second Human Intervention Long-lived tree species that can provide a food source for more animals.

High control area Water

331

SELF-GENERATIVE TYPOLOGY

The diagram shows the range of seeds that different species are more inclined to spread at different stages, from pure natural areas to high-control areas.

Section location

PHASE 1

PHASE 2

PHASE 3

PHASE 4

332

Target animal species

Preferred Seed Dispersal Range for Animals

333

CURRENT SPATIAL CONDITIONS AND OPPORTUNITIES Based on Studio Proposed Layout

*arboreal animals needs more spatial considerations compared to flying animals.

New Least-Cost Path Layout As mentioned in earlier pages, the selected site is situated in one of the major green corridors, and the main target animal types are arboreal and flying. The spatial goal here is to propose another layer of an ecological connection system for both animals and humans on top of the PLAB scale linkages by utilizing topo and natural/artificial structures so that the animals’ free flow can better penetrate into urban spaces.

The above diagram shows the site conditions after our PLAB scale proposal. A spatial study needs to be performed to analyze how to create a more continuous habitat linkage.

334

SPATIAL MASS STUDY Natural and Manmade Structures

And what can facilitate arboreal movements?

1) trees need to be present and in full contact and roughly at the same level.

2) multiple crossing options need to be provided.

3) well-connected to the adjacent forest to have a viable destination.

So utilizing these planning principles, topographic changes in relation to building heights, and the tree species layout and information proposed in the self-generative process, canopy bridges were formed during the site model study, and continuous linkages for both human and animals at different levels are studied.

335

SPATIAL - CIRCULATION LAYOUT Animal and Human Circulation

Typologies 01 - Within the Core Forest

03 - Between Urban Structures The arboreal movements are mostly encouraged near the identified central ecological corridor.

Various crossing options are provided both on the ground and on the buildings. Streetscapes allow additional moving options.

02 - Forest Edge to Urban

336

04 - Urban Edge Back to Nature

Human circulations are primarily focusing on where the buildings are. Minimum human circulations are proposed near the main ecological corridor to reduce the human footprint.

Please refer to the experiential planning in the next section for further details.

SPATIAL TYPOLOGY SECTIONS Natural and Manmade Structures

01 - Within the Core Forest Ecolink on top of the vehicular road to connect the habitats from the same topographic level within the core forest area.

02 - Forest Edge to Urban Trees with various heights to plant down the slope will allow a continuous canopy linkage to be formed.

03 - Between Urban Structures When the gap between buildings is narrow, a hardscape structure linkage can be applied to create extra space at the roof level so that smaller trees can still become part of the canopy bridge.

04 - Urban Edge Back to Nature In cases where planting spaces are scarce, some innovations to building structures can be applied to open up the canopy level where arboreal flow may not be disturbed.

337

338

Site Scale Habitat Map

With zooming into the stie scale, the detailed habitat map of the site indicates the potential animal habitat boundaries in site scale.

Vegetation and Food Resource

Syzygium zeylanicum Samanea saman

Syzygium grande Mangifera indica Barringtonia racemosa Adenanthera pavonina Ficus microcarpa Rhopaloblaste ceramica Cinnamomum iners Dillenia suffru�cosa Ficus Fistulosa

Taking animal habitat boundaries into consideration, we get the result of utility of plant species and planting design. With different vegetations introduced, they can provide food resource to different animal groups.

Melastoma malabathricum musa spp Parkia speciosa Durio zibethinus

Ficus vaccinioides &Ficus microcarpa 'Golden' Peltophorum pterocarpum Delonix regia

500 m

339

340

341

SITE MASTER PLAN

2 3

1

1

Secondary Forest

2

Woodlands

3

Waterbody

4

Core Forest

5

Eco-link

6

Green Rooftop

7

Urban Parks

8

Community

9

Commercial Area

8 6 8

9 7 4

9

Finally, with the consideration of human activities, the site plan merged the planning considerations from all three perspectives - self-generative, spatial and experiential. Habitat maintenance and food resources are intended to accelerate the animal movement for improved seed dispersal. The canopy layers, urban parks, streetscapes, and human walking paths in animal habitats aim to reduce the human-animal conflicts, thus getting the outcome of softening the barriers and free flow of animals and humans and transforming PLAB into a critical ecologically self-generative stepping stone within Singapore.

342

5

100 m

BIRDS’ EYE VIEW

343

344

STAND BY WILDLIFE WILDLIFE CONFLICT & PROTECTION

Ren Junyao, Wang Liangyu, Zhang Yuxi

Our project topic is Wildlife Economy. Wildlife Economy is based on the conviction that nature is an economic asset. Some research shows that a sustainable wildlife economy benefits people and nature, using habitats and When communities living closest to wildlife have a clear role and stake in managing. What’s more, when communities living closest to wildlife have a clear role and stake in managing nature, they have a stronger incentive to conserve it.

The background of the project is based on the progressive deterioration of natural resource development in Singapore PLAB. First, the relationship between human and wildlife become tense, and human development increase more cases of human and wildlife conflict. Second, nature and property value have a positive correlation, but current development can't maximize the use of the natural resource. Finally, the boundaries between different landcover are too rigid, the edge should serve as the buffer zone between human and wildlife.

Our vision is to increase the economic value of natural elements and land value to achieve coexistence between humans and wildlife and raise awareness of protecting wildlife.

Based on that, we use the Habitat Suitability Analysis of four target animals and different rating overlays to obtain a hierarchy of sites from natural to human. Based on the rating and topography, we extract the edge typology and give the proposal edge, and then analyze and evaluate the property value in Singapore.

At the same time, we extracted three keywords for the project concept: Diffuse, Appreciate and Negotiate. In terms of diffuse, we provide proper Human-wildlife distance, we use topography change and slope analysis to set up multi-landuse in different slope rating overlays. In terms of appreciation, we use different degrees of openness from private to public, set distances, and different programs to enhance the aesthetic value of the site and the economic value of the site. In terms of negotiation, we use vegetation and installation, to carry out a strategy of attraction and avoidance of wildlife, so that people and wildlife can coexist in their appropriate areas.

For the contribution to the overall studio masterplan, Wildlife Economy plays a role in balancing the natural resources of the site with the intensity of man-made development, allowing for a better deployment of natural resources in the urban rewilding process and increasing the economic development value of the city. At the same time, it stimulates people's empathy and achieves the purpose of community with a shared future for mankind.

345

HABITAT DECREASE AT PLAB Landform and Habitat Changing Map

Legend

Legend

The background of the project is based on declining natural resources and increasing human-wildlife conflicts in Singapore PLAB. From 1945 to 2022 maps, we conclude the conflict between humans and wildlife because of the reduction and distribution problems of natural resources.

346

1000m

HISTORY OF WILDLIFE IN PLAB Human-wildlife History

Source: People in Peril, Environments at Risk: The History of Tigers in Singapore Dr Miles Powell, Nanyang Technological University, Singapore National Museum of Singapore, Gallery Theatre 9 April 2017 347

TENSIVE RELATIONSHIP 4 Target Animals&Current Habitat

Wild Boars

Influence on Environment

Sensitivity to Humanbeing

Suitable Distance from Human Area

Management

Crab-eating Macaque

Decrease in growing of many plants and trees by trampling and rotting.

Conflict is not so severe in Singapore.

Increased turbidity of water.

Affecting agriculture and livelihoods.

Leads habitats to become less diverse.

Leads habitats to become less diverse.

Wild boars are very dangerous because they are aggressive and also carriers diseases.

Very easy to adapt to artificial environments and not afraid of humans.

Uncomfortable from people: < 550 Meters

Uncomfortable from people: < 300 Meters

Research shows hunting is the only strategy to significantly reduce crop damage by boars.

Restrict their area of movement by erecting barriers and providing food.

Birds

Urbanized Area

Terrestrial Animals Aquatic Animals

Waterbodies Through the witness website, there is four target wildlife on our site. They are wild boars, crab-eating macaque, smooth-coated otters, and some birds. We research their influence on the environment, sensitivity to human beings and suitable distance from the human area, and how’s the management.

348

TENSIVE RELATIONSHIP 4 Target Animals&Current Habitat

Smooth-coated Otter

Maintaining the balance of nearshore ecosystems.

Influence on Environment

Birds

Helps pollinate plants and spread seeds.

Provide insect and rodent control.

Otters can be frightened by humans in close Birds can be frightened by humans, but they proximity, flashing lights and human activity will look for food in the range of human. noise can also anger or frighten otters.

Sensitivity to Humanbeing

Suitable Distance from Human Area

Management

Uncomfortable from people: < 50 Meters

Shorebirds or songbirds: >100 Meters Hawks and eagles: >400 Meters

Threat includes settlements, agriculture,water pollution.

Restrict their area of movement by erecting barriers and providing nest.

Urbanized Area Nest Birds Secondary Forest Insect Small Mammal

349

ISSUE STATEMENT Human Wildlife Conflict

GIS Analysis

Relationship between human and wildlife become tense, human development increase more cases of human and wildlife conflict.

Negotiate: Provide proper Human-wildlife distance.

The first issue statement is human-wildlife conflict. We want to negotiate the proper human-wildlife distance, so we use habitat suitability analysis to get the rating map. The map shows the rating from nature to human, which help us to rearrange the site landuse and define the buffer distance roughly.

350

ISSUE STATEMENT Human Wildlife Conflict

Habitat Suitability Analysis

Rating Map Process

The suitability analysis came from the environmental indexes, including DEM, SLOPE, ASPECT, LANDCOVER, NDVI, AIR TEMPERATURE, and WATER RUNOFF. Then, based on the index and weights of different target animals in the paper, the result demonstrates the suitable habitat in PLAB. We extract the areas with high scores as core protection areas, and the extraction of areas with medium scores, as the potential areas, and overlayed areas should be protected.

351

ISSUE STATEMENT Property Value

Closeness of Nature

Closeness of Nature & Life Satisfaction

Nature and property value have a positive correlation, but current development can’t maximize the use of the natural resource.

Life Satisfaction

-0.5

Team

Individual Willing to Excercise

1000-1500m Managed

1000-1500m Spontaneous

500-1000m Managed

500-1000m Spontaneous

0

0-500m Managed

Appreciate: Provide comfortable and and aesthetic sense to wild habitats for increasing land value with residents’ appreciation.

+0.5

0-500m Spontaneous

Regression Coffecient

Closeness of Nature & Excercise Willing

Walk

The second issue is about nature and property value have a positive correlation, but current development can't maximize the use of the natural resource.

352

ISSUE STATEMENT Property Value

High

Site Area

Site Coverage

Open Space

400m2 10m Width

50%

GFA: 7.24%

200m2 10m Width

45%

GFA: 7.24%

240m2 22m Width

50%

GFA: 7.24%

Amount

Legend

30 units 4002 per unit 1.2ha in total

Bungalow

80 units 2002 per unit 1.6ha in total

Semi-ditached House

210 units 2002 per unit 4.2ha in total

Terrace Houses

4000m2 (Including Facility)

14 12-story units 14 24-story units 50%

GSR: 40%

4000m2 per unit 11.2ha in total

Condo

35 12-story units 35 24-story units 1000m

Low

2

50%

GSR: 40%

1000m2 per unit 70ha in total

HDB Institutional

We investigated the site standards and green space ratios of properties of different values.

We are aimed to provide a comfortable and aesthetic sense to wild habitats for increasing land value with residents’ appreciation.

Commercial Sports 353

ISSUE STATEMENT Rigid Edge

Original Rigid Edge 1

Unutilized Area-Waterfront (with height difference)

Boundaries between different landcover are too rigid, the edge should serve as the buffer zone between human and wildlife.

3

Unutilized Area-Waterfront (with height difference)

4

Forest-Road (without height difference)

5

Runway-Forest (without height difference)

6

Sand dune-Waterfront (with height difference)

7

Diffuse: Creating diverse buffer zones and softening their edge for nature and human usage.

2

Industry - Urban Green (without height difference)

8

Forest-Unutilized Area (with height difference)

Runway-Forest (With height difference)

The third issue statement is the Rigid Edge. Currently, the boundaries between different landcover are rigid, but we propose the edge area can serve as the buffer zone between humans and wildlife to achieve their co-existence. The keyword here would be 'Diffuse', which means creating diverse buffer zones and softening them and we classified the edges into eight typical types by land use and height change.

354

ISSUE STATEMENT Rigid Edge

3

8

1

7 4 6

5

2

The picture shows our analysis process. We made a series of sections of Paya Lebar and overlayed it with current land use, which illustrates the areas with more conflict.

355

CONCEPT Proposed Edges

1

2

3

4

5

6

7

8

We propose different treatments to existing edges, the red-line marked areas are where the changes happen. Based on different land use and height differences, we arranged proper programs on the sites.

356

CONCEPT

Masterplan and Site Selection

Overlayed the analysis result and our proposal together to get our group's overall master plan for Paya Lebar.

The map shows 4 degrees of accessibility for humans and wildlife, the solid-green areas don't allow human access while The areas with the sparsest green dots are most human-related. Different types of properties are also located on our site by various arrangements.

We chose two sites with different natural resources to do a detailed design. The site in the northwest includes a waterbody, and another site in the southeast includes diverse land use from nature to the urban area, also, the properties we located in these two sites are quite different.

357

STRATEGY1:TOPO&LANDUSE Topo Analysis and Modification

Site2

Site1 Nature Artifical Water

Institutional HDB12 HDB24 Bungalow

Artifical

Original Rating Map

Original Rating Map Slope

Slope 25°

25°

0°

0°

Original Slope Map

Original Slope Map Slope

Slope 25°

25°

0°

0°

Modified Slope Map

Modified Slope Map

The first strategy is modifying the topography to provide diverse land uses in our sites. By analyzing the slope in Grasshopper, the results show the extreme steep parts and we proposed to reduce those rigid edges. After topo modification, we rearrange the human-dominated activities in gentle terrain and use the relatively steep spaces as the buffer zone, separating from wildlife protection area.

358

STRATEGY 1: TOPO&LANDUSE Multi-Landuse Arrangement

Bungalow Private Entertainment Wildlife Habitat Forest Waterfront Public Space Water Circulation 1m Contour

Site1

Commercial

Urban Park

Learning Forest

Picking Garden

HDB

Wildlife habitat

Planted Forest

1m Contour

Institution

Terrace

Circulation

Site2

359

STRATEGY2: PROGRAM& OWNERSHIP Site 1 Distance&Installation

Slope<10° 10<Slope<20°

Private Space 10-30m

Sports, BBQ

Living Facilities

Productive Garden

Kite Flying, Picnic

Courtyard

Waterfront Terrace

Slope>20°

Slope Decides program and Species

Exclusive Space <10m

Wildlife

Vegetation

Human Activity

The second strategy is controlling the closeness between wildlife and human to decide on different programs and ownership. In riverside edges, we proposed high-end value housing along the riverside, using distance, slope, and installation to maintain the proper distance between humans and wildlife.

360

STRATEGY2: PROGRAM&OWNERSHIP Site 1 Distance&Installation

Distance Decides Ownership Public Space to Wildlife Habitat >30m Wildlife Protection Station

Feeding Spots

Viewing Platform

High-end Landed

Food Resource

Electronic Sound Repellent

Live Fence

Spined Plants

Walking Path

Earth-covered Structure

Productive Garden

Attract & avoid installations in landed housing

Attract & avoid installations in riverside 361

STRATEGY 2: PROGRAM& OWNERSHIP Site 1 Program Map

B'

A'

B

A

Site 1 Program Plan

362

STRATEGY2: PROGRAM&OWNERSHIP Site 1 Section

By analyzing the closeness of natural elements and the slope of the terrain of the high-ended house, we decided on the arrangement of programs and the species of plants. Combining techniques and installation to demonstrate how to control the degree of attractiveness and avoidance of targeted wildlife. After our design, the riversides become more diverse than before, the program plan and sections show the different spatial experiences in river edges.

Section A-A’

Section B-B’

363

STRATEGY&ANALYSIS 2 Site 2 Distance&Installation

Closeness to Nature Decides Program and Species

Extreme Situation <5m

Public Space <50m

Tree Pool

Streetscape

Window View

Residential Green

Attract & avoid installations in high density residential area

Roof Garden Facade Garden

Eclogical Brick

Drainage

In site 2, most edges will concentrate on forest-artificial areas. Following the same design idea, we analyzed the distance and potential intervention in site2.Because public housings have a much more population compared with landed property, they have a different standard of deciding their program and ownership.

364

STRATEGY2: PROGRAM&OWNERSHIP Site 2 Distance&Installation

Distance Decides Ownership Semi-nature Space 50m-150m Agroforestry

Learning Forest

Wildlife Protection Area >150m Low Density Insitution

Viewing Platform

Attract & avoid installations symbiosis in semi-natural area Wildlife Viewing Food Resource

Biodiverse Playground

Haha Wall

We used some typical diagrams to show the various transition of natural elements.The Human intensity decrease as it gets closer to nature, and site 2 requires more public space and a larger buffer zone compared with site1 365

STRATEGY 2: PROGRAM& OWNERSHIP Site 1 Program Map

D

D'

C

Site 2 Program Plan

366

C'

STRATEGY2: PROGRAM&OWNERSHIP Site 1 Section

Section C-C’’

Section D-D’’ We propose diverse changes in properties and natural elements, for people can harvest fruits and explore learning forests on weekends or observe wildlife through their windows on weekdays.

367

STRATEGY 3: FOOD&HABITAT Site1 Wildlife Food&Circulation

Wild Boars

Ephedra Sinica

Rambutan

Genus Rosa

Crab-eating Macaque

Ficus Microcarpa

Typha angustata

Site1 for 4 target animal

Strategy 3 is about providing sufficient food and habitat for wildlife, by analyzing the food resources, we get the favorable species and unfavorable species of our 4 target animals.

368

STRATEGY2: FOOD&HABITAT Site2 Wildlife Food&Circulation

Birds

Banana

Bougainvillea

Smooth-coated Otter

Mangifera Indica

Oryza Sativa

Oryza Sativa

Site2 for 3 target animal

2 plantation map showing where we set those feeding vegetation and how to manage wildlife’s circulations.

369

FINAL DESIGN Detail Masterplan

Site1: Riverside Edge

370

FINAL DESIGN Detail Masterplan

Site2: Forest Edge

371

ACHIEVEMENT Riverside Edge

By constructing high-value houses on the water edge, the Sergon River serves as a backyard for landed properties, both enhancing the land value and introducing a more inclusive and diverse waterfront along the Serangon River. By cultivating aquatic crops that can be used as food resources to control the distance between the range of wildlife and human, the two groups can avoid direct conflict.

Human’s View

372

Otter’s View

ACHIEVEMENT Riverside Edge

Aerial View

373

ACHIEVEMENT Forest Edge

Provide sufficient food resources in the core protection area, and set up human-intervented forests as a buffer zone between the natural and high-density housing, so that residents can see the wildlife through their windows while maintaining an appropriate distance.

Macaque’s View

374

Human’s View

ACHIEVEMENT

Forest Edge

Aerial View

375

sis

is

ran

tha

een

He

Fa lca tar ia

ve

ab

ras

mo luc ca na

ilie

ns

mic

guin

ter wa ay

is rm fo uli ric au

Mik

ania

species Ficus

Elae is

Spathodea campanulata

Clidemia hirta

calabura Muntingia

a

ia rose Tabebu

a

Gr

hy tac

m oliu yrtif

s oly is p

mm ygiu Syz

ix am han Ap

ia ac Ac a ch s

inw

Fa

gra

ea

Mim

osa

fra

r

rd

or

Ra

G

ga

nic

nd

la

s as

or

In

ate

ru Sc

ns

pud

ica

Health

Soil

y

Alocasia

nd

bla

r

gra

macrorrh

iza

CARBON BANK

Falcataria moluccana

Terminalia catappa

Albizia

Water

ia

falcatar

Seco

ndary

seum

Penni

rmis

fores

t

lifo

ng

aris

e

lin

Ab

a pp

an

a

in

ala

ea od

Soft clay

Cinnamomum iners

ta ulen

cocephala Leucaena leu

Canal

esc

culi auri acia

ihot Man

us specios

Ac

water

is

ath

na

leu

co

st om a

ce

m

ph

mitis

sa

tico

lia

tifo

ae

ise

ffru

su

uc

qu

ia

ae

rin

Le

ua

len Dil

ia sp Ardis

ostus

Cheiloc

376

ota Cary

M ela

s Ca

ala ba th

ric

m

r Te

a ali

t ca

form

Dic

is

r pte

o

ran

Yo u

ica

ind

Sp

ra

ace

Tetr

um

cia Aca

cu auri

do

ne

d

la

sec

nd

on

fo

re

da

st

ry

for

est

NATURE AS A CARBON BANK RECYCLE NATURE ELEMENTS AS NATURE CAPITAL

Cheng Siqi, Zhao Mingyu, Jiang Ruomin

Nowadays, carbon neutrality is a hot topic around the world. Singapore is known to have the 8th highest per capita carbon emissions in the world. PLAB is surrounded by the most densely populated areas in Singapore and has lost most of its natural areas and resources in the past airport construction, so PLAB is an ideal area to achieve carbon sequestration. Through our assessment, the CO2 release from the future 160,000 residential population far exceeds the CO2 absorption from PLAB's existing natural resources. With the goal of carbon neutrality by 2050, PLAB will eventually form a huge urban carbon bank to mitigate the high per capita carbon emissions faced by Singapore through the recycling of water, soil, vegetation and other natural resources within the site over 30 years.

One of our strategies is to reduce carbon footprint. Water, soil and forest resource are intervened to reduce carbon footprint in that soil with forest store carbon in their original state. Water resources are collected, recycled and discharged in each catchment. After calculation, the waterway in each catchment can bear the biggest runoff of the catchment. The movement of forest resources are mainly transfer timer from deforested areas to resource recycling centers for production and recycling. The transfer of soil resource mainly lies in the construction of new habitats as urban forests and wetlands, building aquatic habitats near the river, and others put into the use of landscape. In general, the utilization rate of soil in the PLAB has reached 71%.

Another strategy is to maximum carbon sequestration. Firstly, pioneer species and framework species are planted to restore the existing forest. Secondly, primary forest species are used to improve existing forest and accelerate their succession. Finally, back mangrove and freshwater swamp are introduced to restore the wetland ecosystem as the main force of carbon sequestration.

PLAB witnessed a complete process of forest succession. After creating suitable soil conditions, the first pioneer trees were planted to form one secondary forest quickly. Then secondary forests gradually introduces primary forest species into it. During this time, woodcutter constantly trimming the canopy of pioneer trees to provide growth space and sunshine for primary forest species, and also the cut branches and leaves can be used as biomass to improve soil fertility, which accelerate the evolution of the original forest towards a more mature primary forest to maximize the carbon sequestration.

The last strategy is to mitigate urban heat. Through the construction of green roofs, vertical greening and urban green space, indoor and surface temperature can be reduced. Wetlands and urban rivers can also absorb heat to create a good microclimate. These designs reduce the temperature of PLAB and reduce energy consumption at the same time. The purpose of mitigate urban heat is to build low-carbon community from an energy-consumption community.

377

STUDY OF SINGAPORE

378

PLAB has lost many natural resources in the past 70 years, so we chose PLAB as the site for ecological restoration design .

379

EVALUATION OF NATURE RESOURCE

LEGEND River Inner lake Secondary forest Scrubland Forest & scrubland Secondary forest and scrubland Park Open space Paved surface

NATURAL RESOURCE 1856

ha

1327

ha

CARBON EMISSION

Forest & scrubland

406

ha

Secondary forest

Secondary forest&scrubland Scrubland

Park

148 160,000 Total flux

380

Roadside greeny

106

ha

15052

trees

136

ha

28288

trees

61

ha

11835

trees

18

ha

1818

trees

50

ha

5050

trees

35

ha

3535

trees

-11788 t

ha DUS

+60800 t +18544 t

FRAMEWORK

Strategy deduced from the venue problem: Carbon Bank formed by three Nature Capital

W ER AT

ALL PIT CA

GRE EN CA PI TA L

CARBON BANK

ISSUES

STRATEGY

DESIGN TARGET

Forest degradation

Maximize carbon sequestration

Vegetation branch

Improving existing forest Restore forest Recover water system Wetland disappear

Reduce urban heat Plant more trees Increase water body

Water branch

Carbon footprint of construction

Minimize carbon footprint

Soil branch

SOIL CAPITAL

Carbon emission by dwellers

Soil transport Water transport Tree transport

381

PROCESS OF MASTER PLAN Water system

382

Vegetation impr

rovement

Soil transfer

383

PHASING

The four construction stages of PLAB from current situation to renovation completion

PHASE 1

Fertility Restoration PLAB lost a large number of natural habitats during airport construction, and most of the surface is hard ground, so we need to restore the soil conditions according to the planning before restoring the vegetation.

We mainly carried out three kinds of soil movement: using sand and soil as the composition of swamp soil; Use forest soil for new forest construction; The soil excavated from the river channel will be used for the construction of natural buffer near the riverway.

384

PHASE 2

Vegetation Improvement According to the current situation and history of different plots, we have carried out some vegetation restoration and upgrading. Firstly, we added some tree species of primary forest according to the terrain of the original secondary forest as an improvement of species diversity.

Secondly, pioneer trees will be planted where new forests will be built. Third, we will restore the wetland in the original mangrove forest in the northeast, mainly planting back mangrove along the river and building fresh water swamp in other places.

PHASE 3

Urban Greenery In order to increase carbon absorption and reduce urban heat island effect, we have also designed and improved greening in the city. First, we built green roofs and vertical greening to cool the buildings. Second, we set up green spaces such as urban parks, community greening and urban agriculture to increase the planting area of the city. Third, we planted street trees on both sides of all roads.

At the same time, some forest parts have grown into primary forests and the rest are also growing gradually.

PHASE 4

Natural Succession About 40 years later, most of the forests on the site have been replaced by primary forests. Wetlands and swamps grow mature and can be act as the main force of carbon absorption. Urban heat island is effectively reduced through urban greening. The new water system can efficiently solve the problems of drainage, circulation, irrigation and flood. The water, soil and tree resources on the site are continuously recycled in people's life, greatly reducing the daily carbon footprint. At this time, PLAB can achieve the goal of carbon neutralization.

385

MASTERPLAN

GRE EN CA PI TA L

CARBON

6

3

4

6

1 2

Water Capital

386

7

5 6

7

10

Soil Capital

APITAL

Green Capital

Site Bounday Recycling Center Main Roads Buildings Highway Slope Forest Flat Forest Urban greenery Roside Tree Back Mangrove Fresh Water Wetland Wetland Greenery Waterbody Waterway

1 2 3 4 5 6

BANK

W

7 8

ER AT

9

11

11

ALL PIT CA

7

10

Slope Forest Flat Forest Fresh Water Swamp Back Mangrove Community Wetland Park Purification Wetland New Forest Corridor Bedok Reservoir Tampines Quarry Recycling Center Water Square

10

9

8 5

1 km

2 km 387

SOIL

STRATEGY 1 :MAXIMIZE CARBON CONSEQUESTRATION

15.6 HECTARE BACK MANGROVE

Improve

HABITAT PROPOSED

Tree branch

98.6 HECTARE YOUNG FOREST PROPOSED 87750 TON CARBON DIOXIDE ABSORBED

Carbon catcher

Wetland

Restor Water branch

388

re wetland

Framework species forest Pioneer species forest

30 years later Mature forest system

Compound forest

Provide

nutrients

Purify w

Support

existing forest

ater bod

Back mangrove habitat Riverscape

ies

Carbon bank

10 years later Wetland habitat

389

FOREST SUCCESSION

Secondary forest

Scrubland

Melastoma malabathricum

Clerodendrum laevifolium

Ferrugineum

Macaranga hypoleuca

Syzygium lineatum

Ficus fistulosa

seed dispersal Pulcherrimum

Prunus polystachyus

Timonius wallichianus

Tree transplanting

More su

Leguminous plants

390

Biomass

t

Primary forest

Campnosperma auriculata

Shorea leprosula

Dipterocarpus

Koompassia

Canarium

Parishia

g

Prune branches

unshine

Leaves

Twig

s

391

STRATEGY 2 :REDUCE URBAN HEAT

117.5 HECTARE URBAN FOREST PROPOSED 28.6 HECTARE WATER SYSTEM PROPOSED 2.5 DEGREE TEMPERATUREA REDUCTION

Green roof

Energy consumption community

Urban r

392

river way

Vertical greening

Urban green space (forest park/forest street)

Cool air by tree transpiration

SAVE ENERGY Absorb heat by water evaporation

Low carbon community

Wetland

393

STRATEGY 2: REDUCE URBAN HEAT A cross-section model of a low-carbon community

Lower the building's indoor temperature

394

- Transpiration of vegetation - Cooling surface ground

n

Evaporation of water cooling surrounding area

Increase the shade

Green coverage of PLAB is increased to

83.88%

16.12% higher than before.

So surface temperature can be reduced by about 1.8℃ Each building has green roof and vertical greening, which can reduce the indoor temperature by about ℃

4

and save AC energy consumption by more than The water surface area of the site is

25%

129.39ha

17ha larger than before,

providing comfortable microclimate for the surrounding area.

395

STRATEGY 3: REDUCE URBAN HEAT

396

397

STRATEGY 3: REDUCE URBAN HEAT

398

We have set up RECYCLING CENTERS in areas of the site where resources are exchanged frequently.

Soil that around 275,000 14-feet freight trucks can carry, and 13% of the forest resources are put into the recycling centre, which then goes to the plant for processing.

They are then involved in the lives of the residents.

Residents learn about resource use through craft schools, exhibition halls and experience recycling in the form of urban green spaces and street furniture.

399

DETAILED DESIGN: EXAMPLE OF CARBON BANK

8

1

7

2

9 6

3 5

4

N 50m 0

LEGEND

1 Farmland 4 Recreational park 7 Primary forest

2 Wetland 5 River buffer 8 Pioneer forest

Application of strategies in specific site

200m

100m

400m

3 Water reservoir 6 Recycling centre 9 Communiy park

For strategy 1, we have retained and improved the original forests, and built new urban forests, green spaces, fruit forests and urban agriculture to maximize carbon sequence.

For strategy 2, we set up roof garden, vertical greening, river and surrounding community green space, agriculture field and roadside tree to reduce the heat island effect. At the same time, wetland is also a place for residents' leisure and entertainment activities.

For strategy 3, we set up recycling center, factory, lab, museum and handcraft school near the road and forest to recycle the resources in the site.

400

Site selection In the whole carbon bank, this area is the most frequent and complete node for resource conversion, so we choose it as a example for detailed design.

Type of utilization The gray area is the original resources of the site, mainly including the original soil. The brown area is the original resource retained, mainly forest. Green area is the location for resource recycling, including new forest, community green space, wetland and urban agriculture. Red is the newly added resources, mainly street trees

Resource distribution Firstly, the soil excavated from the original site is transferred to different places for habitat construction after being treated by the recycling center. Water resources are collected from rainfall and enter the river through roof garden and surface flow. They are used by downstream communities and agriculture and fruit forest around the river as toilet flushing and irrigation. Finally, they enter wetland for filtration and storage, and then recycled in dry season. The trunk, leaves and other resources in the forest are processed by the recycling center into urban furniture, wooden pavement and handcraft, which are used by people.

401

WETLAND: MAIN FORCE OF CARBON SEQUESTRATION

STAGE I

STAGE II

Recycle natural resource

Improve soil quality

±0.00

Green buffer

-5.00

Soil transfer

Soil transfer

±0.00

Dig

INPUT

Green buffer

Fill

=

OUTPUT

-0.104 ton km

2

402

Rainwater collection

yr-1

Plant phytoremediation

Rainwater collection

+2.504 ton km

2

yr-1

STAGE III

STAGE VI

Assisted natural regeneration

Maximum ecosystem diversity

Secondary forest

Primary forest

Naturalized river

Wetland

Primary forest

Secondary forest

Tree planting

Wetland

+7.304 ton km

2

yr-1

Water system

Maximum diversity

+13.304 ton km

2

yr-1 403

WETLAND

Functions and scenes in community Wetland Park

Rainfall

Roof Garden

Filter and improve water quality

· Replenish groundwater · Biodiversity habitats · Buffer impact of floods and storm surges

Surface Flow

Filtration

Storage

404

Spaces for rcreation and education

e

Discharge

405

FOREST: VEGETATION&SOIL

406

407

COMMUNITY INVOLVEMENT IN RECYCLING CENTER This picture shows the involvement of residents in the recycling of resources outside the recycling centre. The involvement of the residents opens up more possibilities for how the resources can be used. In addition to becoming ecologically valuable products such as biomass, the natural resources can be used as a tool for people to interact, they can make their own desired items from the wood cut on the site, etc. This makes PLAB a more vibrant community.

408

409

NATURE AS A CARBON BANK

410

In the small site, we have created a carbon bank by visualizing the process of carbon generation, absorption and use in nature and human life.

411

412

PRODUCTIVE LANDSCAPE BUSINESSES PLAB AS A SUB-REGIONAL CENTRE

Wee Cynthia, Chai Xin Yi

From an economic and social perspective, Singapore's reliance on outsourced landscape materials has been increasingly demanding as more spaces are allocated for landscape projects. Coupled with demanding national green policies and new town rejuvenation schemes, the local market for landscape materials is expected to surge. Existing conventional manufacturing processes have proven to be an inefficient system within this landscarce nation as it is monofunctional, require a large amount of space, generates a huge amount of waste and are typically separated from communities.

From an ecological perspective, past degradation of forests and urban development have caused native tree species to decline severely. To strengthen our nation's ecological resilience, resource security and respond to the increasing economic demands, PLAB has the potential to become a regenerative productive landscape district. In comparison to the rest of Singapore, PLAB has a high amount of green spaces. This creates an opportunity for businesses to capitalize on the natural resources available on-site. Pertinent to these issues, the productive landscape businesses' design interventions are Productive Parks and Productive Streetscapes.

From an economical aspect, productive parks incorporate tree nurseries which aims to meet PLAB/national demands for the development of urban green spaces, additionally assembling a sustainable network of resource management through soil banks, water catchments and cleansing biotopes helps better the regenerative qualities of the business. Productive streetscapes aim to produce timber for manufacturing byproducts that would support PLAB/national park developments, additionally productive streetscapes are designed with the intention of being self-watering, thus reducing maintenance cost.

From a social aspect, productive parks provide recreational green spaces to meet the green needs of residents.

For productive streetscapes, this would be to safeguard users' safety as overgrown mature trees pose a safety issue to road users. Both design interventions aim to provide employment and land stewardship opportunities to engage residents.

From an ecological aspect, productive parks incorporate seed banks which aid in safeguarding endangered native tree species future population. For productive streetscapes this would be to provide shade to infrastructures by selective planting.

413

VISION Overview

414

BACKGROUND RESEARCH

We then did a background research on landscape businesses, ranging from edible garden to bee keeping and we eventually decided on businesses that are scalable and one that utilizes the natural resources available on-site, this landed us into the business of tree nursery and timber production.

EDIBLE GARDEN

SPACE

EDIBLE GARDEN CITY + OUE Downtown | 465 sqm + Singapore Power Group | 150 sqm

BEE KEEPING NUTRINEST BEE RESCUE | > 100 sqm Sembawang, Orchard road and Jurong Area.

FOOD WASTE TO BIO-MATERIALS INSECTTA | 1600 sqm

NUTRINEST BEE RESCUE | 2-10 EMPLOYEES

INSECTTA | 2-10 EMPLOYEES

VERTIVEGIES PTE LTD | 11-50 EMPLOYEES

[EST.]

EES

CITIPONICS | 2-10 EMPLOYEES

BEE AMAZED GARDEN | 2-10 EMPLOYEES

PRINCE'S LANDSCAPE PTE LTD | 201-500

[EST.]

EMPLOYEES

farming. Close loop system to prevent water wastage and pollution. Rain water is also harvested to reduce water usage.

Monthly yield Plant > Harvest > Sell [rotational]

FAR EAST FLORA PTE LTD | 51-200 EMPLOY-

ROGER&SONS | 11-50 EMPLOYEES ARTHUR ZAARO | 11-50 EMPLOYEES [EST.]

1ST - 3RD MONTH = 4 L/INCH OF TRUNK DIAMETER X 2 TIMES A WEEK

MONTH YEAR 2 - 5 = 4 L/INCH OF TRUNK DIAMETER X 2 TIMES A MONTH

4TH - 12TH MONTH = 4 L/INCH OF TRUNK DIAMETER X 2 TIMES A

Harvested > Extraction > Conversion Frass

+ Conserve the local honey bees. Reduction rate of bee population is in the alarming situation.

+ Valorise food waste [Beer grains & soybean].

Reduce food waste in landfills.

+ Beehives located in cities produce healthier and more productive bees. The reason is that urban bees have access to greater biodiversity, resulting in a more varied diet and stronger immune systems. + Tampines forest has many bee attracting plants.

+ Larvae - Animal Feed

+ Requires trained professionals

+ Requires trained professionals

+ High upfront cost

+ High upfront cost

+ High labour costs

+ Melissophobia - Fear of bees common among

+ Technology issues may cause huge problems

urban community.

+ 3.5x the Production with 99% less water & minimal electricity

PASIR PANJANG NURSERY NPARKS | 6.5 ha [300 000 plants / year]

Bio- Materials

2-3 times per year/season

Harvested > Composting [2 months for BSF]

+ Safest & Purest Harvest grown with 0 pesticides, next to your homes

CONS

NA

+ Shallow dish filled with rocks or marbles is ideal for bees

Collect > Uncap > Heating > Filtration > Ultrasonication > Creaming

CHOP CHING HIN PTE LTD | 8 ha

YEAR 1

+ A colony may need several liters of water per day. Every bee collecting water usually makes about 50 trips, each time collecting about 25 mg of water.

Urban bees also produce, on average, 12 kg of honey in their first year.

+ Sustainably Farmed with zero waste and minimal carbon emission.

PROS

ARTHUR ZAARO [LOCALLY SOURCED] | 1800 sqm

EDIBLE GARDEN CITY | 11-50 EMPLOYEES

1% of traditional farming and 10% of hydroponics

PROCESS

CHENGTAI NURSERY | 3 ha

First urban insect farm in Singapore rearing the over a million Black Soldier Fly [Native to Singapore]. Circular economy.

CITIPONICS | minimal water consumes less thatn

WATER

TIMBER PRODUCTION ROGER&SONS [LOCALLY SOURCED] | 0.8 ha

BEE AMAZED GARDEN | > 1 ha

+ Open Farm Community [restaurant] | 929 sqm VERTIVEGIES PTE LTD | 2 ha

MAN POWER

TREE NURSERY FAR EAST FLORA PTE LTD | 0.6 ha

+ Frass [bio-waste] - Rich Fertiliser suitable for leafy vegetables and urban crops. Doesnt smell.

Seed > Sapling > Young Trees > Redistribution

Young Trees > Mature Trees

Year 1

Year 7 - 35 Year 2 - 5

+ Reduce import carbon footprint cost. + Quick turnover rate. Plants can be sold in a year. + Provide good quality plants + A new habitat for wildlife

Harvesting > Manufaturing

+ Wood is a building material that contribute to the long term reduction of carbon emissions. + Harvested plantations can be replanted and begin the cycle of carbon retention all over again.

+ ^ Trees = ^ Carbon sequestration

+ Manufacturing timber is low energy as compared to steel, concrete and aluminum.

+ Entomophobia, sometimes known as insecto-

+ Labour intensive

+ Lead time for cultivation to harvesting requires a

phobia

+ Requires regular maintenance, large amount of

long time for mature wood.

space & large amount of water

+ Requires careful regular maintenance

+ Seed/Cuttings - Sapling stage requires a con-

+ Felling of trees will be labour-intensive

trolled environment - high humidity & out of direct

+ Softwoods and Hardwoods will be harvested at

sunlight

different years

+ Bio Materials - Pharmaceuticals and cosmetics

415

ISSUES, STRATEGIES, TACTICS Economical, Social, Ecological

416

417

ESTABLISHING A SUSTAINABLE RESOURCE MANAGEMENT NETWORK Input, Process, Output

418

419

SITE SELECTION

Productive Streetscapes & Productive Parks

420

421

INTERVENTION AREAS

Productive Streetscapes & Productive Parks

Total estimated amount of trees needed to develop PLAB productive streetscapes: 3 381 trees

[e] Runway Avenue Growth rate: Fast-growing Wood quality: Hardwood Khaya senegalensis

[a] Hun Yeang Road Growth rate: Slow-growing Wood quality: Heavy hardwood Cyrtophyllum fragrans

ark

a city :

[d] Tembusu Road Growth rate: Fast-growing Wood quality: Heavy hardwood Ptelocarpa lamponga

[b] Lorong Chengal

Park

a city :

[c] Mahogany Avenue

Growth rate: Fast-growing Wood quality: Light hardwood Hopea odorata

Growth rate: Slow-growing Wood quality: Hardwood Swietenia macrophylla

By Products Lorong Chengal Hopea odorata

Runway Avenue Khaya senegalensis

Tembusu Road Pteleocarpa lamponga

Hun Yeang Road Cyrtophyllum fragrans

Mahogany Avenue Swietenia macrophylla

construction purposes, carts, presses flooring, roofing, fence-posts, ploughs, furniture

flooring, furniture, veneer, decorative work, cabinetry, window frames, plywood, and musical instruments

roof supports, house building, interior construction

heavy construction, railroads, bridges, parquet flooring, furniture, charcoal

high-end furniture, plywood and heavy construction work, precise woodwork items

is Ardisia elliptica Mata Ayam

Furniture

422

Cladding

Bridges & Furniture

High End Furniture

Total PLAB Productive Parks : 92 ha Total PLAB Nursery Area : 14 ha [~15%] Total PLAB Nursery Max Capacity : 11 850 trees

Total es develop 3 381 tr

[d] Productive Park Nursery Size : 14 ha Nursery Max Capacity : 1750 trees

Defu Productive Park

[a] Hu

Nursery Size : 5 ha Nursery Max Capacity : 4 500 trees Total Water Required : 1 800 000 L / yr Total Soil Required : 108 000 L / yr Total Fertilizer Required : 13 500 L / yr

Growth Wood q Cyrtoph

[c] Productive Park Nursery Size : 17 ha Nursery Max Capacity : 2 100 trees

[a] Productive Park Nursery Size : 13 ha Nursery Max Capacity : 2 100 trees

[b] Productive Park

[b] Lo

Nursery Size : 11 ha Nursery Max Capacity : 1 400 trees

Growth Wood q Hopea

By Pr

Produces 10 types of trees

L

constr pres fence-p Hopea odorata Chengal Pasir

Khaya senegalensis Senegal Mahogany

Pteleocarpa lamponga Tembusu Tikus

Cyrtophyllum fragrans Tembusu

Timber Producing Streetscape Trees

Swietenia macrophylla King American Mahogany

Syzygium glaucum Eugenia glauca

Sterculia parviflora Samrong

Tarenna fragrans Koompassia malaccensis Ardisia elliptica Kempas River Tarenna Mata Ayam

Native Endangered UGS Trees

423

QUANTIFYING DEVELOPMENT NEEDS Establishing PLAB Trees KPI

P LAB Be n c h ma rk in g Meeting the prescribed green needs of residents.

URA PLAB Target = 160 000 DUs No. of residents = 160 k x average household size

U rb a n G re e n S paces Demand

Total Residents in PLAB : 506 176 Green Park Spaces needed to serve PLAB residents [0.8ha/1 000 residents] The Population White Paper 2013 = 506 176 / 1000 x 0.8 ha = 414 ha

Accounti ng for margi n of error 20 % + Other Demands

Total estimated minimum amount of trees needed develop PLAB green park space = 21 975 trees 20 % MOE = 21 975 trees x 1.2 = 26 370 trees Other Demands = 26370 + 500 = 26 870 trees

Current urban park [Bedok Reservoir green spaces 59 ha ] & Revamp park [Tampines Quary 62 ha] vs PLAB green needs = 59+62/414 x 100 = 29% Minimum required added GPS - 293 ha Estimated amount of trees needed to develop parks in PLAB [est. 50 - 100 trees/ha of park] = 293 ha x 75 = 21 975 trees

P ro d u cti ve St re e tsca p e s D e m a n d

Total estimated minimum amount of trees needed to develop PLAB green park space = 21 975 trees

424

Lorong Chengal

5.26 km

526 trees

Runway Avenue

9.00 km

900 trees

Tembusu Road

4.95 km

495 trees

Hun Yeang Road

6.92 km

692 trees

Mahogany Avenue

7.68 km

768 trees

[Based on 1 tree every 10 m spacing.]

Total estimated amount of trees needed to develop PLAB productive streetscape = 3 381 trees

Total estimated amount of trees needed to develop PL productive streetscape = 3 381 trees 20 % MOE = 3 381 trees x 1.2 = 4 057 trees Other Demands = 4 057 + 500 = 4 557 trees

d to

LAB

Fin a l D e v e lo p ment KPI

Fast Growin g UGS Native Trees Tra n sp lanting Schedule - 2 Yrs Ko o mpassia ma laccensis Ardisia e lliptica

5394 trees 5394 trees

Modera te Gro win g UGS Native Trees Tra n sp lanting Schedule - 4 Yrs Syzyg ium gla u cu m Stercu lia parviflora Ta renna fra g rans

5394 trees 5394 trees 5394 trees

Total amount of trees needed to development UGS + PS 26 870 + 4557 = 31 427 trees

Fa st Gro win g PS Tree Transpla n tin g Sch e dule - 2 Yrs Ho p e a odora ta Kh a ya senegale n sis Ptele o ca rpa lamp o n ga

704 trees 704 trees 704 trees

Slo w Gro win g PS Trees Transpla n tin g Sch e dule - 8 Yrs Cyrtophyllum fragra ns Swie tenia ma crophylla

536 trees 536 trees

425

PLAB DEVELOPMENT PHASES

­

­

­

Transplanting & Harvesting Schedules

426

­

­

427

PRODUCTIVE STREETSCAPES Intervention Aims & Species Selection

Intervention Aims + Establish young trees in streetscapes for timber produces + Harvest timber into furniture and other usages within Urban Green Spaces + Harvest timber in intervals of rotation periods for future exports outside of PLAB + Capitalize on existing topography and hydrology to reduce watering efforts + Give PLAB a sense of district identity with these 5 main productive streetscapes

Ho p e a o d o r a ta Kh a y a s e n e g a le n s is Pt e l e o c a r p a la mp o n g a

704 t r ees 704 t r ees 704 t r ees

S l o w G r o w in g P S Tr e e s Tr a n s p la n tin g S c h e d u le - 8 Y r s

428

e Hun Y

Road enu

gal

Av

hen

ay nw Ru

- Takes a long time to grow - Takes a long time to season - Is more expensive than softwood

F a s t G r o w in g P S Tr e e Tr a n s p la n tin g S c h e d u le - 2 Y r s

Cy r to p h y llu m fr a g r a n s S wi e te n ia ma c r o p h y lla

gC ron Lo

Hardwood: Hardwood is wood from dicot trees. + Provides an excellent heat output + Burns for a long time + Produces less smoke than softwood

Hun Yeang

e

Softwood: Softwood is wood from gymnosperm trees. + Burns quickly - Does not burn for long + Provides a good heat output - Can produce excessive smoke + Dries/seasons quickly - Can split and crackle lots + Grows fast + Relatively cheap

536 t r ees 536 t r ees

Ma

ho

gan

yA

ven

ue

g

ho

Ma

y an

ue

en

Av

Khaya senegalensis Senegal Mahogany

Pteleocarpa lamponga Tembusu Tikus

Cyrtophyllum fragrans Tembusu

Swietenia macrophylla King American Mahogany

25-30m (H), 1.2m (D) Full sun Moderate water Fast-growing Strong light hardwood

15-30m (H), 1m (D) Moderate shade Moderate water Fast-growing Hardwood

37m (H) Full-part sun Moderate water Fast-growing Heavy hardwood

30m (H) Full Sun Moderate water Slow-growing Heavy hardwood

40m (H) Full sun Moderate water Slow-growing Hardwood

bu

su

Ro

ad

Road

Hopea odorata Chengal Pasir

Tem

eang

Productive Streetscape Trees

Productive Streets

Road Lengths

Trees planted

Lorong Chengal

5.26 km

526 trees

Runway Avenue

9.00 km

900 trees

Tembusu Road

4.95 km

495 trees

Hun Yeang Road

6.92 km

692 trees

Mahogany Avenue

7.68 km

768 trees

Slow-growing: 2 years to reach 1m Moderate-growing: 4 years to reach 1m Fast-growing: 8 years to reach 1m

Selection Parameters: Native Nationally extinct

429

PRODUCTIVE STREETSCAPES Harvesting & Transplanting Phases

Fast-Growing [F.G] Batches F.G plant batch 1 F.G plant batch 2 F.G plant batch 3 F.G plant batch 4 F.G plant batch 5 Year 2048 15.0 m PS Plant Verge 100% of F.G Batches Transplanted Fast-Growing Trees

18.0 m Main Road Runway Avenue

15.0 m PS Plant Verge Fast-Growing Trees Fast-Growing PS Tree Harvested at 12 years old

Fast-Growing PS Tree Transplanted at 2 years old

2m 1m

15.0 m

430

18.0 m

15.0 m

Year 2042 F.G plant batch 2

6m 5m 4m 1m

15.0 m

18.0 m

15.0 m Year 2050 100% F.G harvest batch 1

S.G

F.G

Slow-Growing [S.G] Batches S.G plant batch 1 S.G plant batch 2 Year 2076 15.0 m PS Plant Verge 50% of S.G Batches Transplanted Slow-Growing Trees

18.0 m Main Road Hun Yeang Road

15.0 m PS Plant Verge Slow-Growing Trees

Slow-Growing PS Tree Transplanted at 8 years old

Slow-Growing PS Tree Harvested at 28 years old 3.5m

1m

15.0 m

18.0 m

15.0 m Year 2054 S.G transplanted batch 1

1m

15.0 m

18.0 m

15.0 m

Year 2066 50% S.G harvest batch 1

431

PRODUCTIVE PARKS

Phases Detailing Productive Parks Yearly KPI

Tr a n s p l a n ti n g P e r c e n ta g e /D e v e l opment K P I

MG U G S N at i v e Tr ees

50%

100 %

100 % 0 %

0%

M G U GS N a ti v e Tr e e s

0%

10%

FG U G S N at i v e Tr ees

5%

F G U GS N a ti v e Tr e e s

S G P S Tr ees

0%

S G P S Tr e e s

0 %

Va c ant S pace * fo r ot her plant s & m aint en a n c e

40%

FG P S Tr ee

100 %

[ b ] PP [a ] PP

Tr ans pl ant i ng P er c ent age/ D ev el opment K P I

20%

F G P S Tr e e

0 %

D e fu PP

[ c ] PP

Tot al PLAB PP Nur s er y

[ d ] PP

Fa s t G r ow ing P S Tr ee

Tra nsplant ing Schedule - 2 Yrs

H o pea odor at a K h aya s enegalensis P teleocar pa lamponga

S l o w G r ow ing P S Tr ees

Tra nsplant ing Schedule - 8 Yrs

C yr t ophyllum f r agr ans S w iet enia mac r ophylla

Fa s t G r ow ing U G S N at iv e Tr e e s

Tra nsplanting Schedule - 2 Yrs

K o ompassia m alac c ens is A rdisia ellipt ic a

Mo der at e G r ow ing U G S N at i v e Tr e e s

20 4 2 y ear 4

20 3 8 y ear 0

S yz y gium glaucum S te r culia par vif lor a Ta renna f r agr ans

20 4 0 y ear 2

Tra nsplant ing Schedule - 4 Yrs

n u rse ry pr oduct ion begins

Nursery production begins in 2038 and it takes 10 years for the nursery to produce enough trees to complete the PLAB development KPI.

432

Tr a n s p l a n ti n g P e r c e n ta g e /D e v e l o p m e n t K P I

60% 0%

S G PS Tre e s

Tr ans pl ant i ng P er c ent age/ D ev el opment K P I

80%

F G P S Tr e e

100%

S G P S Tr e e s

FG P S Tr ee

100%

S G P S Tr ees

100%

100 %

20 4 8 y ear 1 0

0 %

100 % 0 %

100%

MG U G S N at i v e Tr ees

100%

M G U GS N a ti v e Tr e e s

0%

100%

M G UG S Na ti ve Trees

FG U G S N at i v e Tr ees

20%

F G U GS N a ti v e Tr e e s

15%

F G UG S Na ti ve Trees

20 4 6 y ear 8

20 4 4 y ear 6

Trans p l a n ti n g Pe rc entage/D evelopment KPI F G PS Tre e

PLAB UGS developm ent KPI com pletion support maintenance & export/redistribution demands

433

DEFU PRODUCTIVE PARK Detail Design

434

100m

435

SITE ANALYSIS Defu Productive Park

Timber Workshop

Compost + Biochar Centre

Logistics Office Soil Bank Area : 0.5 ha

+ Irrigation Pond Surface Area : 0.1 ha

3 in 1 Propagation House Seed Bank

Depth : 2 m

Volume : 2 000 000 L

+ Water Catchment Surface Area : 1 ha Depth : 2 m Volume : 20 000 000

+ Recreational Pond Surface Area : 0.5 ha Depth : 2 m Volume : 10 000 000

Retained Existing / Repurposed

+ Added

- Cut Terrain for New Watersheds Excavated Soil

- Removed Existing

3N + Recreational, Irrig Soil Remediation Soil Bank

Some existing buildings are retained and repurposed for the park infrastructure. Excavated soil from terrains that are cut for new watersheds will be remediated at the soil bank.

The existing canal will be naturalized, 3 new watersheds will be created for recreational purposes, irrigation and water catchment. Lastly, the removed existing greens for park developments will create vegetation debris that goes into the compost and biochar centre before entering the soil bank.

436

Surface Water Flow Drainage Water Flow

a

L

Cleansing Biotope Area : 1650 m2 L

[Calculations] Catchment Area : 6 ha Impervious Area : 10% Peak Runoff Rate 10 yrs ARI [m3/s] : 1.34 Cleansing Biotope Size : 1624 m2

d a L

Renaturalised Canal

Compost + Biochar Centre

Vegetation Debris

New Watershed gation Pond & Water Catchment

Scrubland

Green Spaces

Open Field

- Removed Existing Greens for New Watersheds + Nursery

+ Productive Streetscape

+ Park

437

INPUT & OUTPUT Defu Productive Park

438

439

TREE NURSERY

Defu Productive Park Perspective

440

441

TRANSPLANTING SCHEDULE IN TREE NURSERY Defu Productive Park Section

Nur ser y edges occup ie d b y f a s t g ro win g t re e s f o r e a s ie r t rans planting.

Nur ser y cent er occupie d b y s lo w g ro win g t re e s a s it re q u ires les s dis turbanc e for a prolong period.

M oderate Grow ing U GS N ativ e Trees H arv es t at 4 y ears old

Fa s t G ro wi ng U GS N ativ e Trees Ha rv e s t a t 2 y ears old

Hu ma n a c t iv it y o n ly a llo we d when tree is 50 c m in height to prev ent being tram p

4.5 m

5.0 m

3.5 m

S p a c in g 5 m to 2 m - W ider than a c onv entional nurs ery as

442

S low G rowi n g PS Tr ees Har vest H ar ve st a t 8 ye a rs old

A ll t re e s trans planted at 1m .

1m

1m

1 - 2 ° t e rra in g ra d ie n t f o r o ptim al drainage

1m

Fa s t G ro win g P S Tree Ha rv e s t a t 2 y e ars old 1m

B r oug h t o u t f ro m 3 in 1 p ro p a g a t io n h o u s e to nurs ery at 25c m .

ple d.

2. 0 m

2 .5 m

2. 5 m

3. 0 m

3.5 m

3.5 m

it is a l s o u se d fo r r ecr eat ional pur pose s . L e s s c o mp e t it io n f o r s u n a n d n u t rients .

443

NATURALISED TIMBER TREE NURSERY Defu Productive Park Pespective

444

445

446

PLAB ENGAGEMENT & EVENTS Defu Productive Park

447

448

REFLECTION

449

This studio gave me a new perspective on understanding landscape. It was also the first time to intervene in a larger scale urban planning from the perspective of landscape, which was a completely different experience from the past design courses. Revision after revision and logical deduction made me get a great exercise in this course and learn how to find the most balanced way between ideal and reality. Besides, it was also my first time encountering a bird-based topic, and it was a new experience to analyze and plan the site with birds as the main characters. I learned a lot about birds and their essential role in seed dispersal, as well as the process of forest succession. I believe this studio will help me greatly in my future study and work.

-Zhang Yuer

Under the topic of landscape connectivity with birds, I began to rethink the relationship between nature and people. What nature can offer to people is as important as how people should protect it, as this determines whether the designer's ideas will attract the people who will pay for them. Human attitudes towards nature represent an interesting duality, between the human desire to heal and refresh in nature and to satisfy their curiosity, and the abhorrence of the dangers that nature can pose. It therefore takes patience to strike a balance between conflicting demands. In many cases sacrifice is inevitable, but a good idea is possible to achieve the best of both worlds. Only an in-depth and detailed analysis of the interaction between man and nature will reveal more of these possibilities.

-Dong Liwei Under the guidance of the development and issues in Singapore, the studio enables me to re-examine the relationship between nature and nature, as well as between human and nature, so that they can connect with each other and mutually benefit each other.

The research and design started from large-scale planning of PLAB and then focused on quarter scale to neighborhood scale areas.We integrated ecological knowledge with landscape architecture to promote forest regeneration and improve people's mental health with the help of birds.This is a new challenge for us to seek the solution of how to provide a more conducive environment for birds while respecting their habits, and at the same time maintaining a reasonable relationship between human and nature.This new experience is the cornerstone of our study to figure out how can our design serve as a balance between human and nature to bring benefits to our living environment.

-Shen Yunnan 450

This semester’s studio let me shift the perspective from design to planning on a larger scale and start to think about what the landscape can do at the brownfield like an airport. Soil involved not only the soil properties but also can permeate every aspect of the landscape in the city, interwoven with the surroundings.

The soil and land are the basics of the landscape but are also the most neglected parts of the design because they are such familiar to us. We are used to cutting and filling the soil and land, but it is easy to forget that the soil itself has different personalities like humans, and it is manifested in the difference in physical and chemical properties in different environments.

After gaining a deeper understanding of soils, I realized the importance of choosing the right strategies for soil restoration and allowing them to create value for the city at the same time.

-Wang Yu

Through this studio, I have a more comprehensive understanding of landscape design. I had never touched the issues of soil transfer and treatment before, and it was this studio that made me realize that landscape can play its role in more aspects. At the same time , large-scale planning is not a small challenge. Instead of being good at detailed design, I also benefited a lot from how to balance design with the requirements of the government and the site when contacting with planning. Finally, this studio made me know more about the real design process, which made my design ideas more practical and feasible instead of being based on nothing. All in all, I am very grateful for this studio, which gives me more ideas and understanding of this field.

-Zhang Wenting

In such an era of rapid urbanization, the speed of urban renewal makes it easy for us to ignore natural factors. In this studio project, we try to plan and design the city from the perspective of landscape Urbanism. We start thinking from a micro perspective the natural factors of the site itself, link it to the macro social issues in Singapore as a whole and finally get our vision and strategy. I also benefited a lot from learning and communicating with other groups during the course. Groups with different themes negotiate and compromise with each other, and finally form a unified master plan. This way of designing is something I haven't tried before. Although our group had a hard time advancing the plan, I also learned a lot of new theoretical knowledge form other fieldsduring this process . It also made me see more potential in landscape architecture.

-Liu Kangsheng 451

The course topics this semester have given me an introduction to other areas as well, such as materials science and planning. This makes me feel that the landscape is not just about building green spaces, it actually has many entry points. In addition to this, the teacher encouraged us to incorporate future technology into consideration, and integrate the landscape design with it. The design is divided into studio part and group part, and the research direction of each group is different. So when we decided on the studio theme, we went through many rounds of negotiation. I think it's a very meaningful process that simulates multi-disciplinary cooperation.

-Jiang Yuli

At the beginning of the semester, I chose the topic of recyclable materials because I wanted to challenge a subject I had never known before. This is also the first time I have been exposed to such a large-scale planning project, so I did encounter some difficulties in discussing and determining the overall plan with other groups. However, these negotiation processes are also particularly meaningful, and helps me to build a good sense of cooperation in my later studies and work It was also a particularly good collaborative process for me within our three-person team. Thanks to my teammates and Lehana!

-Liu Ziyue

This semester’s studio has been a great challenge and a special experience for me. As the title was recycled construction material, my team and I were initially confused when we did the research as it didn't seem to have anything to do with landscape architecture.

But in the constant discussions within the group and with Lehana, I have become more and more aware of the ecological core behind this topic. The landscape major is not only to design a beautiful park, but also to deeply understand the relationship between the city, society, and ecology. At the same time, we should also have a deeper sense of social responsibility, and use the methods of landscape to deepen the society's awareness of material recycling.

-Ye Han 452

In this semester's studio, besides the traditional landscape design, the tutor led the studio to complete the plab planning and design together. Each group needed to coordinate with other themes while completing their own theme, which was a very challenging task.I learned not only how to do a large-scale planning but also how to work with a lot of people.

In our group's theme, water management, I learned the whole system of how to use water through landscape treatment. Through research of WSUD and ABC water programme, I got to know about the eco-way of water management and began to think about what can we do more about water management. Water is no longer an embellishment in landscape design, but a link between people and nature, community and history.

-Hu Die

I learned a lot from the studio this semester, guiding landscape design from a macro perspective of urban ecology. Collaboration with groups designing different topics, constant discussions and consultations have also allowed me to see PLAB in a more holistic way.

But this is the first time I've done a studio with so many groups, it's not an easy thing.

As for our group topic: water management. Under this topic we discuss the relationship of ecology, history and community to water management and water purification. Combined with the course of landscape construction this semester, my understanding of WSUS, water treatment, and water ecology has been greatly improved.

-Lin Lan

I gained a lot in the process from the field trip to PLAB in the early stage to generate strategies and finally to the derivation of design. The site investigation helped me to have a deeper understanding of the site, and brainstorming with group members inspired me to think about water management from a new perspective with more innovative approaches that integrate with technology, culture, history, and ecology.

Challenges also emerged. The scale of PLAB is so large compared to usual projects.

Such a design process was very challenging, but it also gave me a comprehensive understanding of how to adopt urban ecological principles to affect urban planning. The teamwork with each group also made me understand the importance of communication. In addition, another important thing I learned was how to craft storylines to better present the narrative of our design. Good presentation is just as important as good design.

-Jin Zhuoyin 453

Due to the huge scale and coordination amongst groups with very varied focuses, this studio project was challenging. The negotiation process was fascinating because it allowed us to see the same area of land through new lenses and understand the requirements from several angles. Our group topic proved to be more difficult than I had anticipated, as water is a fluid element with a lot to consider during the design process, as one stage of protection can severely effect other sections. Our group envisions PLAB to be a selfsustaining town model for future Singapore, but we are limited by farming and growing techniques that require a large piece of land and appear to have too much compromise to achieve our goal; instead, a more balanced and multi-functional land should be proposed in future projects. Finally, I would like to express my gratitude to my groupmates for their unwavering support during this process.

-Xing Zhiyan

This studio project had provided a unique experience which greatly involved teamwork & communication. The main challenges I faced were designing on a large scale, integration of ideas with other groups & planning for the design of an adaptable framework.

Encountering these unfamiliar challenges has helped me develop a strong appreciation for town planning & design. It was also inspiring to see the progress of my peers. I have learnt a lot from working together with my groupmates as well. Reflecting back on the project has helped me to understand my shortcomings & areas in need for improvement.

Aside from a lack of graphical & presentation skills, I need to look beyond planning & innovate more through design. The most crucial takeaway for me is the need to be decisive, understanding what I want to achieve & the ability to construct an understandable narrative.

-Janina Kwan

Master planning at a macro town-level scale proved to be a challenge this semester. With overlapping ideas, areas of focus, similar design interventions, and topics, resulted in a to-and-fro negotiation, of project hierarchy and importance, that finally led to the overall masterplan concept. The discussion pushed me to initiate conversations and constantly communicate my ideas between the different groups so that we can reach an agreement as well as better understand each other’s projects and objectives. Throughout the semester from consultation to interims, I am able to see the process and commendable works of my peers and studio mates which inspired me to push harder and try designing outside of my comfort zone, be it graphically or systematically. There is much room for improvement if more time were given, such as how we approach our topic, not limiting our design to farming, and possibly exploring further on the aquatic species.

-Sabrina Shafari

454

The soil related design of this semester gave me the opportunity to think from a more research perspective and analyze the current situation of the site more scientifically. It also made me realize that the experimental results are not the same as the design. Not just addressing problematic areas but leveraging scientific evidence to better understand the site and thus have a clearer idea of how to use existing site resources, propose a reasonable method. As a team, we share and negotiate important ideas with each other, allowing me to see soil issues from more perspectives. The studio has also enhanced my ability to think outside the box, allowing me to continue thinking about how to apply ecological concepts to more logical designs in the future.

-Zhou Sicong

The last four months of the studio have given immense knowledge and awareness on ecology particularly about soil and insects. This topic is unique in its own way as it will always have something new to learn and I really feel very grateful to be introduced to this topic with new ideas got to incorporate in large scale project of PLAB. The initial process of working as a studio with divergent thinking gave a new experience and a chance to share thoughts with each other. Studio has strengthened my ability to think, preserve and complement the natural elements within an urban setting and to implement an ideology of “Landscape comes first” to design any project in near future.

-Anchita Nitin Mirwankar

In this semester's studio, the topic of our group is about soil.

This is a relatively new research field for me. In previous projects, I did not pay much attention to the improvement of soil itself and the treatment of soil is often for water or plants.

Undoubtedly, the topic of soil is full of challenges for me. In order to better study the current situation of soil on the site, my team members and I went to the site to collect samples and analyze them in a professional laboratory, which makes us have a more comprehensive understanding of the current situation of the site. In addition, we also read a lot of literature and books related to soil and made relevant case analysis, which laid a solid foundation for our later proposal. Finally, really thanks the teacher for her guidance, which provided some important ideas and ideas when we don't know how to dig deeper.

-Cao Naichun

455

This studio has really been a productive experience for me.

Because this time we focused more on the importance of the design process rather than the design result, although it was difficult, it gave me a new perspective towards importance of knowledge about landscape processes. In addition, this time we look at the landscape design from the perspective of animals, hoping to make the urban landscape reasonably wild through selective intervention.

This learning process also allowed me to understand the complexity of seed dispersal mechanisms, and I look forward to more opportunities to continue ecological research in the future, as well as pushing my limits and learning more in my next studio.

In this studio, I really appreciate our group work. It was tough to make sure everything was successfully in progress as every of us had to negotiate with other team members. I am happy to see the team work turns out fantastic finally.

Throughout the semester, we integrated the designing with ecological knowledge then we found the interesting point of combination of different subjects. About our designing, it could be my first time that we only focused on the thinking process to get the decision of site masterplan instead of doing the detailed design. Even though it was tough, I appreciate the thinking process and integration of our group team outcomes during that time.

It’s been a challenging semester, not only because this is probably the first time I worked on a project that focuses so much on the ecological perspective, but also the first time teamed up with other thirteen classmates to come up with one overall plan. Even though there is some back and forth on certain planning issues, I consider them all to be good and necessary thinking processes to help us practice from multiple aspects.

Also, this semester involves a lot of big-scale planning methods, which I didn’t have much experience with since what we learned before focused more on the smaller scale landscape design. Now I think it’s rewarding that, after this semester, we have another set of tools to put in our back pocket for future references.

- Wanruo Chang

- Yilan Shi

- Ruozhu Xu

456

This studio is very meaningful for me. First of all, I'm glad to work with my team as our skills are complementary and our inspirations are mutually aligned. It was the first time for me tried to design in a large-scale ecological direction, and I learned a lot from this process when cooperating with each other. Junyao's capabilities in GIS analysis technology allowed us to smoothly advance the program with the available data, while the other two of us did well in proposing design ideas and drawing graphics. Our professor, Yun Hye, worked diligently to provide us with multiple guidance from analysis to design to presentation. It is an honor to work with her and I have benefited a lot.

-Liangyu Wang

A pleasure and interesting studio for me. It is worth mentioning that professor Yun Hye's guidance really pushes us forward. I communicate with her a lot during the semester, when I found her extensive knowledge of ecological planning is very helpful which help me learn more on the city-scale design. Meanwhile, the cooperation of our team is really effective, I'm happy everyone in my group tried their best to work on the project and present their efforts in the final. We did a lot interesting research and analysis and the experience inspire me to make further explore about relevant topic.

-Junyao Ren I had a really good experience in our studio this semester, the whole workflow was organized very well and went smooth. I learned a lot from my group members since we had one interesting perspective and everyone contributed a lot to delivering the final work.

In general, I’m glad this is the most effective studio I have ever had for not struggling too much with the design concept or forms but spending time to think deeply. Meanwhile, suggestions from our tutor fed our thinking process and pushed us to achieve the big picture of our project, which guaranteed to use our time and work wisely.

-Yuxi Zhang

457

During the semester, the group and I were very confused at first when we saw the topic ''Recycling natural elements as natural capital''. After many weeks of discussion with Yunhye we developed our own way of dealing with natural resources. Firstly, we realised that we needed to have a clear understanding of the resources that existed on the site before we could deal with them, such as how much of each resource there was. It took us quite a while to work out how to calculate the resources, as we had never before imagined that the number of trees in a forest could be estimated, and that the soil in a forest could be calculated. We then clarified that our aim in dealing with natural resources was to create a carbon bank for PLAB, and then on the basis of this we devised three basic strategies. The process of the design was difficult this semester, but also rewarding. I have never felt so much pressure in my previous landscape studies career and it was clear that the content of my design was of a very different depth and breadth to that of my undergraduate studies. Overall, it was painful, but rewarding.

- Siqi Cheng

The topic of our group is "Nature Resource as Nature Capital", which is a very special one. Because of its broad meaning, we need to find a subdivided theme and keep rigorous logic to conduct in-depth design.

The three of us started with the topic of carbon neutralisation and focused our attention on the three nature resources of water, soil and forest, but then started struggling for several weeks. The main reason is that we have not clearly understood the relationship between these three Nature resources and our theme, and have been thinking about water, soil and forest in a traditional and separate way, so the results of the first few weeks seem confusing.. After several weeks of communication and discussion with Yunhye and other students in the studio, we gradually got on the right track, found the internal connection between three nature resource and Carbon Bank, straightened out the logic of design and narrative, and got a relatively complete and rigorous design.

- Ruomin Jiang This semester's studio is very cutting-edge and challenging. Cutting edge in that most of the sites and buildings in Singapore are over 40 years old, and in an era of high population density and rapid global climate change, the renewal and reintegration of older landscapes and buildings into urban development is very cutting edge.The PLAB is 18.6km2, which is 2.5% of Singapore's total land area (728.6km2). On such a large site, it was challenging to come up with a conceptual plan that took into account the different ecological elements and infrastructure development. In the year 2050, when Singapore will achieve carbon neutralization, PLAB will serve as a model to demonstrate how to recycle and utilize the natural resources of the site to maximize carbon sequestration and minimize the carbon footprint. The biggest lesson I learned from the whole semester of research and design is that landscape is a dynamic process, and how to unify multiple and opposing natural resources to achieve a common goal is my biggest takeaway from the semester.

-Mingyu Zhao 458

This studio has taught me the importance of collaboration, communication, and patience.

It was an iterative process with a lot of back-and-forths from the beginning of the studio masterplan discussions to the final negotiated outcome and design strategies. Since it was mostly working as a group or as a studio, I also learnt the importance of communication.

“Good communication is the bridge between confusion and clarity.” I do agree with this quote and I truly appreciate all the time we took to discuss, make decisions and clarify any confusion. Lastly, I learn to have patience with all things. But, first of all with myself. To me, these are difficult but important lessons to grow as a person.

- Chai Xin Yi

Having gone through this design studio that is centred around PLAB and designing for the needs of a city, has equipped me with new knowledge on designing on a larger scale. It was definitely a challenge for everyone in the studio as we were pushed to think bigger as landscape architecture students. As we had to generate a studio masterplan, it really pushed us to work together as a class, negotiating with the various studio groups on topics such as nature and the built environment. A lot of interesting perspectives and dialogue came out of these discussions and I really appreciate having been given the opportunity to learn from my peers that come from various educational and national backgrounds this semester.

- Cynthia W

459

As a studio product which is not censored, this book may contain mistakes or deficiencies.

Proposed ideas may not represent the positions of NUS.

Published by Department of Architecture School of Design and Environment National University of Singapore 4 Architecture Drive Singapore 117566 Tel: +65 65163452 Fax: +65 67793078 Copyright © 2022 Hwang Yun Hye and Guo Lehana (ed.)

ISBN: 978-981-18-4626-7

Student Editors Liu Kang Sheng Hu Die Mirwankar Anchita Nitin Zhou Sicong Copyright © 2022 Hwang Yun Hye and Guo Lehana (ed.)

ISBN: 978-981-18-4626-7