SYMBIOSIS PORTFOLIO OF JUNTIAN CHEN 2019-2021
WORKING SAMPLE FOR INTERN 2021 IN HENNING LARSEN
CONTENTS 01. LAVA DIVERSION
Design research of lava-prevention infrastructure, Fogo island
02. URBAN (CIRCULAR) FOOD SYSTEM
Facilitating circular food production infrastructue in Gothenburg
+
Project 02/04
+
Project 05
+
Project 01
03. REORGANIZATION of RECLAMATION
+
Remediation strategies for idle tidal flat reclamation area in Yancheng
Project 03
04. GREEN LINK
Ecological corridor in Frölunda-Högsbo, Gothenburg
05. RUN WITH LIFE
Remediation of the floodplain + sports park, Ji An
06. NEW GROUND
Redesign for Piazzale Roma, Venice
01.
02 Urban (Circular) Food system Facilitating circular food production model in Gothenburg
Urban food production
SITE: Gothenburg, Sweden TYPE OF PROJECT: Master thesis project SUPERVISOR: Jorge Gil, Jonathan Cohen Compost
Food industry BRIEF
Peri-urban food production
Nutrients recovery
Residential building
According to the waste management plan of Gothenburg, Gothenburg are planning to reduce the food-waste production by 50% per inhabitant in 2030, while 20% more food waste should be sent to nutrition recovery or biogas or other equivalent purpose. In order to realize the goal of waste reducing and recycling. New system, service and facilities in the urban food waste recyclingsystem are required. In this thesis I will explore how urban planing and design can support facilitaing circular economy in city by choosing the integration of foodwaste recycling system and future’s local food production planning ( ’Stadslandet” ). Scenario planning ,evaluation of keep performance indicators (KPIs) and geodesign methods will be applied in the project.
Current linear urban food production and food(bio) waste recycling system in Gothenburg
Flow type A. (from household foodwaste to energy and existing agriculture)
This map shows all of the actors related to current foodwaste recycling flow in Gothenburg. This map will be the starting point of next step flow mapping.
Flow type B. (from sewage slurry to energy and peri-urban agriculture)
Flow type C.(from industrial foodwaste to energy/peri-urban agriculture)
Food waste Input
Foodwaste Processing
Resource Output
1.Household foodwaste 2.Peri-urban farmland 3.Food market 4.Food industry 5.Sewage system
1.Renova-Marieholm (Pre treatment) 2.Gryaab(Slurry treatment and biogas production) 3.ST1 Refinery(Biorefinery) 4.Gothenburg energy(From biogas to biofuel)
1.Gothenburg energy (district heating) 2.Renova CHP plant(heating and energy production) 3.Biofuel stations 4.Surrounding farmland
Flow type D. (from grazing waste to peri-urban crop production)
strategies for improving circularity in current food system
MFA (Material flow analysis) based evaluation of current food system Data analysis A-Food demand in 2030 + Relevant demand of resources
STEP1.Implement new food production actors in urban and periurban area
1. Es�ma�on of food demand of Gothenburg in 2030+ Area for food produc�on kg/person/year
Demand2030
yield,kg/ha
Area2030(average)
Wheat flour
6.6
4365952.8
6080
718.0843421
Rye flour
Consumption of each types of crops
0.1
66150.8
6510
10.16141321
Oatmeal and other cereals
3.9
2579881.2
4960
520.1373387
Area(low biointensive methods) AreaMedium biointensive methods
Flour of mixtures of wheat and rye and flour of other cereals
0.3
198452.4
3384
58.64432624
Total flour and ground
17.4
11510239.2
potato
46.5
30760122
36200
849.7271271
Carrots
9.6
6350476.8
61300
103.5966852
88.54417535
51.79834258
Cucumbers(green house)
6.2
4101349.6
443300
9.25186014
7.907572769
4.62593007
183 216 3
1307.02742
492 3
onion
8.1
5358214.8
46300
115.7281814
98.91297558
57.86409071
salad
14.7
9724167.6
19700
493.6125685
421.8910842
246.8062843
Cabbage, red cabbage, Brussels sprouts, kale, broccoli
4.7
3109087.6
27400
113.4703504
96.98320544
56.73517518
other kitchen plants
7.4
4895159.2
33700
145.2569496
124.1512389
72.62847478
leek
0.8
529206.4
30200
17.52339073
14.97725703
8.761695364
Cauliflower
1.5
992262
17300
57.35618497
49.02238032
28.67809249
other root plants
1.6
1058412.8
34100
31.03849853
26.52863123
15.51924927
9
5953572
396500
15.015314
12.83360171
7.507656999
63.6
42071908.8
1101.849983
941.7521226
550.9249917
tomato(greenhouse) Total vegetable
Area(Current Situation)
+
+ + ++ + + + ++ + +++ + ++
Expand
≈30
2. Summary of land area demand based on demand of food and methods of growing LAND DEMAND(2030MAX)
LAND DEMAND(2030)
LAND DEMAND(2030MIN)
FLOUR/CEREAL PRODUCT
1307ha
1307ha
1307ha
492ha
VEGETABLE PRODUCT
1101ha
942ha
551ha
≈30ha
POTATOES PRODUCT
849ha
849ha
849ha
CURRENT AREA
3ha
Expand
3. Es�ma�on of nutri�on demand based on land area, species and types of fer�lizer Crops Type （N）
Mineral fertilizers
Plant-available nitrogen(manual)
107
10
51
9
96
5
Total nitrogen(manuel)
demand(max)mineral/manuel
demand mineral/manuel
demand（min)mineral/manuel
28
13070/36596kg
13070/36596kg
13070/36596kg
27
56151/29727kg
48042/25434kg
28101/14877kg
11
81504/9339kg
81504/9339kg
81504/9339kg
Manuel
demand(max)
demand
demand(min)
7
15684/9149
15684/9149
10
7
11010/7707
9420/6594
potatoes product
38
3
32262/2547
32262/2547
32262/2547
Crops Type （K）
Mineral
Manuel
demand(max)
demand
demand(min)
cereals product
15
28
19605/36596
19605/36596
19605/36596
vegetables product
26
29
28626/31929
24492/27318
14326/15979
potatoes product
192
8
163008/6792
163008/6792
163008/6792
cereals product vegetables product potatoes product Crops Type （P）
Mineral
cereals product
12
vegetables product
AREA2030(mineral/manuel) max/kg AREA2030(mineral/manuel)/kg 150725/75662
P DEMAND(total) K DEMAND(total)
142616/71369
AREA2030(mineral/manuel)min/kg
CURRENT (mineral/manuel) /kg
122675/60812
54569/14647
58956/19403
57366/18290
53456/15553
6330/3670
211239/75317
207105/70706
196939/59367
8751/14698
3257ha
3098ha
2707ha
≈526ha
AREA DEMAND FOR GROWING
RESOURCE DEAMND
5510/3857
Expanded farming and circular system in the urban area
4. Summary of nutrients demand and land area based on Gothenburg’s food demand N DEMAND(total)
15684/9149
RESOURCE DEAMND
local resources from food-waste STEP2.Improve
levels
+
% % % % % %
a.Renova pre-treatment a.Renova pre-treatment
FOODWASTE INPUT ACTORS
Resource flow RESOUECE-OUTPUT % %
FOODWASTE PROCESSING ACTORS
a.Renova pre-treatment a.Renova pre-treatment
Household foodwaste
Pre-treatment facility
ST1 bio-refinery
c.ST1 Biorefinery c.ST1 Biorefinery
Foodwaste
b.Gryaab Sewage plant
d.Göteborg Energi d.Göteborg Energi
b.Gryaab Sewage plant
CHP plants of Gothenburg
Industrial foodwaste
Gryaab sewage plant
Waste Plan in 2030
Actor's production demand (Heating)
Total foodwaste:25799t/yr
Renewable + Heat recovery: c.ST1 Biorefinery 100% in 2025
Foodwaste for for Biotreatment(2020) Biotreatment (2020) (18661t less than 2020)Foodwaste
Foodwaste for biotreatment.18059t/yr %
(4171t less than 2020)
( /y)
Biotreatment (50%) Biotreatment(70%)
Other Othertreatmenr(50%) treatment(30%)
/yr
Foodwaste Foodwaste for for Biotreatment(2020) Biotreatment (2020)
Foodwaste for Biotreatment (2030)
%
%
2020) (11% more production c.ST1than Biorefinery
Actor's production demand (Electric) Renewable power:
100% in 2040
(29% more production than 2020)
% % % % % %
Current user a.Peri-urban Agriculture
Current user a.Peri-urban Agriculture
+
% % % % % %
+
Current user a.Peri-urban Agriculture
Peri-urban agriculture
Current user b.Biofuel sta�ons Poten�al user:.Stadslandet Göteborg District greenhouse of the city.
+
Future's actors
% % %
Demand of nutrients for growing regional • food in 2030 (population:661508) kg/ha •
+
Poten�al user:.Stadslandet Göteborg District greenhouse of the city.
Nutrients
% %
% %
Other Othertreatmenr(50%) treatment(30%)
/yr
Foodwaste for Biotreatment (2030)
%
( /y)
%/ /yr
• Average demand for N: 142616(mineral);71369(mamual) Poten�al user:.Stadslandet Average demand forGöteborg P: 57366(mineral);18290(manual) District greenhouse of the city.
Average demand for K: 207105(mineral);70706(manual) (N=Nitrogen;P=Phosphorus;K=Potassium)
STEP3.Balance strategy for gap of resource demand between actors HOW TO BALANCE THE GAP?
BALANCE Population in 2030: 661508 (1.5% incerease every year) Estimation of total vegetable consumption in 2030 based on population : 42071908.8kg Estimation of total potatoes consumption in 2030 based on population : 30760122kg
Other treatment(30%)
Improve
+ _+ ++ + + ++ + +++ ++
d.Göteborg Energi
( /y)
Biotreatment(70%)
Expand farming in the peri urban area
+ • • • • • •
Estimation of total flour/cereal consumption in 2030 based on population : 11510239.2kg
Biotreatment (50%) Biotreatment(70%)
GAP OF DEMAND IN THE NEW SYSTEM
Improve
Current user b.Biofuel sta�ons Biofuel station
% %
Composition of Gothenburg's district heating
Composition of total electricity sales
+
Support
Current user b.Biofuel sta�ons
Energy % %
%
Resources for industri-
Actor's (ST1) demand for foodwaste input d.Göteborg Energi Expected Industrial foodwaste for production: 21000t (13800t more input than 2020)
( /y)
ACTORS
+ +
b.Gryaab Sewage plant b.Gryaab Sewage plant
RESOURCE DEAMND
Support
circularity the food system in different recycling al bioofrefinery
_
Data analysis B-Gap of resources between actors after expanding food production
+
More industrial food waste as resource input
Resources for industrial bio refinery and peri urban farming
+ +
Exis�ng Farmland
New food produc�on act Exis�ng Farmland
New food produc�on act
Optimization of urban food production flow (Linking urban food production to foodwaste recycling system)
Community garden
New flow type A.(from household food waste to urban/ peri-urban food production and energy)
A-The first type of circular low (from household food waste to urban/peri-urban food production)
District greenhouse
Mapping the circular steps in future's household circular food production and waste recycling system
Roof-top farming in industrial area
Peri-urban start up companies
Map of actors in future's household related circular food production system
Mapping the circular steps in the food-industrial&agriculture waste recycling
Urban circular food production flow diagram (from household food waste to resource)
Local treatment facility
+ Local food produc�on <
Household <
< < /
< / Gryaab = <
Marieholm.
Peri-urban food produc�on
+
+ +
<
Biofuel sta�on
CHP plants
<
+
+
+
+
+
+
+ +
+
+
+
+
+ +
+ +
+ +
+
+
STEP1 household food waste to new actors (local food production) with treatment facilities and and central treatment facility
CHP Renova
+
+
+
+ STEP2 Local facilities for reusing greywater and from pretreatment facility to sewage + plant
+
+
++
+
+
+
New flow type B (from sewage to resources for peri B.The second type of circular flow (from sewage to urban/peri urban/urban food production) urban food production)
+
(suitable) sewage water
<
Building
Sewage(Sludge) <
+
+
+
+ Local food produc�on
Gryaab
<
<
Biofuel sta�on
+
+
Peri-urban Agriculture
CHP plants
+
+
+ STEP3 From sewage plant to CHP&Agriculture
STEP4 From CHP to biofuel station
+
+ New actors + Relevant treatment facilities
+
c.ST1 Biorefinery
Optimization of urban food production flow------From linear to circular (link peri urban agriculture to industrial foodwaste)
Bakery and food industry
Marieholm waste recycling centre
CHP(Combined heat and power)
Mapping the circular steps in future's industrial and agriculture circular food production and waste recycling system
C.The third type of circular flow (from food industry and food markets to local/peri-urban agriculture and energy)
Mapping the circular steps in the food-industrial&agriculture waste recycling
Food Industry
>
>
Peri-urban Agriculture (Crop/Animal)
>
+ ST1 Bio-refinery
Biofuel sta�on >
Specific food market
Building
. . . .. . . . . . .. . . . .. . . . . . . STEP1
More industrial-food waste or commercial food waste to ST1 bio-refinery
Peri-urban farmland
Agriculture % Current user a.Peri-urban
a.Renova pre-treatment
New flow type C: (from food industry and food markets to local/peri-urban agriculture and energy)
d.Göteborg Energi
+
. .
..
.
.+
.
.
% %
c.ST1 Biorefinery
STEP2 Bio-refinery to biofuel stations&africulture
.
.
.
.
.
.
%
.
.
.
%
.
.
.
Building
Peri-urban agriculture
Linking resource from grazing field to crops field; More digestion facilities
.
.
d.Göteborg Energi
local-CHP
Urban circular food production flow B. (from industrial foodwaste to resource) b.Gryaab Sewage plant Current user b.Biofuel sta�ons
Poten�al user:.Stadslandet Göteborg District greenhouse of the city.
+
%
Map of actors in future's food industry and agriculture related circular food production system
New (from residual/grazing waste towaste localto D.The flow fourthtype type D: of circular flow (from residual/grazing nutrients andand energy) local nutrients energy
Grazing Field
% %
.
URBAN (CIRCULAR) FOOD SYSTEM IN GOTHENBURG CIRCULAR FOOD SYSTEM AT URBAN SCALE
Circular production at urban scale Suitable landfood for new food productionmodel actors
Supporting Infrastructures
in Gothenburg Map of suitableRegion location for 4 main new urban food production actors based on GIS
Balance strategy between resources demand of actors in Balance circular food production model for gap ofsystem resource between actors in future's flow
(After expanding urban food production)
Food production actor example 1 Community garden in Gothenburg
Local treatment Potential local water resources and rainwater collecting locations
(suitable) sewage water <
Household <
< < /
Food production actor example 2 Local food-waste recycling buisiness (from food waste to fertilizer for local food production)
Local food produc�on
Agriculture
<
< / Gryaab = <
Marieholm.
Biofuel sta�on
CHP plants
<
CHP Renova
HOUSEHOLD FOODWASTE BASED RESOURCES FOR FARMING Transportation network for local food production and logistic actors
4 Main new local food production actors
INDUSTRIAL FOODWASTE BASED RESOURCES FOR FARMING
Community Garden
IoT enabled foodwaste digestor
Allotment garden
Food Industry
Fertilizer storage
>
>
>
+
District greenhouse (Parking lot based)
ST1 Bio-refinery
District greenhouse
Local CHP (combines heat and power)
Potential green structure( green buffer for reducing nutrients from food production)
IoT enabled digestor Rainwater storage and purification
Local biowaste digestor Parking lot
Bioswale for collecting rainwater
Specific food market
Biofuel sta�on >
Building
Fish-vegetable symbiosis farm (Roof-top based)
Biowaste digestor Rooftop fish-vegetable symbiosis production
Grazing Field
Peri-urban green start up (Greenhouse) Local CHP (combines heat and power)
Rainwater storage and purification Local biowaste digestor
Peri-urban green start-up companies Outdoor food production
Agriculture (Crop/Animal)
IoT and smart devices for waste management and local resources management
local-CHP
BALANCE
Sewage water
URBAN (CIRCULAR) FOOD SYSTEM IN GOTHENBURG CIRCULAR FOOD SYSTEM AT NEIGHBOURHOOD SCALE
Circular food production model at neighbourhood scale ( Typical areaA: Community garden)
Community Garden
Circular food production model for community garden
Prototye (key actor) of future's community garden
Dist (Par
Circular food production model of future's community garden
SM AR IoT CO ENA NT BLE AIN D ER FOO
DW AS
TE
IoT enabled foodwaste digestor
TG
RID
Biogas based Power Fertilizer
Food-waste
Allotment garden
Parki
Fertilizer storage
Fertilizer for urban-green
AL
LO TM
EN
TG
Purified water
AR
DE
N
Local food
Suitable locations Suitable site for community garden
for community garden (Proximity to urban green, local compost and potential runoff )
DE
RE
SID
EN
TIA
LA
RE
A
Suitable l
TE
NT
IO
NP
ON
D
Runoff Runoff
Bike
Runoff
Tricycle
Truck
Car
Walking
Tractor
Bus
Power flow Food waste flow Water flow Food flow
UR
BA
NR
UN
OF
F
Fertilizer flow
ZOOM-IN AREA
Typical area
Application of
Application the circular model the circularofmodel on site
Fish-vegetable symbiosis farm (Roof-top based)
Zoom in area
Circular food production model for rooftop farm
Peri (Gre
Circular food production model at neighbourhood scale (Typical areaB: District greenhouse)
District greenhouse Prototye (key actor) (Parking lot based) of district greenhouse
Circular food production model for district greenhouse Circular food production model of future's district greenhouse
District greenhouse
Local CHP (combines heat and power)
SM AR FA R
ME
IoT enabled digestor Rainwater storage and purification
R’S
MA R
KE
Runoff
TG
RID
Local food
T
Biogas based Power
Local biowaste digestor Parking lot
Local food
BIO
DI
ST
SW AL
Bioswale for collecting rainwater
E
RIC
TG
RE
Runoff
Food-waste
EN
HO
US
E
Purified water
Suitable locations for district greenhouse
DE
Suitable site for parking lot based district green house
TE
NT
IO
N
Local food
Local food
LO G
IST
PO
ND
Bike
Stream
Power flow
Tricycle
Truck
Water flow
Car
Walk
Food flow
Tractor
Bus
Food waste flow
Runoff
RE
SID
IC
CE
NT
ER
EN
TIA
LA
RE
A
Fertilizer flow
ZOOM-IN AREA
Typical area
Application of Application the circular model the circularofmodel on site
Zoom in area
Peri-urban green start up companies Circular food production model for peri-urban green start up companies (Greenhouse based)
Food produced locally Agriculture waste
Manure
Functional edge Filtration buffer
Aerobatic digestion
Aerobatic digestion
Riparian buffer
Filtration buffer
Circular food production model at neighbourhood scale (Area with community garden and district greenhouse)
Grass strip
Buffer for nutrients removal
Detention pond
Forest
Agroforestry
Pasture
Buffer zone
Buffer zone Intercropping field
Stream
Bio swale
Intercropping field
Bio swale
Intercropping field
Permeculture park
Detention pond with buffer
Farmer’s market
Peri-urban green start up
Detention pond
Peri-urban green start up
Railway station
Biogas based heat
Biogas
Forest
Connect to Smart grid
Food produced locally Food waste
Agriculture waste
Typical area A Tram line
Filtration buffer
Local CHP
Biowaste based fertilizer
Typical area
Forest
Filtration buffer
Biogas based heat
Suitable locations for community garden
To other local food market
Agriculture waste
Agroforestry
Detention pond
1 Urban Community Green
Community garden
garden
Urban Green
Community garden
Local compost
Detention Waste Community pond room garden
Local compost
Urban Green
Urban Green
Agriculture waste
Aerobatic digestion
Miljonprogrammet Apartment
Community Urban garden Green
REKO ring market
Typical area B
Aerobatic digestion
District greenhouse
Detention pond with buffer
Wind buffer
Dag Hammarskjöldsleden
Rooftop fish-vegetable symbiosis farm
Wind buffer
Biogas based heat
Biowaste based fertilizer
Biowaste based fertilizer
Food produced locally
To other local food market
Agriculture waste
Agriculture waste Aerobatic digestion
Aerobatic digestion
Local CHP
Vertical aquaponic crops
Outdoor Food production
Rooftop greenhouse COOP
Grey infrastructure
Wind buffer
Tram line
Industrial warehouse
Rooftop fish-vegetable symbiosis farm
Road
Rooftop fish-vegetable symbiosis farm
Permeable Parking lot
Boulevard Permeable Parking lot
1'
Offices building
Industrial building
Boulevard
Green corridor
Rooftop fish-vegetable symbiosis farm
Biowaste based fertilizer
Connect to Smart grid
Biogas based heat
Systemic section 1-1'
Green Corridor
Detention pond
Local food market
Biowaste based fertilizer
Connect to Smart grid
Biogas based heat
LEGEND Energy flow Energy produc�on flow Fer�lizer flow
Food (bio) waste flow Regional and local food flow Suppor�ng infrastructures
Local compost
local CHP
Community garden
IoT enabled foodwaste collector
district greenhouse
agroforestry
Residen�al building and local market
Food produced locally Food waste
Agriculture waste
Local compost
Forest
Tram line
Agroforestry
Detention pond
Urban Green
Community garden
Community garden
Urban Green
Community garden
Detention Waste Community pond room garden
Local compost
Urban Green
Urban Green
Community Urban garden Green
Agriculture waste
Miljonprogrammet Apartment
REKO ring market
District greenhouse
Aerobatic digestion Aerobatic digestion
Detention pond with buffer
Wind buffer
Dag Hammarskjöldsleden
Wind buffer
Rooftop fish-vegetable symbiosis farm Biogas based heat
Biowaste based fertilizer
Biowaste based fertilizer
Application circular model Zoom in area Circular food production model at neighbourhood scaleof( the Typical area: Rooftop fish-vegetable symbiosis farm)
Fish-vegetable Prototye (key actor) symbiosis farm of future's rooftop fish-vegetable symbiosis farm (Roof-top based)
Circular food production rooftop farm Circular food production model of rooftop model fish-vegetablefor symbiosis farm
SM AR
Biowaste digestor
Biogas based Power
TG
RID
Rooftop fish-vegetable symbiosis production
Peri-u (Gree Local food
FA R
Local food
ME
R’S
MA R
KE
T Local food
Purified water RO O FA FTO RM P FIS H
LO G
IST
Food-waste
-VE
GE
IC
CE
NT
ER
TA B
LE Local food
DE
TE
NT
FO
IO
Suitable locations Suitable site for fish-vegetable symbiosis farm
N
OD
PO
for rooftop fish-vegetable symbiosis farm (Rooftop of industrial building)
T
Suitable loc green start farmland
Local food
Runoff Local food
UR
BA
Bike
Typical area
M AR
KE
ND
N
RE
SID
RU
NO
FF
Tricycle
Stream
Car
Truck
Tractor
Walking
Pipe
Bus
Power flow
TIA
LA
RE
Runoff
Food waste flow Water flow Food flow Fertilizer flow
Zoom-in area
Application of
the circular model onmodel site Application of the circular
EN
Zoom in area
A
Food produced locally
Circular food production model at neighbourhood scale (Area with rooftop fish-vegetable symbiosis farm)
Agriculture waste
Manure
Functional edge
Filtration buffer
Aerobatic digestion
Riparian buffer
Aerobatic digestion
Filtration buffer
Grass strip
Buffer for nutrients removal
Suitable locations for fishvegetable Detention farm Forest symbiosis
Agroforestry
pond
Pasture
Buffer zone
Stream
Buffer zone Intercropping field
Bio swale
Intercropping field
Bio swale
To other local food market
Agriculture waste
Filtration buffer
Intercropping field
Filtration buffer
Local CHP
Permeculture park
Detention pond with buffer
Farmer’s market
Peri-urban green start up
Detention pond
Peri-urban green start up
Railway station
Biogas based heat
Biogas based heat
Biogas
Forest
Connect to Smart grid
Biowaste based fertilizer Typical area
Food produced locally Food waste
Agriculture waste
Typical area Forest
Tram line
Agroforestry
Detention pond
Urban Green
Community garden
Community garden
Urban Green
Community garden
Local compost
Detention Waste Community pond room garden
Local compost
Urban Green
2'
Community Urban garden Green
Urban Green
Agriculture waste
Aerobatic digestion
Miljonprogrammet Apartment
REKO ring market
Aerobatic digestion
District greenhouse
Detention pond with buffer
Wind buffer
Dag Hammarskjöldsleden
Rooftop fish-vegetable symbiosis farm
Wind buffer
Biogas based heat Biowaste based fertilizer
Biowaste based fertilizer
Food produced locally
To other local food market
Agriculture waste
Agriculture waste Aerobatic digestion
Grey infrastructure
Wind buffer
Local CHP
Vertical aquaponic crops
2
Aerobatic digestion Outdoor Food production
Rooftop greenhouse COOP
Tram line
Industrial warehouse
Rooftop fish-vegetable symbiosis farm
Road
Rooftop fish-vegetable symbiosis farm
Permeable Parking lot
Boulevard Permeable Parking lot
Offices building
Industrial building
Boulevard
Biowaste based fertilizer
Connect to Smart grid
Rooftop fish-vegetable symbiosis farm
Green Corridor
Detention pond
Local food market
Biowaste based fertilizer Biogas based heat
Systemic section 2-2'
Green corridor
Connect to Smart grid
Biogas based heat
LEGEND Energy flow Energy produc�on flow Fer�lizer flow
Food (bio) waste flow Regional and local food flow Suppor�ng infrastructures
Roo�op fish-vegetable symbiosis farm
local CHP
Local compost
CHP
Residen�al building and local market
IoT enabled Foodwaste collector
Sewage plant
biogas
Food produced locally
To other local food market
Agriculture waste
Agriculture waste Aerobatic digestion
Vertical aquaponic crops
Local CHP
Aerobatic digestion Outdoor Food production
Rooftop greenhouse COOP
Grey infrastructure
Connect to Smart grid
Wind buffer
Tram line
Industrial warehouse
Rooftop fish-vegetable symbiosis farm
Road
Rooftop fish-vegetable symbiosis farm
Permeable Parking lot
Boulevard Permeable Parking lot
Offices building
Biowaste based fertilizer
Industrial building
Boulevard
Green corridor
Rooftop fish-vegetable symbiosis farm
Green Corridor
Biowaste based fertilizer Biogas based heat
Biogas based heat
Detention pond
Local food market
Connect to Smart grid
Circular food production model at neighbourhoodApplication scale of the circular model (Typical area: Peri-urban green start up companies and existing farm)
Zoom in area
Peri-urban green start up companies Circular food production model for peri-urban green start up companies Prototye Circular food production model of peri-urban green start up companies (Greenhouse based) of future's peri-urban green start up companies Local CHP (combines heat and power)
Runoff
Purified water
SM AR GR
Rainwater storage and purification
AZ
IN
G
Fertilizer
TG
RID
FIE
LD
Local biowaste digestor
Biogas based Power
Agri-waste
DE
TE
NT
IO
N
Purified water
PO
SW AL
WA S
Runoff
Outdoor food production
BIO
Fertilizer BI O
TE
ND
Peri-urban green start-up companies
Runoff
PE
RM
E
Agri-waste
DI
ST OR
Agri-waste
EC
UL TU
RE
FIE
LD
Local food
FA R
ME
R’S
GE
MA R
KE
Fertilizer
Local food
Local food
PE R GR I-UR EE BA NH N OU S
Local food
T
Local food
E
Runoff
Suitable locations for peri-urban Suitable green startsite up companies and existing for peri-urban green start up companies. farmland
FO
OD
MA R
KE
(Proximity to existing farm)
LO G
T
IST
Local food
Typical area
Bike
Runoff
Tricycle
Truck
Power flow Food waste flow
Car
Walking
Tractor
Bus
UR
BA
Water flow
Zoom-in area
Application of
RU
FF
Fertilizer flow
Application of the circular the circular model onmodel site
N
NO
Food flow
Zoom in area
IC
SC
EN
TE
R
Food produced locally
Circular food production model at neighbourhood scale (Area with peri-urban green start up companies and existing farm) Agriculture waste
Manure
Functional edge
Filtration buffer
Aerobatic digestion
Riparian buffer
Filtration buffer
Grass strip
Buffer for nutrients removal
Suitable locations for peri-urban green start up companies and existing farmland Forest Detention Agroforestry
Pasture
pond
Buffer zone
Stream
Buffer zone Intercropping field
Bio swale
Intercropping field
Bio swale
Aerobatic digestion
Filtration buffer
Intercropping field
To other local food market
Agriculture waste
Filtration buffer
Local CHP
Permeculture park
Detention pond with buffer
Farmer’s market
Typical area
Peri-urban green start up
Detention pond
Peri-urban green start up
Railway station
Biogas based heat
Biogas based heat
Biogas
Forest
Connect to Smart grid
Biowaste based fertilizer
Food produced locally Food waste
Agriculture waste
Local compost
Local compost
Agriculture waste
Aerobatic digestion
Miljonprogrammet Apartment
Aerobatic digestion
3 Forest
Tram line
Agroforestry
Detention pond
Urban Green
Community garden
Community garden
Urban Green
Community garden
Detention Waste Community pond room garden
Urban Green
Community Urban garden Green
REKO ring market
District greenhouse
Detention pond with buffer
Wind buffer
Dag Hammarskjöldsleden
Rooftop fish-vegetable symbiosis farm
Wind buffer
Biogas based heat
Typical area
Biowaste based fertilizer
Urban Green
Biowaste based fertilizer
Food produced locally
To other local food market
Agriculture waste
Agriculture waste Aerobatic digestion
Aerobatic digestion
Local CHP
Vertical aquaponic crops
Outdoor Food production
Rooftop greenhouse COOP
Grey infrastructure
Wind buffer
Tram line
Industrial warehouse
Rooftop fish-vegetable symbiosis farm
Road
Rooftop fish-vegetable symbiosis farm
Permeable Parking lot
3'
Boulevard Permeable Parking lot
Offices building
Industrial building
Boulevard
Green corridor
Rooftop fish-vegetable symbiosis farm
Biowaste based fertilizer
Connect to Smart grid
Systemic section 3-3'
Biogas based heat
Detention pond
Local food market
Connect to Smart grid
Biogas based heat
LEGEND Energy flow Energy produc�on flow Fer�lizer flow
Green Corridor
Biowaste based fertilizer
Food (bio) waste flow Regional and local food flow Suppor�ng infrastructures
Peri urban green start-up companies
Cul vated cropland
Residential building and local market
anaerobic diges on & local CHP
Pasture
Sewage plant
biogas
CHP
Food produced locally Agriculture waste
Manure
Functional edge Filtration buffer
Aerobatic digestion
Aerobatic digestion Riparian buffer
Filtration buffer
Grass strip
Buffer for nutrients removal
Forest
Detention pond
Agroforestry
Pasture
To other local food market
Agriculture waste
Buffer zone
Stream
Buffer zone Intercropping field
Bio swale
Intercropping field
Bio swale
Filtration buffer
Intercropping field
Detention pond with buffer
Filtration buffer
Local CHP
Permeculture park
Farmer’s market
Biogas based heat
Biogas based heat Biowaste based fertilizer
Peri-urban green start up
Detention pond
Peri-urban green start up
Railway station Biogas
Forest
Connect to Smart grid
03.
Ecological importance of the site
Study of the Jiangsu tidal flat and coastal environment
Current reclamation process
Idle land after reclamation Tidal flat and salt marsh
A.build concret barrier
B.Salt elimination
C.Agriculture&water channel
Idle land after tidal flat reclamation
Pollution from local industry Industry in the reclamation zone
Intensive aquaculture Intensive aquaculture
Future planning of tidal flat reclamation and landcover change in the research zone In the coastal area of Jiangsu Province, according to current coastal reclamation and development plan of the province (2010), the distribution and management of the land for reclamation is based on the area between 2 different river esturies along the coastal line. In the map below, the future plan of tidal flat reclamation area between different esturies in 3 municipalities (Nantong, Yancheng and Lianyungang) are mapped based on the study of literature and existing document. In this project, Rudong is chosen to be the research zone for further study
Future planning of tidal flat reclamation The distribution of the reclamation area is based on the location of esturies
Reclamation plays a vital role in providing land for urban expansion and guaranteeing the food security for the Jiangsu Province (Yu and Xu.2017). Recent land reclamation schemes will cause 44%–45% loss of the most important ecotopes on mid-range and low-range littoral zones (Muller et al.2020). Based on the data from landsat 4-8, The maps below shows the trend of different types of landcover. In summary, the right chart shows that the area of tidal flat has been declining since 2000 and the area of land reclamation has been growing since 1996.
Research zone (Rudong country)
140000
100M²
120000
Land reclamation
100000 80000 60000 40000
Tidal flat
20000 0 1995
2000
2005
2010
2015
Landcover change in the research zone
Landcover (2000)
Landcover (1995) LA N D CO VER (1995)
LA N D CO VER (2000)
Built area and agriculture: 727991100m²
A griculture and building:727991100M ²
42759000m² BBare areland:land: 42759000M ²
Ti dal flat:500102100M ² Tidal flat: 500102100m²
Landcover (2005)
Landcover (2010)
LA N D CO VER (2005)
LA N D CO VER (2010)
743504400m²
area and agriculture: ABuilt griculture and bui lding:895839300M ²
75237300m² BBare areland:land: 75237300M ²
128404800m² BBare areland:land: 128404800M ²
AAquaculture: quaculture:73177200M 73177200m² ²
AAquaculture: quaculture:46798200M46798200m² ²
TiTidal dal flat:382016700M ² flat: 382016700m²
Ti dal flat:300813300M ² Tidal flat: 300813300m²
Landcover (2015)
LA N D CO VER (2021)
884268000m²
B Bare areland:land: 142115400M ² 142115400m²
ABuilt griculture and bui lding:919288800M ² area and agriculture:
A quaculture:147304800M ²
Tidal flat: 271883700m²
Tidal flat:178367400M ²
Tidal flat:271883700M ²
919288800m²
BBare areland:land: 117594900M ² 117594900m²
Aquaculture: 106347600m²
A quaculture:106347600M ²
895839300m²
Landcover (2021)
LA N D CO VER (2015) A Built griculture and bui lding:884268000M ² area and agriculture:
718479000m²
AAquaculture: quaculture:33068700M33068700m² ²
flat: 395082900m² TiTidal dal flat:395082900M ²
area and agriculture: ABuilt griculture and bui lding:743504400M ²
ABuilt griculture and bui lding:718479000M ² area and agriculture: BBare areland:land: 85581000M ² 85581000m²
AAquaculture: quaculture:32673600M32673600m² ²
Aquaculture: 147304800m² Tidal flat: 178367400m²
2021 Year
Current landuse pattern and landuse trajetories of 3 different reclamation area Based on previous study, there are 3 typical landuse pattern based on different suitability: 1. Not suitable for both agriculture and urban development ("Tidal flat→halophytes→cropland") , 2. Suitable for agriculture ("Tidal flat→halophytes→aquaculture pond→cropland"). 3. Suitable for urban development ("Tidal flat→halophytes→cropland→construction land" in the central part of the province's coastal area).
1: Not suitable for both agriculture / urban development
3: Suitable area for urban development
Aquaculture
Greenhouse
Crop land
2: Suitable area for agriculture / aquaculture
Halophytes
Urban development
Crop land
Halophytes
Tidal flat
SITE
Idle land
Halophytes
Tidal flat
SITE
SITE Crop land
Landuse trajetories and relevant soil problems Idle tidal flat Suitable soil for farming Eutrophication of water Eutrophication of soil Suitable for construction
Productivity Organic matter
Tidal flat
Soil salinity
Soil salinity
Soil salinity
IDLE LAND
Productivity Organic matter
EUTROPHICATION
7 years
4 years
26 years
Halophytes→Agriculture
Farming
Halophytes→Aquaculture
Crop land
Tidal flat
Aquaculture
Salt discharge
Crop land
Productivity Organic matter
Farming
Tidal flat
IDLE LAND 7 years
4 years
Halophytes→Agriculture
Construction
Crop land
Construction
Urban development
Strategies of reorganizing the reclamation process for area with 3 different suitability Based on previous study, 3 new landuse solutions are proposed: 1. Not suitable for both agriculture and urban development (return farmland and restore salt marsh) , 2. Suitable for agriculture(aquaculture between terraced field for salt discharge). 3. Suitable for urban developme (buffer for canal and restore wetland). The aim is for balancing the time, ecological value and economical profit in the process of developing reclamation area.
Managed relignment+ Siltation Promotion
Not suitable for both agriculture / urban development
Salt elimination+ Aquaculture in terraced field
Suitable area for agriculture / aquaculture
Restore wetland+ More room for the canal
Suitable area for urban development
04.Green Link
Planning of Ecoduct and Ecological corridor SITE: Gothenburg, Sweden ACADEMIC: Year1,Semester1 (Msc.) Tutor: Meta Berghauser Pont BRIEF In this project I researched the social-ecological solutions for connecting important biotopes which is cut through by highway-159 in the south part of Gothenburg. In the project I combine the design of ecological corridors, ecoduct with social benefits for people, like public open space, cycling route and urban permaculture space. Which provide different types of landscape for surrounding residents.
05.
06. Run with water
Remediation of the floodplain + sports park, Ji An
SITE: Ji An, China TYPE OF PROJECT: Independent project SUPERVISOR: Jianjun Huang BRIEF This sports park is located in a floodplain near the Gan river in Ji-An city and every summer, part of the city would be Flooded due to lack of riverspace for holding the peakwater and lack of maintenance for the dike. Meanwhile, Gan-river is flooded due to surface runoff from nearby farmland. In this project, a sports park is designed based on the planning of a functional floodplain, where room for flood is provided and surface runoff can be purified.
RUN WITH WATER Floodplain+Sports park
Site
JI'AN CITY, Jiang Xi
Flood/pollution of surface runoff
Erosion and pollution of muddy flat
Navigation construction
Ecologial damagement
Flood analysis and strategy for different water level
Integrated water strategies
Planning of plants Water level
River dike
Water level
Surface runoff purification
3 levels of green trail in the park level 3 Walking
Water level
Section of trails
Restoration of the floodplain grassland
Plan of green trails
Possible activities in different sites
level 3 Walking
level 2 Walking+Running
Secondary forest + Grassland along Gan River
Wood trail in the secondary forest
Runing/Bicycle trail along the dike
Beach&playground along the floodplain