Heal the Lost Island P O M O N A I S L A N D N AT U R A L R E S T O R AT I O N S C H E M E t Manchester, UK
Wenli Yu The University of Sheffield 1
SITE INTRODUCTION Green Space in Manchester
Location: Juction of Manchester and Salford Area: 12000m2
Salford
Manchester is the second-most populous city in the UK. With the Industrial Revolution starting in the 19th century, Manchester began to expand rapidly and became the world's first industrialised city. In contrast to London's large urban parks, Manchester's central area has very limited public green space. Since more people work and live in the city centre, the demand for public green space is increasing. Green infrastructure in Manchester city centre takes up only 14%, and most of them are historic (Countryscape 2015). The effects of climate change, such as the heat island effect, will also be exacerbated by the lack of adequate green infrastructure. Pomona Island is a brownfield located on the border of Manchester city centre. It was once part of the Manchester docklands and became a recreational place after being landfilled in the 1970s. As a rare large island along canals and rivers, Pomona Island plays an important role in alleviating floods and heat island as well as preserving biodiversity.
“Manchester’s green spaces and its public spaces have a fraught history and haven’t always been successful. They’re few in number, they haven’t always felt safe, they haven’t always been attractive, and yet they are essential to an urban environment. Manchester has very fine public squares, but the potential to do more is there. The city lacks actual green space.”
Manchester Trafford
—— David Thame (Property Expert)
St. Georges Park -Grassland dominated
North Entrance Path Under Cornbrook
In 2015, a regeneration masterplan was approved including developing over 2,500 -home on Pomona Island. The 22-acre site bought by Peel L&P has been renamed Manchester Waters and was comprised of twelve development plots (Whelan 2020).
Cornbrook Entrance Pomona Island - Non-grassland dominated
There is no doubt that the construction will lead to the loss of most of the wildlife. The project will propose a practical, long-term development plan for Pomona Island. The project will improve landscape ecological benefits and be a more inclusive human-nature interaction space. Hopefully, in the future, when there is an opportunity for Pomona Island to be revitalised, this scheme will provide a good idea.
Ordsall Park -Grassland dominated Ducks
Moorland The main differences between Pomona Island and the surrounding parks is the non-grassland-dominated space, large areas of herbs and shrubs shape unique structural diversity that can support more biodiveristy.
Aerial Photo from Google Map, 2019
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WIDER CONTEXT Pomona Island is shaped by River Irwell and Manchester Ship Canal. It is in the middle area of Manchester City Centre(2.5km), MediaCity(2km), Trafford Park and College District, and also the connection point between the city centre and the Salford Quays.
Manchester Cathedral
City Council
Industry Museum Salford Quays
MANCHESTER
Green infrastructure in Manchester city centre takes up only 14%. Canals and rivers networks are crucial to reduce urban heat island.(Countryscape 2015). Pomona Island is one of the few large green spaces along the river. The networks can link the city centre to the communities through green corridors and provide habitat for wildlife.
Piccadilly Park
SALFORD
Urban Heritage Park Manchester University
M
K 2.5
MediaCity UK
Ordsall Park Hulme Park
M
2.5 K
2KM
Manchester Metropolitan University
Old Trafford
The Vimto Park
St. Georges Park Green Infrastructure
TRAFFORD
Hullard Park
Nansen Park Symour Park
Main Park Other Green Space Green Corridor
FLORA AND FAUNA Transportation system around the Pomona Island — railway, tram lines, bus lines and walkway are developed. Pomona Island is 1.3km long, two tram stations have been set up here- Pomona Station and Cornbrook Station. Even for tourists, they can switch to TRAM after arriving at any train railway station. It is easy to arrive the Pomona Island boundary by public transport.
Pomona Island is critical to biodiversity, however, due to many plants were removed, the number of communities has been greatly reduced.
Manchester Victoria Station
About 125 wildlife species and 150 plant species have been recorded here by 2015. Species such as Lapwing, Skylark and Reed Bunting are in decline across the whole country. For migratory species. e.g. Whinchat, Pomona Island is a great resting place on the migrant trip. For plants and Birch, Reed and fruit trees, there are also many flower species, e.g. Northern Marsh (Dactylorhiza purpurella).
R= 2KM
Manchester Piccadilly Station
Cornbrook Station
Manchester Oxford Road Station Connectivity
Pomona Station
Railway Tram Line R= 1KM
Bus Line Railway Station Tram Station Bus Stop
Birds Species and Habitat Specie Name
UK Conservation Status
Habitat
Food
Lapwing
Red
Invertebrates/ Grains
Skylark
Red
Linnet
Red
Reed Bunting
Amber
Whinchat
Red
House Sparrows
Red
Kingfisher
Amber
Starling
Red
Song Thrush
Red
Grassland/ Farmland/ Moorland/ Fresh Water/ Wetland/ Grassland/ Farmland/ Moorland/ Wetland/ Grassland/ Farmland/ Moorland/ Garden/ Wetland/ Farmland/ Wetland Grassland/ Farmland/ Moorland/ Wetland/ Farmland/ Woodland/ Garden Grassland/ Farmland/ Moorland/ Woodland/ Wetland/ Garden Grassland/ Farmland Woodland/ Wetland Grassland/ Farmland/ Moorland/ Woodland/ Garden
Invertebrates/ Seeds/ Grains Insects/ Seeds Invertebrates/ Seeds Insects/ Seeds/ Berries Invertebrates/ Seeds/ Fruits Fish/ Aquatics insects/ Shrimps Invertebrates/ Fruits Invertebrates/ Fruits and berries
Red is the highest conservation priority. Amber is the next most critical group. Species on the green list are the least critical group.
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SOCIETY Residential / Commercial Residential
55% Hope community to repond to climate change
Office/ Commercial Industy
98% Employed 80% Healthy 30~33 Average Age
SWOT ANALYSIS Close to Trafford, Salford and Manchester with a beautiful skyline. • Connect with the blue infrastructure. • Over 150 existing species, including endangered species. • Developed transportation network create high accessibility. • Rich and long-term history and cultural heritage. • Rich sunshine makes life alive better.
S
Tramlines make the island isolated and entrances are unnoticed. • Materials left over from the industrial age have been haphazard. • Waste from industry and polluted soil. • The lack of road connection from the outside to the riverbank leads to an uncomfortable experience. • Lack of facilities and plants management and maintenance, lead to low landscape attraction. • Low community participation. • Partially unsafe dark spaces.
• • •
O
+
PUBLIC COMMENTS
•
W
•
£25k~30k Family Annual Income
2/3 Visit natural environment more during lockdown
POPULATION DATA
•
High biodiversity protection and education value. High value on adapting to climate change. Large acreage provides sufficient space for various activities and makes it potential to be a landmark. Policy support on ecology conservation.
40% Living Alone
99% Think nature is necessary to both environment and mental health
(Data from Digimap, OS Map, Census)
• • •
1/3 Mental Issue
•
The impact of polluted soil and water on living creatures. The embankment is non-ecological, reducing landscape resilience. New estate development ignored ecology and wildlife, destroyed the connectivity of the habitat patches. Climate change.
Conclusion People living around Pomona Island are mainly young office workers, and a large proportion of people live alone. Although they have a pretty good health state, nearly a third of them suffer from psychological problems, such as stress and loneliness. Especially during the epidemic, lockdown had prevented outdoor exercise. Opinion surveys show that residents express positive views about the role of the natural environment. Therefore, based on the social status, national policy and the natural condition of the site, the design theme is proposed with both natural restoration and human well-being support.
T
4
POLICY
DESIGN STRATEGY
British Conservation Alliance Policy Response to England Tree Strategy (British Conservation Alliance 2020)
Human Wellbeing
The England Tree Strategy (2020) aims to increase tree planting across the UK to 30,000 hectares per year by 2025, and increase woodland coverage from 10% to 12% by 2060". The Nature Recovery Network aims to reshape 500,000 hectares of habitat to connect land and marine wild ecosystems. In terms of biodiversity, forest density and ecological resilience, a natural oriented woodland restoration process are more recommended than artificial planting.
Nature Restoration
in the England Tree Strategy, there are no wildfire prevention measures, so the government should evaluate and manage the potential fire risk, e.g. making use of more native tree species.
Vision Manchester Green and Blue Infrastructure Strategy 2015-2025 (Manchester City Council 2015) The main aim of the strategy is that Green and Blue Infrastructure with quality will be an integral part of the city and all citizens will be able to fully enjoy the use of space by 2025. The main objectives include:
By making full use of the natural resources with extra artificial modification, Pomona Island will eventually become an environmentally friendly, harmonious and healing paradise that supports wildlife living and human recreation.
1. Improve the quality and function of the existing Green and Blue Infrastructure. 2. Make Green and Blue Infrastructure a key factor in urban development. 3. Improve the connectivity of the city Green and Blue Infrastructure network. 4. Enhance public understanding of Green and Blue Infrastructure.
Aims 1. Encourage spontaneous vegetation to develop different woodland spaces combined with new planting. 2. Increase the diversity of plant communities and provide an attractive spatial experience for citizens. 3. Design various environment that suitable for different animals to promote biodiversity.
Environment Plan for Greater Manchester 2019-2024 (Greater Manchester 2019) The plan aims to transform Greater Manchester into a clean, resilient and low-carbon urban environment by building smart, sustainable infrastructure. Main relevant objectives include: 1. Accelerate the process of achieving carbon neutrality. 2. Improve air quality to meet the WHO standards as soon as possible.
Vegetation Strategy Maximize and encourage spontaneous vegetation, while integrating new planting to develop new environments and enhance the attraction of existing vegetation landscapes.
4. Protect, maintain and improve the natural environment for the benefit of the public.
Activity Strategy
5. Enhance urban self-resilience to climate change.
Rewilding and Ecosystem Service (Houses of Parliament 2016) Natural Capital is the part of the natural environment that benefits human, such as clean air and water. But the Natural Capital in Britain is in decline, so rewilding will be a crucial way to replenish it. Rewilding can help restore damaged land and recover biological communities. However, sometimes, the factors required for rewilding may conflict with local policies, such as mammal stocking. Therefore, rewilding measures need to be adjusted according to the actual practice.
Develop physical activities based on sports games and sensory experience based on vegetation spaces, colours, and flavours to provide residents with exercise opportunities and natural psychotherapy.
Spatial Strategy Based on the existing spaces, design and keep the difference of spatial openness at the horizontal level, and develop and manage the vertical structure diversity at a vertical level.
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L A N D S C A P E D E S I G N S TA G E a
North- east Entrance
A recommended one-way tour route
Spontaneous birch woodland
Fruit Trees
AA. Ball game court
GG. Pond
l we
H Meadow edge H.
Ir
r ive
R
I
FF. Canal walkway
Planted Oak Woodland
Oak street tree
Pond
Planted Oak Woodland
I Apple trees H.
Woodland edge
Perennial Meadow
H
BB. Birch woodland
Oak woodland
G
Cherry tree
Wetland Apple tree
Cafe House Canal Walkway CC. Grassland
EE. Oak street
Leisure Plaza
Cornbrook Entrance
Wetland Perennial meadow
E D Cherry Array
DD. Cherry trees
el
Irw
r e v
Ri
Open Grassland
Rowing House
Ball Game Courts
A
1:2000 MASTERPLAN
Children Playground
C Football Playgrouand
South-west Entrance
Spontaneous Birch Woodland
ip h S r te s e h c n a M
l a an C
B
Tram Line Viaduct
Urban Major Road
F
DESIGN BRIEF The low-maintenance spontaneous vegetation intervention and the design of new woodland are the two key aspects of the project. In general, spontaneous woody and shrubs have better ecological services and lower maintenance costs than anthropogenic woodland (Robinson and Lundholm 2012). Birch is an early succession species that can seed by wind (Rebele and Lehmann 2016), since there are many birch trees on the site, so the design encourages the spontaneous growth of birch woodland. However, oak is a late succession species whose seeds are heavy, and It usually takes decades to form spontaneous oak woodland. Since not many oak trees on the site, therefore, oak woodland is established by anthropogenic planting in the project. Besides, the perennial meadow design is mainly based on species communities adjustments, cooperating with the management plan. At the same time, many paths are cleared in woodland as shrub-dominated edges which are going to be an area with extremely high biodiversity value (Wiström and Nielsen 2014).
The activity organisation is based on the vegetation spaces. In addition to providing physical sports facilities, it is also crucial to provide enough opportunities for interaction between humans and nature. Colourful plants are believed to be good for cultivating people's positive emotions, green vegetation is considered the same way outside the flowering (Hoyle et al. 2017). The open, semi-open and closed horizontal spaces have different plant communities and palette while supporting animals with different living habits. When people walk through the site, they can feel the changes in light and shadow and appreciate the plant landscape of different colours and smells. Ten years later, when the mature woodland is formed, the higher vertical spaces that are not disturbed by the human can support more flying animals to multiply. The project is like a natural healing paradise to support both biodiversity and the people's physical and mental health, combining new landscapes creation and spontaneous landscapes development. When working with a satisfactory management plan, Pomona Island is expected to become a representative of the integration of society and ecology in the city. 6
DESIGN PROGRAMMING LANDSCAPE TYPOLOGY
CIRCULATION
Moorland
Wetland
Exsiting concrete road
Main road
Shrubs/Herbs mixture
Birch woodland
Expanded waterside walkway
Minor walkway
Trees/Shrubs mixture
Oak woodland
Grassland
Fruit trees
Concrete ground
Perennial meadow
Birch tree
Oak tree
⑤ Finally, create woodland
edges in birch and oak woodland.
Visual channal link to urban transport
Woodland edge is key to biodiversity and spatial experience
Modify and narrow the main road.
Featured riverside landscape
Connect North-east to South-west.
① Add new connection and
modify exsiting road.
① The site is half- shrubs
④ Plus-in all circulation, then form all landscape typologies and spaces.
and Herbs, half- moorland, with some trees along the canal as well as two areas of concrete ground.
Path to connect waterside walkway and main road Pond Three new areas requires earthworks.
Transfer concrete to grassland
Birch spontaneous growth
Transfer vegetation to open plaza
Enlarge open space
③ Plus-in the main
New oak woodland
landscape typology zones.
circulation as frame, then form the real landscape typology zones.
Meadow
Fruit tree
Open grassland
Expand edge Real planted oak woodland area
Wetland Spontaneous birch woodland area Sport space with Tree/ shurb
② Design minor walkway
through the whole site.
Sport courts
② Give a proposed
Walkway through woodland
Riverbank naturalistic planting Open Plaza
Real spontaneous birch woodland area ③ Final circulation network
Sport space with Tree/ shurb
provide various tour routes.
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SECTION AA' 1:150 Section Line Perspective ①
A
A'
In the bird breeding conservation in birch woodland, bird boxes will be set up on trees. Visitors are allowed to walk only along the wooden walkway outside the breeding season. Several bird viewing houses give people a higher place to interact with birds. During the breeding season, activities are not allowed in the conservation area to avoid disturbing.
Bird Viewing House in Birch Woodland
Open Grassland
Canal
PERSPECTIVE- ① Birch Woodland Edge
The maintained woodland edges in spontaneous birch woodland provide a path for visitors and support more biodiversity. Species that are rare in woodland will quickly be seeded here, such as Violets and Primroses. And also feed the blue butterflies, house sparrows and other animals. 8
SECTION BB' 1:150 Section Line Perspective ②
B B'
The Irwell River is an excellent spot for rowing, therefore a rowing service house will be built on the riverbank. The wide grassland provides visitors with great views and space for picnics and other activities.
Birch Woodland Background + Grassland
Rowing House
Platform + River
PERSPECTIVE- ② Leisure Plaza
This is an open plaza on the riverside, where visitors can interact with the aquatic birds gathering around the bank and sit in a flowered pergola surrounded by Wisteria and Meadow Sage with a cup of coffee. The curved terrace provides space for watching performances or teaching activities. 9
SECTION CC' 1:400 Section Line Perspective
The newly planted oak woodland grows slowly in the early stage. But mature oak woodland tends to be denser than birch woodland. A portion of the clearing fields was leftover in both oak and birch woodland which will form semi-open grassland later, not only to provide different woodland spaces but also to provide more sunlight for ground-level plants and animals. The Sustainable Urban Drainage system (SuDS) combined with planting, mulch, soil and drainage pipes have a good buffer effect on rainwater.
③
C C'
Semi-open Soace in Oak Woodland
New Planted Oak Woodland
Main Road + SuDS
Semi-open Grassland in Birch Woodland
Bird Breeding Conservation
PERSPECTIVE- ③ Wetland/ Oak Woodland
Enter from the north-east entrance, different landscape are on two sides of the road. The left side is a new wetland where aquatic plants and animals are growing here. The right side is perennial meadow shaped by vegetation community adjustment leads visitors to walk into the dense oak woodland. 10
KEY SPECIES SELECTION
(The selection reason for specific specie please see "Rational" in the Management Tables in the next page.)
Perennail Meadow
Woodland Edge Ulex europaeus Common gorse
(Photo by Richard Steel)
Jasminum nudiflorum Winter jasmine
(Photo by Gardener's World)
Lythrum salicaria Purple loosestrife
(Photo by Gardener's World)
Salvia pratensis Meadow sage
Prunus spinosa Blackthorn
Solidago canadensis Canada goldenrod
Ilex Holly
(Photo by Ronfh Peggy)
(Photo by Gardener's World)
Brassica napus Rapeseed
Salvia nemorosa Woodland sage
(Photo by Gardener's World)
(Photo by Tilo Hauke)
Shrub
Annual
Perennial
Wetland Aster amellus Italian aster
(Photo by RHS)
(Photo by Gardener's World)
Arbor
(Photo by RHS)
Scabiosa ochroleuca Pincushion flower
Phragmites australis Common reed
(Photo by Graham Calow)
(Photo by Hayefield)
(Photo by RHS)
(Photo by Gardener's World)
Typha minima Dwarf bulrush
Betula pendula Silver birch
(Photo by Gardener's World)
(Photo by Phil Formby)
Dactylorhiza purpurella Northern Marsh-orchid
Narcissus Daffodil
Iris sibirica Siberian Iris
Tree (woodland/ fruit tree)
Arbutus unedo Strawberry tree
(Photo by First Nature)
(Photo by RHS)
Utica dioica Nettle
Helianthus Sunflowers
Rubus fruticosus Bramble
(Photo by Garden Organic)
(Photo by Gardener's World)
(Photo by Woodland Trust)
Quercus robur English Oak
(Photo by Oliver Smart)
Malus domestica Apple tree
(Photo by Auntie Dogma
Prunus 'kanzan' Cherry 'Kanzan'
(Photo by Gardenia)
Flower Colour/Time of Some Species Principles Dec.
1. Priority should be given to native species, except overcompetitive species that may cause colonisation; Appropriate introduce alien species, except invasive species.
Nov. Oct. Sep. Aug.
2. Select colourful and different flower-shaped species, especially those with larger flowers and produce pollen, nectar, seeds and berries.
Jul. Jun. May.
3. Select species that support birds nesting.
Apr.
4. Mainly select perennial species and add later flowering species.
Mar. Feb. Jan. Ulex europaeus
Lythrum salicaria
Brassica napus
Salvia nemorosa
Jasminum nudiflorum
Iris sibirica
Salvia pratensis
Helianthus
Solidago canadensis
Aster amellus
Scabiosa ochroleuca
Narcissus
Dactylorhiza purpurella
Malus domestica
Prunus 'kanzan'
5. Select species that will be easier to adapt to future climate change.
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H A B I TAT M A N A G E M E N T P L A N a 2021
VEGETATION 1. To shape a stable mixture of mature plants at different stages gradually, and to maintain the good healthy condition of vegetation.
VISION To maintain habitat diversity by establishing a long-term management plan for vegetation communities as well as keeping spatial diversity. Ultimately to achieve mature and stable habitats for wildlife, with exemplary ornamental value.
AIMS
WILDLIFE 2. To keep the long-term ecological balance of the desirable living environment to support biodiversity.
2023
Most of the spaces will open, except the newly planted Oak woodland and partially spontaneous Birch woodland. The support stuff of Oak trees can be removed, but weed control and irrigation are still needed regularly.
3. To maintain the diversity of horizontal landscape, increase the attraction of vegetation.
2040
TIMELINE
2025
All spaces will open, and the bird boxes will be set up in Birch woodland as well as inaccessible conservation. The first animal statistics will be conducted. Species adjustment in the wetland will start.
2030
ACTIVITY
Clear the site, new roads and infrastructure will start to be built. And new vegetation will start to be planted. The ball game courts will open at the end of the year.
A stable birch woodland system will be gradually formed (Řehounková et al. 2018), and the focus of management will be to maintain the spatial structure and keep the eco-balance condition. The second animal statistics will be conducted.
2035
Oak trees will begin to form mature woodland and Oak seedlings will start to colonize unmanaged Birch woodland. Proper actions should be taken to keep Birch woodland. The third animal statistics will be conducted.
Herbs will begin to die and new planting work will start. Birch canopy will begin to block the sun, and thinning can begin. Oak seeds will start to invade birch woodland (Řehounková et al. 2018). Replace reeds to reduce the reedbed if necessary.
PARTNERSHIP Management Contractors
Roles of Stakeholders: Funds sources for project establishment: Heritage Fund (common fund), Carbon Landscape (wetland fund)
Landscape Managers
Tripartite Collaboration
Facility
Voluntary management group for clearing, planting and guidance: University students, Friends of the Earth Manchester, RHS
Animal Paid Workers
Paid Workers
Social
Woodland planting and management: Woodland Trust (tree), RHS (shurb and perennial)
Nature Volunteers
Partnership
Volunteers Activity
Stakeholders Funds
Paid workers for facilities maintenance: Salford City Council, Mancester City Council
Vegetation
Perennial vegetation planting and management: RHS (perennial meadow), Carbon Landscape (wetland) Wildlife mornitor and evaluation: The Wildlife Trust (invertebrates), RSPB (bird only) Tripartite collaboration organisation and support: Nature Greate Manchester, Landscape Managers Academic support and education acticities: University of Manchester, University of Salford
Academic Support
RHS: Royal Horticulture Society
RSPB: Royal Society for the Protection of Bird
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NATURAL SUCCESSION
Section Line
SECTION -1 1:250
1
Spontaneous Birch Woodland
Grassland
Oak Street Trees Grassland
YEAR 1
MANAGEMENT ACTION
Link to Species Selection Principle: 1
Action
Rationale
Monitor:
An irregular mowing way can maintain the grass in different height to support more inveterbrates. Also mowing can remove shrub and birch tree seeldings to keep the grassland be open and neat for human.
Monitor the number of bird species in Red List Lapwing and Skylark prefer open space with as an criteriar to evaluate the management sunshine which give them more insect food plan, e.g. Lapwing, and Skylark. (Queen Elizabeth Olympic Park 2018). Hygiene: For the tidy environment. Regular garbage cleaning. Transplant oak street trees with support and irrigate regulary.
Set up bird boxes.
Remove tree support.
YEAR 15 Open grassland makes Song thrush and white wood butterfly like hunting easier for woodland edges close Skylark and lapwing. to grassland.
Song thrush
House sparrow likes woodland shrubs.
House sparrow
Swift likes nesting rely on man-made structure.
Swift
Skylark Lawping
Done by who
Once a year
Salford City Council
Year 5-10
Royal Society for the Protection of Birds
Friends of the Earth Once a week Manchester/ University Students
Rationale
Time
To ensure new trees grows healthily enough to be competitive. The birch seeds can be taken by wind and the birch grows faster than the oak.
Control weeds and competitive species around the new plants. And remove invasive birch seedlings. Oak Processionary can damage oak tress by eating leaves and can cause skin and respiratory Check the branches and leaves of plants diseases. regularly to see if there are bark tearing, diseases and insect pests in early stage, e.g. To ensure new trees become strong enough for oak trees, pay attention to check the Oak to support itself, and protect new trees from Processionary. herbicides.
Year 1-5
Check the tree shelter and support stuff of new trees, replace any damaged items.
Year 1-3
New Planted Oak Woodland Protection:
First bird statistics.
Time
Vision: To develop closed woodlands gradually with age diversity, structure diversity and maximizing biodiversity benefits. Action
Mowing the grassland in an irregular way.
5
Closed Woodland (Section 1/2/3):
YEAR 5
Remove tree support.
4
Vision: To maintain the grassland an open and tidy space with sunlight for human and animals activities.
Mowing the grassland in an irregular way every year.
Existing birch trees will seeded itself.
3
Open Grassland (Section 1):
Mowing:
Plant new cherry trees with support and irrigate regularly.
2
The poor soil and soil compaction may can't support new tree (Del Tredici 2014), so it is necessary to provide nutrients for growth.
Year 1-5
Done by who
Woodland Trust / Manchester City Council
Irrigate them in dry season and apply nitrogen Year 1-3 fertilizer. Check the soil further if the plant are not growing well. Spontaneous Birch Woodland: Keep certain area of open spaces on ground level to let sunlight in (Forestry Commission Thinning can be done every 15-20 years if the 2015). Year 15 canopy are too dense. Woodland Trust The oak tree, as a typical late species, will Remove Oak seedlings. gradually replaces the birch in the later stages of Year 10-15 natural succession. Deadwood: The deadwood can shape the microclimate and shelter for invertebrates and birds. It Friends of the Earth Make the deadwood that does not affect the provide can nurture fungi and other microorganisms Year 10-15 Manchester/ University health of the environment die out naturally, also provide food for insects (Forestry Commission Students or pile them up to form a shelter after cutting to 2015). in winter.
Monitor: White wood
Replace new bird boxes.
Clear invasive oak seedlings.
Thinning some birch trees.
House Sparrow and Starling prefer Monitor the number of bird species in Red List Swift, woodland with nesting places. as an criteriar to evaluate the management plan, e.g. Swift, House Sparrow and Starling. Shelter: Provide nests for bats, starlings. Swift boxes can Set up bird and bat boxes at a height above be hung on structures. The height is to make sure of flying. 4m on the mature trees.
Year 5-10
Royal Society for the Protection of Birds
Year 3-5
Volunteers (e.g. Friends of Pomona) 13
NATURAL SUCCESSION
Section Line
SECTION -2 1:250
2
Spontaneous Birch Woodland
Spontaneous Birch Woodland
Woodland Edge
MANAGEMENT ACTION
2
3
4
5
Woodland Edge (Section 2): Vision: To keep the woodland edge as open shrub-dominated spaces with sufficient sun and nesting opportunities to support biodiversity. Action
YEAR 1
Link to Species Selection Principle: 1
Rationale
Time
Done by who
Vegetation structure control:
Build raised walkway through the woodland.
Create new woodland edges and plant new shrubs and herbs.
Existing birch trees will seeded itself.
YEAR 5
The open woodland edge can provide more sunlight and nesting opportunities (Forestry Check and clear tree seedlings, keep the Commission 2015). Sunlight gives more plants Year 1-3 shrub dominated structure of woodland edge. a place to grow, e.g. Jasminum nudiflorum, thus providing seeds for insects like butterflies. Year 5/10/15 Prune the shrub branches or remove some Shrubs help more birds and insects build their plants If they are too dense and block the nests, e.g. House sparrow. Year 5/10/15 path. The prune is to maintained a tidy and safe path Every 3 years Coppcing shrubs to less than 500mm and for pedestrians. The coppicing is to promote herbs to less than 100mm. more sunlight to arrive at the ground so that biodiversity can be kept here. Control or remove excessive invasion of marginal shrubs, e.g. Achillea grandifoliabyon Achillea grandifoliabyon is competitive than can be used to inhibite Rubus fruticosus. Rubus fruticosa. Vegetation species adjustment: Reynoutria japonica is non-tive and will quickly crowd out native vegetation. Clear invasive weed species, e.g. Reynoutria Year 1 japonica. Sun-loving species can produce more food for birds and insects , e.g. the sunflower seed Year 1-2 Add sun-loving species to the edge of the is good food for Linnet and Skylark, and the woodland. e.g. Prunus spinosa, Helianthus. Whinchat like the berries of Prunus spinosa. Year 1-2 Increase thorn scrub-shrub, e.g. Ulex europaeus, Prunus spinosa. Waste Material: Pile up the waste materials in winter as shelters, e.g. reeds
First bird statistics.
Existing birch trees will seeded itself.
Remove invasive species.
Gatekeeper butterfly likes eating Rubus fruticosus.
Starling
Song thrush and Whinchat likes Linnet like nesting in eating berries. gound level shrubs.
Lapwing
Whinchat
Once a year
Royal Horticultural Society/ University Students
Friends of the Earth Manchester
Set up bird boxes.
YEAR 15 Starling also likes living in woodland.
Many birds like nesting in the leaves gaps of thornyscrubs , e.g., Linnet. To help invertebrates survive in winter and ecourage fishes to produce larvae.
Manchester City Council / Woodland Trust
Lapwing and skylark don't want to be disturbed in breeding season.
Skylark
Linnet Gatekeeper
Song thrush
Thinning some birch trees.
Replace broken bird boxes.
Replace the dead herbs and maintain the path edge.
Inaccessiable conservation area during bird breeding. 14
NATURAL SUCCESSION
SECTION -3 1:250 Perennial Meadow
Section Line
3
Planted Oak Woodland
Street
MANAGEMENT ACTION
3
4
5
Perennial Meadow (Section 3): Action Vegetation Species Adjustment: Clear invasive weed species and colonised species, e.g. Reynoutria japonica, and Rhododendron ponticum. Increase colourful and flower-early species with big flower head, e.g. Iris sibirica, Narcissus. Increase seed production species, e.g. Brassica napus, Helianthus.
Plant oak trees with support and irrigate regulary.
2
Vision: To make the meadow become the most colourful open field in the site with food sources for animals.
Wetland
YEAR 1
Clear invasive plants and add new perennial species.
Link to Species Selection Principle: 1
YEAR 5
Time
Reynoutria japonica is non-tive and will quickly crowd out native vegetation (Forestry Commission 2015). Rhododendron ponticum can produce countless seeds and then quickly colonise the field.
Year 1
Species with big flowers can attract pollinators. The flower-early species can extend the ornamental period (Kühn 2006), e.g. Narcissus flower from March to May.
Year 1-2
Brassica napus can provide oil-rich seeds which is Linnet favourite food, Helianthus seed are liked by Skylark and Linnet.
Year 1-2
Steppe species are better adapted to poor and dry conditions (Köppler et al. 2014). Vegetation Structure Control: It allow sunlight arrive the ground and support invertebrates andbird nesting, e.g. Song Thrush Coppicing meadows once a year and keep the can nesting and hunting here. structure at different heights in spring. Monitor: Bumblebees are good pollinators. Many species Monitoring the number of animals are critical are on priority conservation lists. to biodiversity, e.g. bumblebees.
Year 15
Replace large areas of dead plants every 1015 years and introduce new species, e.g. Salvia nemorosa and Scabiosa ochroleuca.
Create wetland and plant reed.
Rationale
Done by who
Royal Horticultural Society / University Students
Once a year
Salford/ Manchester City Council
Year 5-10
Royal Society for the Protection of Birds
Wetland and Pond (Section 3): Vision: To maintain a good environment quality to support the diversity of aquatic animal and birds that feed on fish. Action Vegetation Species Adjustment: Cut meadow once a year.
Clear invasive birch seedlings.
Mature oak trees will seeded itself.
Remove tree support.
Add new species, e.g. Urtica.
First bird statistics and water monitor.
YEAR 15 Bat likes living in the Kingfisher likes boxes which are easy standing on a shurb perch when hunting. to be found.
Linnet likes oil-rich seeds particularly. Bumblebee and Flower beetle are good pollinators. Linnet
Bat
Bumblebee
Kingfisher
Reed is the most common habitat for reed bunting.
Reed bunting
Flower beetle
Replace the dead herbs.
Replace broken bird boxes.
Cut invasive birch seedlings.
(Animal Photo Sources: Skylark, Kingfisher, Lapwing, Linnet, Song thrush from: https://www.wildlifetrusts.org/ Bumblebee, Gatekeeper, Wood white from: https://butterfly-conservation.org/
Prune the enormous Replace all reed if there is thick deedbed. willow branches. House sparrow, Starling, Whinchat, Reed bunting from: https://ebird.org/home Flower beetle from: https://www.britannica.com)
Remove the competitive species, e.g. Himalayan balsam. Cut Typha if they invade in large numbers in the future.
Rationale Himalayan balsam and Typha can cause reeds to decline and then affecting the habitat of the reed bunting. The seeds of the Urtica species are food for many birds and invertebrates, and the stinging structure can protect the forager from outside attack.
Time Year 5-10 Year 5-10
When the plant communities stabilizes, Utica Year 3-5 dioica can be added appropriately. Reedbed managemengt: To ensure reedbed at different level to control the invasion of shrubs after the reedbed Cut certain area of reeds to maintain the exposure (Queen Elizabeth Olympic Park 2018). Once a year reeds at different heights and ages. The continuous accumulation of reedbed may Replace all the reeds if the reedbed is too lead to the overgrowth of reed and destroy the Year 15 high. ecological balance. Edge care: Edge shrubs and herbecaus can support more living insects as food for Reed Bunting. They Remove but preserve some shrubs and can also provide pershes for Kingfisher when Every 3 years herbecaous at the edge of the wetland. hunting. Manage the edge shade so that less than 1/3 of the plant exceed the bank, e.g. prune dense willow branches. Monitor:
Done by who
Avoid shade preventing sunlight from entering the water.
Year 10-15
Kingfishers prefer living in cleaning water Monitor water quality, or monitor the habitat, so it can be an key indicator for water number of indicator animal communitires, e.g. quailty (Queen Elizabeth Olympic Park 2018). kingfishers communities.
Year 5-10
Carbon Landscape
Carbon Landscape
Salford/ Manchester City Council
Royal Society for the Protection of Birds 15
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