University of Surrey & Surrey Nature Partnership...15:00 Break out group session 1 - brainstorm...
Transcript of University of Surrey & Surrey Nature Partnership...15:00 Break out group session 1 - brainstorm...
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Monday, 22 February 2016 1
University of Surrey & Surrey Nature Partnership
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Workshop structure
Monday, 22 February 2016 2
13:00 Lunch
14:00 Welcome: Jonathan Chenoweth & Sarah Jane Chimbwandira
14:05 Introducing Green Infrastructure: Jonathan Chenoweth
14:15 North Carolina experiences of GI: Bill Hunt (via Skype from NCSU)
14:45 Naturally richer: A natural capital investment strategy: Sarah Jane Chimbwandira
15:00 Break out group session 1 - brainstorm ideas for developing GI in Surrey
15:30 Break out group session 2 - brainstorm ideas for developing GI in Surrey
16:00 Tea /coffee break
16:15 Sharing of breakout groups’ GI development ideas and discussion on how to take
ideas forward
16:45 Wrap up
17:00 Finish
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Introducing green infrastructure
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Dr Jonathan Chenoweth
Centre for Environmental Strategy
University of Surrey
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Introduction
• Presentation structure:
• Definitions of green infrastructure
• Differences in UK and US approaches
• Aims and objectives of green infrastructure
• Qualitative benefits of green infrastructure
• Quantitative costs and benefits of green
infrastructure
• Types of green infrastructure
• Outline of the rest of the workshop
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Definitions of green infrastructure
• “all green and blue spaces in and around our towns and
cities” Royal Town Planning Institute, (2013, p1)
• Other definitions do not limit green infrastructure to just
urban areas – green infrastructure can be located
anywhere
• “the living network of green spaces, water and other
environmental features in both towns and the
countryside” UK Environment Agency et al (2013, p12)
•Green infrastructure as a term is applied both to green
spaces and to infrastructure, such as cycle routes, which
fulfil a sustainability function
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Definitions of green infrastructure
•Some definitions emphasise that green infrastructure is a
planned network, not just a collection of open spaces
• Green infrastructure refers to the combined structure,
position and connectivity of green spaces
• “a strategically planned network of high quality
natural and semi-natural areas” European Commission
(2013, p7)
• Not all green space is necessarily green
infrastructure – must be part of a planned network
•Ecosystem service delivery can be seen as key
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Green infrastructure and related terms
•Green infrastructure different to concepts like green
belts or amenity space
• The emphasis is on infrastructure – something
critical to the functioning of a city
• Amenity space as a concept sounds less critical
•Terminology differences between US and UK
• Focus of green infrastructure in the UK is more on
landscapes and increasing biodiversity in urban
areas
• Focus in US is more on low impact development
and surface water management
• These might be termed sustainable urban
drainage solutions in UKMonday, 22 February 2016 7
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Objectives of green infrastructure
• Improving human health and wellbeing
• Improving urban aesthetics
• Biodiversity conservation
• Water management
• Sustainable land management
• Climate change mitigation and adaption
• Job creation
• Urban regeneration
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Qualitative benefits of green infrastructure
•Benefits to humans: Quality of life and health
• Filtering of air and water pollution
• Reducing heat island effect
• Health benefits due to enhanced opportunities for
exercise, sport and recreation
•Benefits to ecosystems and landscapes
• Green corridors to improve the permeability of urban
areas to wildlife
• Increased habitat area and connectivity leadings to
increased biodiversity
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Qualitative benefits of green infrastructure
•Benefits to society and the economy
• Green infrastructure is often framed as a way of
reconciling economic growth and the needs of the
environment
• Temporary and permanent job creation
• Reduced storm water treatment costs
• Increased property values
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Quantitative costs of green infrastructure
•A survey of 94 green infrastructure projects across Europe
showed that:
• Most projects had a budget of between €0.5 and €5
million
• Five very large projects with budgets over €25 – one
with a budget of €177 million – the UK National Forest
project
• Costs per hectare for projects ranged from €250 to
€942,000 (Naumann et al, 2011)
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Quantitative benefits of green infrastructure
•A study of UK’s National Forest for the
1991-2100 period estimated costs of £188
million but benefits of £909 million, thus
providing net benefits of £721 million
•The Merseyside Objective 1 Programme to
create 8000 hectares of community
woodlands was estimated to be providing £2
million in net benefits per year, and had a net
present value of £71 million
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Types of green infrastructure
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• Green and blue roofs
• Swales, infiltration and filter drains and strips
• Wetlands and ponds
• Bio-retention areas and
rain gardens
• Detention and infiltration
basins
• Permeable surfaces
Source: http://www.surrey.ac.uk
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Workshop structure
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13:00 Lunch
14:00 Welcome: Jonathan Chenoweth & Sarah Jane Chimbwandira
14:05 Introducing Green Infrastructure: Jonathan Chenoweth
14:15 North Carolina experiences of GI: Bill Hunt (via Skype from NCSU)
14:45 Naturally richer: A natural capital investment strategy: Sarah Jane Chimbwandira
15:00 Break out group session 1 - brainstorm ideas for developing GI in Surrey
15:30 Break out group session 2 - brainstorm ideas for developing GI in Surrey
16:00 Tea /coffee break
16:15 Sharing of breakout groups’ GI development ideas and discussion on how to take
ideas forward
16:45 Wrap up
17:00 Finish
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Brainstorm themes
Theme 1:
- How can a natural capital / green infrastructure approach be used to promote
regeneration?
- How can you retrofit green infrastructure to ensure environmental and social
benefit?
Theme 2:
- How could green infrastructure (radically) reshape new urban development?
- How can green infrastructure ensure better new development?
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