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Landscape Ecology:BrownfieldRedevelopment

LN 307 Landscape Ecology

Fa Likitswat

Faculty of Architecture and Planning

Thammasat University

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Brownfield Redevelopment

Brownfield Sites

Greening Brownfields

Key Challenge in the processes

Remediation processes

The way forward case studies

Questions?

overview

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Minet before the restoration process, UK

BrownfieldsorGreenfields?

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Brownfields :- - is a property on which expansion, redevelopment, or reuse may be

complicated by the presence, or perceivedpresence, of contamination.

EPA, USA

- - is a loose term used to describe land whichhas already beendeveloped, as opposed to green field sites, whichhave not.

BBC, UK

- - unused and abandoned sites are

scars on the landscapeand often the legacy of our industrial past. They arethe result of heavy industrial activity that did not pay as much attentionto environmental concerns as we do today.

SGS

Brownfield sites

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- Unused housing and factories

- Abandoned Industrial sites

- Dumpsites and Landfills

- Land along railways, roads andexpressways

- Parking lots

- Abandon aquaculture sites

Brownfield SitesBrownfield sites

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++ Vacant/ Complicated

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Edward Burtynsky ManufacturedLandscapes

++ Landfills /

Dumpsites

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++ Unused Infrastructure

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++ Vacant lots

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++ AbandonedShrimp Farm

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Why does

it matter?

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What are the benefits

of brownfield redevelopment?Benefits to the community

Eliminating health and safety hazardsEliminating eyesores

Bringing newjobs into the communityBringing new investment into the community

Increasing the productivity of the land

Increasing property values and tax receiptsby local and state governments

Protecting ecosystem habitat..........................................................

What's else?

Greening Brownfields

Wh th k l

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Who are the key playersin brownfield cleanup and redevelopment? (USA)

A variety of private and public sector organizations may play a role in the course of cleaning up

and redeveloping brownfield sites. Not all of these organizations will be involved at every site.Key players include

State Environmental Agencies

State Econom ic Development and Planning Agencies

Comm erc ia l Lenders

Technical Cons ultants

Legal Coun sel

Ci t izens and Communi ty Groups

Local Government Agencies

United States Enviro nm ental Protect ion A gency (EPA)

Developers

Brown field Developers and Investor s

Real Estate Pro fessio nals

Local Comm uni ty Development Corporat ions (CDCs)

Federal Government Agencies

Challenges

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Urban agriculture

Has potential to improve the quality of life in urban areas by increasing foodsecurity, providing opportunities for community development, andimproving the aesthetics of the urban landscape.

Obstacles:

land availabilityrestricted budgets

soil contamination.

Challenges

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Soil Contamination

A major barrier to urbanagriculture initiatives, becausecontaminants are present inmost urban soils at levelshigher than are accepted for

agricultural use.These contaminants can betaken up by plants grown inthese soils, and can be harmfulto human health if the produceis consumed.

The barrier of landavailability could bepartially overcome ifbrownfields could beused as sites for

urban agriculture.

Challenges

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Remediation

Remediation involves the removal of contaminants.

Physical remediation ;

Excavation / Geotextiles / Soil washing / Soil vapour

Bioremediation remediation ;

Microbial remediation/ Phytoremediation/

Fungal remediation/ Compost remediation

Remediation Processes

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PhytoremediationThe process of using

plants to degradeorganiccontaminants or toextract toxic metalsfrom the soil andtransport them intothe above-groundshoots.

In the case of extraction,the contaminatedplants must later be

disposed of soil.

Remediation Processes

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Discussion

What's the difficulties in Southeast Asia?

How about Thailand?

The way forward

Th f d

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The way forward

t di

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Bang Yee Chan LiquorFactory

case studies

t di

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Vacant Rail-yard and Grain Elevators(Proposal)

case studies

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case studies

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Study on biodiversity in an

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Study on biodiversity in anabandoned shrimp farm

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References

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References

Brownfields and Land Revitalizationhttp://epa.gov/brownfields/

http://aecom.com/Where+We+Are/Asia/_news/AECOM+leads+the+way+in+brownfield+remediation+and+redevelopment+in+China+with+launch+of+new+publication

Red Mountain / Green Ribbon The Master Plan for Red MountainParkhttp://www.asla.org/2012awards/584.html

http://epa.gov/brownfields/http://epa.gov/brownfields/http://epa.gov/brownfields/http://epa.gov/brownfields/