Emily Manderson Lowres

8/3/2019 Emily Manderson Lowres

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State of the PrairieNovember 18, 2011

Designing Prairies in Urban Areas

Emily MandersonLBJWC Ecosystem Design Group


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Ecosystem Design GroupEcosystem ServicesConsulting Case Studies

Plant Research


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Reduce&Green&House&Gases&:&&Sequester&Carbon&:&Clean&Air&:&Clean&Water&:&Reduce&Soil&Erosion&:&Create&Pollinator&Habitat&:&Recycle&Waste&:&Support&Human&Well=Being&

Educate

ApplyInvestigate


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Ecosystem Services: services naturalsystems provide for free but are

necessary for sustaining life

In 1997 the economic value of theseservices was estimated $33Trillionannually roughly equivalent to entireGlobal GNP (Costanza et al. 1997)

Ecosystem Services


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Wall&Street&Journal&&June&15&2009&


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=140&

=120&

=100&

=80&

=60&

=40&

=20&

0&

20&

40&

Carb

ondensity(kgCm-2)

after Amthor et al 1998


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Its not only about

carbon

Air qualityWater qualityWater quantityHeat

Energy useQuality of life


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Installaon&to&Maintenance&

& invasive&species&& atypical&process&

Residents&as&police&

Extending&the&funcon&of&

the&prairie&

Dont&mow&our&prairie!&


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&&&2009&Michael&Van&Valkenburgh&Associates,&Inc.&


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GWBPC Design Team

Michael Van Valkenburgh, Inc. Landscape Architect Robert A.M. Stern LLP Architects URS Corporation Civil Engineers Jeffrey L Bruce Irrigation Consultant Olosson Associates Soils Scientist Sustainable Growth Texas Organic Soils Specialist Ecosystem Design Group Ecology Consultant


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GWBPC Project timeline

Schematic Design 30 March-1 May 2009 Design Development 1 May 09-1 Nov 2009 Construction Documentation 1 Nov 2009-15 Aug 2010 Bidding and Negotiation 15 Aug 2010- 1 Nov 2010 Construction Administration 1 Nov 2010- 1 Feb 2013


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Design Concept


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North (SMU) vsSouth (Crawford) of

Building

Users of the site andcenter circulation

Emblematic Prairie Habitat Types

Tall Grass Mid Grass Wildflower

Meadow Native turf grass

sun/shade Seeps Floodplain forest

2009&Michael&Van&Valkenburgh&Associates,&Inc.&


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Reference&sites&


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Mock Up

Plugs, seed, sod,topography, soil types,irrigation, establishment,

maintenance, aesthetics


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Research


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0

1

2

3

4

56

1 sp(nn)

1 sp (n) 2 spp(n)

4 spp(n)

Leaf density

Simmons, Bertlesen, Windhager & Zafian. (2011)


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0

100

200

300

400

500

600

1 sp (nn) 1 sp (n) 2 spp (n) 7 spp (n)

WeedDensity(m-2)

Simmons, Bertlesen, Windhager & Zafian. (2011)


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Blue gramaPoverty dropseed Buffalograss

Texas grama Hairy grama

Hairy

tridens

Hairy

grama

Curly mesquite


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Hilaria jamesiiHilaria belangeri

Curly mesquite species range


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11th&Avenue&Townhouses&North&County&Housing&Foundaon&Escondido,&CA&

Research

Simmons et al. 2008


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20

4060

80

100

120

140

160

180

200

0 4 8 12 16 20 24

Black

Green

Roof&temperature&in&the&summer&&


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0

12

3

4

5

6

7

0 20 40 60 80 100 120 140 160

Black

Green 1

Green 2

Water&runoff&for&2&rain&event&&


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0&

2000&

4000&

6000&

8000&

10000&

A& B& C& D&E& F&

Shrub&& &Grasses&&&

Forb&& &Succulent&& &

Proporonal&&

Growth&Index&(%)&


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Vancouver Convention Center. Daily Journal of Commerce


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surely it is not wrong to hope that modern man

modern, urban, mechanized manwill somehowrecapture that sense of balance between his life and hisenvironment - before it is too late.

Lady Bird Johnson

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Emily Manderson Lowres