PEWI A dynamic landuse and ecosystem service tradeoffs assessment tool Why PEWI How agriculture can produce outcomes that society desires How we can learn Complex socialecological relationships ID: 814583
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Slide1
People in Ecosystems/Watershed Integration (PEWI):
A dynamic land-use and ecosystem service tradeoffs assessment tool
Slide2Why PEWI?
How agriculture can produce outcomes that society desires
How we can learnComplex social-ecological relationshipsEcosystem service tradeoffsHow we can facilitate urban-rural dialogue
Slide3An analogy
The analogy of a sandbox is a great way to think about PEWIWhy a sandbox?
Slide4Friends and a sandbox
Slide5The right tools and a design
Slide6The finished product…until
Slide7Create something new
Slide8What if there were a virtual “sandbox” to explore humans, land use, and ecosystem service in a watershed?
Slide9PEWI is that sandbox
Fun, simple, and accurateExplore land uses and ecosystem services without technical expertise or the costs of experimenting in the real world
Slide10Introduce PEWI
Models how changes in land use and management result in tradeoffs in the levels of ecosystem services
outcomes in a fictional Iowa agricultural watershed
Slide11Introduce PEWI
Models how changes in land use and management result in tradeoffs in the levels of ecosystem services
outcomes in a fictional Iowa agricultural watershed4 concepts:Land use and managementWatershedTradeoffs
Ecosystem Services
Slide121.
Land uses and management
Slide132. What is a watershed?
When water hits land, runoff
drains
to a stream, lake, or larger waterway.A watershed is the area of land where all of the water that is under it or drains off of it goes into the same place.
Slide143. What are ecosystem services?
Ecosystem services are “the conditions and processes through which natural ecosystems, and the species that make them up, sustain and fulfil human
life” (Daily, 1997).Ecosystem services are “the benefits people obtain from ecosystems. These include provisioning services
such as food and water; regulating services such as flood and disease control; cultural services such as spiritual, recreational, and cultural benefits; and supporting services, such as nutrient cycling, that maintain the conditions for life on Earth” (UNEP, Millennium Assessment Reports).
Slide15Modified, with additions, from the Millennium Assessment
Slide164. Tradeoffs among
ecosystem services
Adapted from Foley et al. (2005).Photos from Iowa DNR (left), USDA NRCS (middle), and Sarah Hirsh (right)
Slide17www.nrem.iastate.edu/pewi
Slide18PEWI land uses
Slide19PEWI physical feature maps
Slide20Behind the scenes
7 modules in PE/WI 16 ES indicators
BiodiversityGame WildlifeCarbon SequestrationNitratePhosphorusErosion & SedimentationYield
Slide21PEWI results
Slide22PEWI results
Slide23User designs
Slide24Compare two designs
Slide25Check PEWI out onlinePEWI Companion Website
http://www.nrem.iastate.edu/pewiPEWI App
http://www.nrem.iastate.edu/pewi/appIowa State University Project LeadersProf. Lisa Schulte
Moore lschulte@iastate.eduProf. John Tyndall
jtyndall@iastate.eduCarrie Chennault carriemc@iastate.edu