The Upper San Pedro River Basin in southeastern Arizona is well known for its avian diversity; however, water use by Sierra Vista, Fort Huachuca, and agriculture in the basin threatens to lower its water table. This, in turn, could alter vegetation in the basin in a way that would negatively impact habitat currently supporting nesting of the endangered Southwestern Willow Flycatcher (Empidonax trailii extimus) and foraging for a large number of resident and neotropical migratory birds during the breeding season and migration. We determined the range of potential Alternative Future growth patterns for the basin (Alternative Futures) and compared them for their relative impacts on a suite of environmental parameters including hydrology, biodiversity, and landscape vegetation pattern. The intent is to inform decision makers of which potential Alternative Future would have the greatest and least impacts on those parameters.
Upper San Pedro River Basin in Arizona and Sonora, Mexico
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Regional Planning
Regional Planning
2000
2001
false
Envisioning
Impact Assessment
Public
Domain Expert
Government
Method And Technology Expert
Planner
Policy Expert
Public
Researcher
Resource Owner
Scientist
Stakeholder Representative
Regional Extent
Steinitz's Framework
Phase 1 - Representation Models
Phase 2 - Process Models
Phase 3 - Evaluation Models
Phase 5 - Impact Models
Simulation
Weighted Linear Combination
What-If Analysis
Arcgis
Habitat Suitability
Hydrologic Analysis
Landscape Analysis And Modeling
Vegetation Modeling
Steinitz, A. , Hector, Bassett, S. , Carl, Flaxman, M. , Goode, T. , Maddock, T. , Mouat, D. , Peiser, R. & Shearer Allan (2003). Alternative Futures for Changing Landscapes: the Upper San Pedro River Basin in Arizona and Sonora. Washington, DC: Island Press.
Carl Steinitz
Geodesign Case Studies
SDS Case Studies
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