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The Rainwater Basin Joint Venture (RWBJV) used wetland complex models for analysis in their conservation actions. A Historic Wetland Mask (HWM) was used as analysis features for the playa wetlands. The HWM is a GIS layer created by merging all of the playa wetland features identified from four sources: historic soil surveys , National Wetland Inventory, Soil Survey Geographic Database and a 2005 Ducks Unlimited satellite inventory. Using the HWM allows the model to analyze all potential historic wetlands and evaluate their restoration potential as waterfowl habitat. A combination of raster and vector-based spatial analysis was performed on the historic wetland footprints. Factors included in the mask were size,...
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This ranking criterion was developed to identify those pits that most negatively impact watershed integrity of publically owned and Wetland Reserve Program (WRP) playa wetlands. Currently, the U.S. Fish and Wildlife Service (USFWS) manages 59 Waterfowl Production Areas (WPAs) while the Nebraska Game and Parks Commission oversees 35 Wildlife Management Areas (WMAs). These wetlands flood as a result of precipitation or snow melt. With the transition to pivot irrigation, a large number of irrigation reuse pits have been abandoned over recent years. Although not being used for irrigation, these pits continue to fill with water from precipitation events shortstopping water that could have reached the neighboring...
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