Water Yield Modeling of Forested Watersheds in the Southern Appalachians

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Katherine Kove
Paul Bolstad
Chelcy Ford
Jim Vose
Thomas Burk

Climate change, insect defoliation, and management practices alter species composition and hence plant water use and catchment water yield. Tree based sap flow data measures water yield on a tree basis allowing us to gather more accurate and detailed data regarding evapotranspiration for individual tress and thus models for individual species.  Scaling up these species-specific sap flow models to the watershed level across a range of climatic conditions, sizes, elevation gradiaents and compositions allow us to determine the impact of changes in climate and/or species composition to catchement water yield. 

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