Modelling Watershed Scale Soil Loss Prediction and Sediment Yield Estimation

Wen-Chieh Chou ()

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2010, vol. 24, issue 10, 2075-2090

Abstract: Computer simulation models are becoming increasingly popular in predicting soil loss for various land use and management practices. A GIS-based system, GeoUSLE, was developed in this study for soil loss prediction and sediment yield estimation in the watershed scale. The Universal Soil Loss Equation (USLE) and watershed analysis models are incorporated in the system. The required watershed information and USLE factors are derived from digital elevation models (DEMs) and remote sensing data. The GIS-based system can flexibly delineate drainage networks and watersheds and rapidly query the sediment yield at any point or watershed outlet via the point-and-click interface. The study presents an example application of the system to an agricultural reservoir watershed in central Taiwan. The estimated result shows that the developed system scales up USLE applications from the slope to the watershed, which can be used to assess the erosion hot spots in a watershed for the management decision making. Copyright Springer Science+Business Media B.V. 2010

Keywords: Soil erosion; Sediment yield; Digital elevation models; Remote sensing (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (11)

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DOI: 10.1007/s11269-009-9539-6

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