Author(s): Chang-Tai Tsai; Chiang-Nuo Chen; Chih-Heng Tsai; Lu-Chun Kuo
Linked Author(s):
Keywords: Physiographic soil erosion-deposition model (PSED); Sediment yield; Soil erosion; GIS
Abstract: Soil erosion and sediment yield are two of the critical factors for managing watersheds. This study attempts to develop a physiographic soil erosion-deposition model (PSED) by linking GIS to a physiographic rainfall-runoff model. In addition, the erosion and deposition of soil are also taken into consideration. The PSED model can be first used to obtain the runoff discharges and the concentration of suspended sediment hydrographs in the Chin-Shui River catchment caused by typhoon events. Then the sediment yield was able to obtain which was within a reasonable range of the observed data obtained. Thus, the PSED model may be useful for estimating sediment yield in river catchments.
Year: 2004