The aim of this study is to provide some references for decrease of soil loss and for improvement of ecological environment in Yanhe Basin of Loess Plateau by quantitatively assessing effect of returning farmland to forest (pasture) and changes of precipitation on soil erosion. 【Method】 The daily precipitation data from 35 gauges in the period of 1950-2000, soil type map, a digital elevation model (DEM), land use maps based on the interpretation of Landsat TM images acquired in 1997 and 2000 and ...
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