The relative location of Zhifanggou Watershed and the Yanhe River basin, the Digital Elevation Model of Zhifanggou Watershed (Fig. 1 is generated by ArcGIS 10.2, Yanhe River is a primary tributary of the Yellow River. The Yanhe River boundary and river system are extracted by hydrological analysis tools, Zhifanggou Watershed is overlayed by the DEM map and the hillshade map. ArcGIS website: http://www.esrichina.com.cn/softwareproduct/ArcGIS/).