Aspect-induced differences in soil erosion intensity in a gullied hilly region on the Loess Plateau of China
Slope aspect exerts important influence on soil erosion intensity and geomorphologic evolution of land surfaces. However, studies on the effect of slope aspect on soil erosion are generally concentrated on slope scale, and few studies were done on basin scale. Using a DEM with resolution of 2mX2m, the erosion intensity for Wangjiagou catchment, located in a hilly region on the Loess Plateau in China, was found to vary as a function of aspect-induced differences in topoclimate; the sunny slopes (including SW, S, and SE) are prone to relatively high gully erosion and experience fast geomorphic evolution than those on the shady slopes (including NE, N, and NW aspects). Variations in soil erosion intensity can be explained largely by aspect-induced differences in soil temperature, soil water content and transpiration, soil physicochemical properties, vegetation coverage, and land use pattern on different slope aspects.
The Loess Plateau Wangjiagou Catchment Slope aspect Developing degree of gully slope (Ei) Soil erosion intensity
H.Y.Fang Q.Y. Li Q.G.Cai L.Y.Sun
Key Laboratory of Water Cycle and Related Land Surface Processes. Institute of Geographic Sciences a Key Laboratory of Modern Precision Agriculture System Integration Research College of Water Conserva
国际会议
西安
英文
6-10
2010-10-11（万方平台首次上网日期，不代表论文的发表时间）