基于GIS的黄土高原水蚀区土壤侵蚀分析——以窟野河流域为例

A GIS-BASED SOIL EROSION ANALYSIS ON WATER EROSION AREA OF THE LOESS PLATEAU:A CASE STUDY IN THE KUYE RIVER BASIN

利用GIS技术的空间分析功能,研究了降雨、地形、土壤类型和土地利用类型等因子对黄土高原水蚀区——窟野河流域土壤侵蚀强度的综合影响.结果表明,除流域西北部侵蚀强度较低外,中部至南部侵蚀强度均较高,且由北向南呈增高趋势.这对于防治水土流失、治理土地沙漠化、恢复生态环境具有一定参考意义.

The synthesis erosional influence on Kuye River basin, which is brought by rainfall, terrain, soil type and land utilization type, was studied with the support of GIS technology. The results indicated that, the erosion intensities in central and south basin were relatively high, while northeast was lower, and there was an obvious tendency from north to south. This paper is significant for preventing water loss and soil erosion, controlling land desertification and restoring ecological environment.