期刊论文

中文

水土保持学报

1009-2242

2009

23

5

61-66

10.3321/j.issn:1009-2242.2009.05.013

中国科学院水利部水土保持研究所知识创新领域前沿课题 国家“973”计划项目（2007CB407203）

本校为其他机构

通过对陕西省土壤侵蚀的定量评估,探索省域尺度上土壤侵蚀定量评价制图方法,以期为第四次全国土壤侵蚀普查提供技术支撑.利用陕西省日降雨数据、土壤类型图、土地利用图、DEM、植被覆盖图,选择CSLE模型.在ArcGIS平台上计算研究区2006年土壤侵蚀量,并与水利部标准评价结果进行对比分析.探索了坡度坡长变换对土壤侵蚀的影响.定量化的评价结果能较好的反映气候,土壤及水保措施对土壤侵蚀的影响,比水利部标准评价结果更能反映实际侵蚀.坡度坡长变换后对土壤侵蚀有明显影响.在GIS支持下,通过土壤侵蚀模型进行定量评价,可高效、客观反映土壤侵蚀情况及其主要影响因子,对区域治理和有关决策有极其重要参...

The purpose of this study is to explore the mapping methods for quantitative assessment of soil erosion in the provincial scale with the hoping of providing some technical support to the 4th national soil erosion survey by quantitative assessment of soil erosion in Shaanxi province. We collected the daily precipitation data, soil type map, land use map, digital evaluation map(DEM) and vegetation cover graphs of Shaanxi province, with the using of CSLE model to calculate the soil loss of this study area in 2006, and compared the results with the standard evaluation results of Ministry of Water ...