水土保持通报2016，Vol.36Issue(3)：271-276,283,7.
基于 GIS 与 RUSLE 模型的喀斯特地区土壤侵蚀研究--以贵州省为例
Research on Soil Erosion in Karst Area Based on GIS and RUSLE Model- A Case Study in Guizhou Province
摘要
Abstract
[Objective] A rapid and quantitative study has been done on soil erosion in Guizhou Province in order to provide scientific basis for the management of soil erosion and land use decision .[Methods] With the support of GIS technology and data on the rainfall ,soil type ,land use ,DEM and MODIS‐NDVI ,we used RUSLE model to estimate of soil erosion .[Results] The annual average soil erosion modulus of the study area was 880 .81 t/km 2 ,which belongs to mild erosion .Most area belongs to the micro erosion with soil erosion modulus less than 500 t/(km2 ・ a) ,which accounted for 59 .60% of the total study area .Soil erosion area(above the mild erosion) reached 71 164 .14 km2 ,which accounted for 40 .40% of the total area . The area above strong erosion level was 10 431 .60 km2 ,which accounted for 5 .91% of the total area and mainly distributed in the northwest and northeast of the research area ,and in the Northern Dalou Mountain , Wuling Mountain ,Southeastern Miaoling Mountain and Western Wumeng Mountain with high altitude and middle east of Wujiang River ,southwest of North Panjiang and other river basins .[Conclusion] Woodland , farmland ,grassland and region between elevation of 600 ~ 1 600 m is the key area for soil and water conserva‐tion in the future .关键词
土壤侵蚀/RUSLE/GIS/贵州省Key words
soil erosion/RUSLE/GIS/Guizhou Province分类
农业科学引用本文复制引用
孙德亮,赵卫权,李威,吴建峰,杨振华,吕思思..基于 GIS 与 RUSLE 模型的喀斯特地区土壤侵蚀研究--以贵州省为例[J].水土保持通报,2016,36(3):271-276,283,7.基金项目
2014年度“西部之光”人才培养计划项目“基于 LUCC 的贵州赤水河流域生态风险监测与评估” （）
