重庆“一小时经济圈”土壤侵蚀因子的提取与分析  

Analysis and Extraction of Soil Erosion Factors in "One-hour Economic Circle" of Chongqing

作　　者：向晓军[1,2] 谭德军[1,2] 罗真富[1,2] 谢洪斌[1,2] 陈凤英[1,2] 李奇[1,2] 

机构地区：[1]外生成矿与矿山环境重庆市重点实验室重庆地质矿产研究院,重庆400042 [2]煤炭资源与安全开采国家重点实验室重庆研究中心,重庆400042

出　　处：《安徽农业科学》2010年第35期20045-20047,共3页Journal of Anhui Agricultural Sciences

基　　金：重庆市国土资源和房屋管理局科技计划项目(2008-10)

摘　　要：以长寿湖周边地区为例,基于已有的美国通用土壤流失方程(USLE),给出模型各因子的计算方法,并利用GIS空间数据提取和数据运算方法,结合水利部水力侵蚀强度分级,获取研究区土壤侵蚀强度空间分布特征。结果表明:研究区的土壤侵蚀主要以微度侵蚀和轻度侵蚀为主,面积为6 611.53×104m2,占研究区面积的86.30%。这些地区主要为果园、林地和水田,该地区植被盖度高。Based on calculating factors or parameters of universal soil loss equation（USLE）,referencing to water erosion intensity grades of Ministry of Water Resources,the distribution map of soil erosion intensity was gotten by using Geographic Information System（GIS） technology taking Changshou Lake and its surrounding area as example.The results indicated that the soil erosion intensity of the study area was distributed mainly in gentle erosion intensity.The eroded area was 6 611.53×104 m2,and the percentage reached to 86.30%.The land use types was garden land,woodland and paddy field which had high vegetation cover.

关 键 词：长寿湖 USLE GIS 土壤侵蚀强度 

分 类 号：S157[农业科学—土壤学]