利用“3S”技术进行区域土壤侵蚀研究——以四川省泸定县冷碛镇为例  

Research on Region Soil Erosion Based on 3S Technology:a Case Study of Lengqi Town,Luding County,Sichuan Province

作　　者：付萧[1,2] 鲁恒[1,2] 庄文化[1,2] 杨正丽[1,2] 

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,成都610065 [2]四川大学水利水电学院,成都610065

出　　处：《中国农村水利水电》2015年第5期93-96,共4页China Rural Water and Hydropower

基　　金："十一五"国家科技支撑计划项目(2006BAJ05A13);中央高校基本科研业务费项目(2013SCU11006);数字制图与国土信息应用工程国家测绘地理信息局重点实验室开放基金项目(DM2014SC02);德阳市重点科技支撑计划项目(2013ZZ074-05)

摘　　要：为解决当前区域土壤侵蚀量快速调查的问题,以四川省泸定县冷碛镇为研究区,直接引入修正土壤流失方程(RUSLE),利用遥感影像和其他非遥感数据,选取了合适的影响因子,快速地获取了该区域的土壤侵蚀状况,并研究了土壤侵蚀与土地利用的相互关系。研究结果表明:冷碛镇大部分土地属于微度和中度侵蚀,少量土地属于极强烈和剧烈侵蚀;侵蚀强度大的区域多为植被覆盖度低得区域,如:未利用土地和部分无作物覆盖耕地。该研究为冷碛镇的土地利用和水保决策提供了依据。In order to investigate fast the current regional soil erosion,the Lengqi Town of Luding County,Sichuan Province is selected as the research site,the revised universal soil erosion equation is directly introduced,remote sensing images and other data are used,and the appropriate impact factors are selected,the regional soil erosion condition is quickly acquired,and the relationship between soil erosion and land use is researched.The experiment results show that most of the land in Lengqi Town belongs to the micro and moderate erosion degree,a small amount of land belongs to the extremely strong and intense erosion;large erosion areas are low vegetation coverage areas,such as unused land and no crop covered land.The research provides a basis for Lengqi Town land use and soil conservation decision.

关 键 词：“3S”技术 修正通用土壤流失方程 土地利用 土壤侵蚀 

分 类 号：S159[农业科学—土壤学]