遥感与GIS支持下的土壤侵蚀强度快速评价方法研究  

A RAPID EVALUATION OF SOIL EROSION INTENSITY BASED ON REMOTE SENSING AND GIS

作　　者：余瞰[1] 柯长青[1] 

机构地区：[1]南京大学地理与海洋科学学院,南京210093

出　　处：《国土资源遥感》2007年第3期82-84,88,I0009,共5页Remote Sensing for Land & Resources

基　　金：国家自然科学基金项目"基于CA与MAS集成的城镇土地利用变化模拟分析(40301013)"资助

摘　　要：以TM影像、1:1万数字地形图以及其它辅助数据为基础,以土地利用类型、植被覆盖度以及坡度等作为影响因子,在遥感和GIS技术的支持下,对余江县洪湖乡的土壤侵蚀强度进行了快速分级评价实验。结果表明,该方法所获取的土壤侵蚀强度信息与实际情况比较吻合。TM image, digital topographic maps on the scale of 1：10000, and other ancillary materials were used in this study. Land use type, vegetation cover rate and slope were selected as impact factors to make a rapid evaluation of soil erosion intensity in Honghu, Yujiang County, supported by remote sensing and GIS. As a result, the classification map of soil erosion intensity was obtained. On such a basis, the situation of soil erosion intensity in the study site was analyzed, and the results show that the soil erosion intensity information derived from the method in this paper is quite close to the real situation.

关 键 词：遥感 GIS 土壤侵蚀强度 快速评价 洪湖乡 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置] S157[自动化与计算机技术—控制科学与工程]