滇西北香格里拉土壤侵蚀动态遥感监测研究  

Dynamic Remote Sensing Monitoring of Soil Erosion in Shangri-La,Northwest Yunnan

作　　者：杨超[1] 王金亮[1] 

机构地区：[1]云南师范大学旅游与地理科学学院,云南昆明650500

出　　处：《昆明理工大学学报（自然科学版）》2015年第5期31-39,共9页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(41271230);云南省中青年学术技术带头人培养项目(2008PY056)

摘　　要：土壤侵蚀监测作为水土保持研究的重点课题,而GIS和RS技术的结合又可以对土壤侵蚀分布与强度的动态变化进行快速监测.本文以香格里拉市为研究区域,利用Landsat TM(1989、1999年)、ETM+(2003年)及Landsat OLI(2013年)四期遥感数据,参照国家水利部颁布的《土壤侵蚀分类分级标准》,针对香格里拉的土壤侵蚀状况进行动态监测研究.结果表明:1989—2013年,香格里拉土壤侵蚀面积逐年在增加,但总体增幅不大,其中轻度侵蚀占侵蚀类型比例较大;中度、强烈、极强、剧烈侵蚀面积、比例依次递减,且随着人类生产活动加剧及时间的进程,香格里拉2013土壤侵蚀最为严重,土壤侵蚀整体侵蚀状况不容乐观,建议采取相应措施加强水土保持防治及土壤保护工作.Soil erosion monitoring is a key topic of soil and water conservation researches. The combination of GIS and RS technology can rapidly monitor the dynamic change of the distribution and the intensity of soil erosion.With reference to the soil erosion classification and grading standards issued by the Ministry of Water Resources,Landsat TM（ Year 1989 1999）,ETM ＋（ Year 2003） and Landsat OLI（ Year 2013） are adopted as remote sensing data to conduct a research of dynamic monitoring of soil erosion in Shangri-La. The results show that in1989—2013,the area of soil erosion in Shangri-La increases yearly,but the overall increase is small,and mild erosion accounts for a larger proportion of erosion type; the area and the proportion of moderate,strong,extremely strong and intense erosion is descending; and with increasing human activities,the most serious soil erosion is in the year 2013. With the serious overall situation of soil erosion,appropriate measures should be taken to strengthen soil and water conservation.

关 键 词：RS和GIS技术 土壤侵蚀 动态监测 水土保持 香格里拉 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]