基于3S技术的磨子潭水土流失动态监测研究  

Dynamic monitoring of soil erosion in Mozitan based on 3S technology

作　　者：王冬 杨学志[1,2] 董张玉 邹橙[1,2] WANG Dong;YANG Xuezhi;DONG Zhangyu;ZOU Cheng(School of Computer and Information, Hefei University of Technology, Hefei 230601, China;Anhui Province Key Laboratory of Industry Safety and Emergency Technology, Hefei 230601, China)

机构地区：[1]合肥工业大学计算机与信息学院,安徽合肥230601 [2]工业安全与应急技术安徽省重点实验室,安徽合肥230601

出　　处：《合肥工业大学学报（自然科学版）》2020年第8期1052-1058,共7页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(41601452);安徽省重点研究与开发计划资助项目(1704a0802124)。

摘　　要：文章以1985年、1990年、2000年、2010年、2015年的Landsat TM/ETM数据为信息源提取土地覆盖、植被覆盖度等信息,结合数字高程模型(digital elevation model,DEM)数据,在地理信息系统(geographic information system,GIS)技术空间分析功能的支持下,依据水利行业标准,通过“3S”叠加分析技术对安徽省磨子潭水库流域近30 a水土流失变化状况进行研究。研究结果表明,1984-2015年间磨子潭水库流域水土流失程度逐年好转,提高区域林地面积、增加中覆盖及其以上面积有利于减轻水土流失。This paper uses the Landsat TM/ETM data of 1985,1990,2000,2010 and 2015 to extract land cover and vegetation information combined with digital elevation model(DEM)data.Supported by the spatial analysis function of geographic information system(GIS)technology and according to the Standards for Classification and Gradation of Soil Erosion(SL 190-2007)of the water conservancy industry,the dynamic changes of soil erosion in the Mozitan Reservoir in Anhui Province for nearly 30 years are evaluated and analyzed using 3S overlay analysis.The results show that the intensity of soil erosion in the Mozitan Reservoir watershed from 1984 to 2015 was decreasing gradually.It is beneficial to reduce soil erosion by increasing forestland and vegetation coverage.

关 键 词：水土流失 动态监测 遥感与地理信息系统(GIS)技术 叠加分析 磨子潭水库 

分 类 号：S157.1[农业科学—土壤学]