基于GIS和RS的矿区土壤侵蚀动态研究

Dynamic Study on Soil Erosion in Mining Area Based on GIS and RS

文章以GIS为平台,利用Landsat TM和ASTER DEM数据,根据《土壤侵蚀分类分级标准》模型,研究了淮南矿区的土壤侵蚀。结果表明:淮南矿区1987年和2000年两时期的土壤侵蚀均以微度侵蚀、轻度侵蚀和中度侵蚀为主,并伴有少量的高强度侵蚀;受地下开采活动及降水变化等的影响,相比1987年,2000年的侵蚀强度正在加大,表现为低强度侵蚀正向高强度侵蚀转化,高强度侵蚀的面积不断加大。

Taking GIS as a platform,the Landsat TM and ASTER DEM data was applied to the study on the soil erosion in Huainan Mining Area according to the ＂Grading Standard of Soil Erosion Classification＂.The results showed that the soil erosion in years of 1987 and 2000 in Huainan Mining Area was a tiny erosion,light erosion and medium erosion mainly with a bit of heavy erosion.Under the influences of the underground mining activities,the rainfall variation and others,comparison with the year of 1987,the soil erosion intensity in the year of 2000 was increased.The soil erosion was converted from a low intensity to a high intensity and the area of the high erosion was steadily increased.