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了解阿克苏河流域土壤侵蚀状况是维护流域生态安全的关键。文章基于Landsat TM卫星影像、土地利用数据、地形图和植被覆盖数据,借助ENVI和Arc GIS软件,针对阿克苏河流域土壤侵蚀展开分析,结果表明:阿克苏河流域土壤侵蚀强度上以轻度和中度侵蚀为主,分别占侵蚀总面积的27.77%、44.76%,侵蚀类型上以风力侵蚀为主;2005-2013年间流域侵蚀区土地好转面积1 381.2 km2,退化面积829.5 km2。阿克苏河流域内的土壤侵蚀情况总体在改善,但在局部地区,土壤侵蚀仍有加剧现象。
Understanding the soil erosion status of the Aksu River Basin is the key to safeguard the ecological security in the basin. Based on Landsat TM satellite images, land use data, topographic maps and vegetation cover data, an analysis of soil erosion in the Aksu River Basin was carried out by means of ENVI and ArcGIS software. The results showed that the soil erosion intensity of Aksu River Basin was mild and moderate Which mainly cover 27.77% and 44.76% of the total erosion respectively. Wind erosion is the main type of erosion. During 2005-2013, the area of land reclamation in the erosion area is 1 381.2 km2 and the degradation area is 829.5 km2. Soil erosion in the Aksu River basin is improving overall, but in some areas, soil erosion is still aggravating.