基于RS和GIS的阿克苏河流域土壤侵蚀研究

发布时间：2018-06-06 15:16

本文选题：土壤侵蚀 + 动态监测　；参考：《环境科学与技术》2016年S1期

【摘要】：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。
[Abstract]:Understanding soil erosion in Aksu River basin is the key to maintain ecological security. Based on Landsat TM satellite image, land use data, topographic map and vegetation cover data, and with the aid of ENVI and Arc GIS software, the soil erosion in Aksu River Basin is analyzed. The results showed that the intensity of soil erosion in Aksu River Basin was mainly mild and moderate, accounting for 27.77% of the total erosion area, respectively, and the erosion type was mainly wind erosion. The area of land improvement was 1 381.2 km ~ 2 and the degraded area was 829.5 km ~ 2 between 2005 and 2013. Soil erosion in Aksu River basin is improving, but in some areas, soil erosion is still intensified.
【作者单位】：新疆阿克苏地区环境保护监测站;
【分类号】：S157

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