黄河中游多沙粗沙区水土流失动态变化分析  

Analysis of Dynamic Change of Soil and Water Loss in the Middle Yellow River Basin

作　　者：高健翎[1] 殷宝库[1] 张建国[1] 高云飞[1] 赵帮元[1] 苏鹏飞[1] 

机构地区：[1]黄河上中游管理局,陕西西安710021

出　　处：《人民黄河》2016年第10期111-114,共4页Yellow River

基　　金：国家重点研发计划项目(2016YFC0402404);全国水土流失动态监测与公告项目(1261520154801)

摘　　要：以2011年和2014年黄河中游皇甫川、孤山川、窟野河、秃尾河4条支流涉及的准格尔旗和神木县两期高分辨率遥感影像为主要信息源,提取了流域内植被覆盖、土地利用、土壤侵蚀等信息,结合各支流水沙情况,分析黄河中游多沙粗沙生态环境状况。结果表明:该区植被覆盖度提高,由低和中低覆盖度为主转变为中低和中覆盖度为主;土地利用方式变化主要集中在林地、草地和其他土地,植被面积增大;土壤侵蚀强度减弱,水土流失面积减小;大力实施水土保持措施对减少径流泥沙起到积极作用,生态环境得到明显改善。This paper selected two periods of remote sensing images in four typical basins relating to Junggar and Shenmu Counties,including Huangfuchuan River,Gushanchuan River,Kuye River and Tuwei River in the middle Yellow River basin and extracted the information of land use,vegetation coverage and soil erosion in 2011 and 2014 to analyze the ecological environment and to reveal the area of soil erosion and its control effect combining with runoff and sediment data. The results show that the vegetation coverage is dominant from low coverage and low-medium coverage in 2011 to low-medium and medium coverage in 2014; land use change mainly concentrates in woodland,grassland and other lands; the intensity of soil erosion and area of soil and water loss decreases significantly; the implementation of soil and water conservation measurements plays a positive role in reducing runoff and sediment,and the ecological environment improves significantly.

关 键 词：多沙粗沙区 水土流失 水土保持 遥感影像 黄河中游 

分 类 号：S157.1[农业科学—土壤学] TV882.1[农业科学—农业基础科学]