The division of small watershed units in the Danjiangkou Reservoir Area is fundamental work for ensuring water qual-ity safety and building water ecological civilization in the reservoir area.We selected the Danjiangkou Reservoir Area(Shiyan Cit-y)in Hubei Province as the research area and used high-precision DEM,high-resolution remote sensing images,and other data sources.According to the 9 third-level watershed areas and 23 fourth-level watershed areas in Hubei Province watershed com-prehensive governance and coordinated development planning outline,1 472 fifth-level sub-watershed units were delineated,forming an important ecological function area small watershed division method for watershed comprehensive governance units by u-sing methods such as automatic river network extraction and human-machine interaction adjustment.The results can provide a decision-making basis for the prevention and control of soil erosion in the Danjiangkou Reservoir of Hubei Province,the evalua-tion of the effectiveness of small watershed management,and the formation of a joint effort among various departments for soil ero-sion prevention and control.
关键词
小流域单元划分/数字高程模型/丹江口库区/流域治理规划
Key words
watershed governance planning/sub-watershed unit division/digital elevation model/Danjiangkou Reservoir Ar-ea
维普
万方数据