皇甫川流域内蒙古段生态清洁小流域建设措施配置研究OA

To effectively control soil erosion in the Huangfuchuan,improve the regional ecological environment,and promote the construction of eco-environment friendly small watersheds,the Inner Mongolia section of the Huangfuchuan was selected as the research area.Based on a comprehensive understanding of the natural geographical conditions,land use status,water source quality,river and gully conditions,human settlements and social economic conditions of the study area,following the principle of"first zoning,then classification",the spatial analysis software ArcGIS was used to conduct superimposed analysis on four layers of land use status,surface slope,river network and water system,and vegetation coverage with a resolution of 30 m.Firstly,the prevention and protection zone,comprehensive control zone and ecological res-toration zone were delineated.Then,the configuration principles of measures for each type of prevention and control zone and the configura-tion of measures for each sub-region of soil erosion in the comprehensive management zone(loess hills and gully zone,arsenic sandstone hills and gully zone)were clarified.Six types of eco-environment friendly small watersheds construction suitable for the Huangfuchuan were pro-posed(water source protection type,ecological tourism type,harmonious living type,leisure and health care type,green industry type,and embankment dam system ecological quality improvement and efficiency type),and the construction and development directions of each type of ecological clean small watershed were pointed out.The construction goals of ecological clean small watersheds are proposed from four as-pects:soil erosion control,ecological environment improvement,human settlement improvement and social and economic development.