土地沙漠化是当前世界环境问题中的重要问题。当前,黄河流域有沙漠沙地7.89万km~2,占流域面积(包括闭流区)的9.93%。土壤遭受风蚀的面积更大,在10万km~2以上,这样大的面积,不论从开发流域自然资源,还是从保护流域自然环境考虑,都是不容忽视的。同 Land desertification is an important issue in the current world environmental problems. At present, there are 78,900 km ~ 2 of desert sand in the Yellow River Basin, accounting for 9.93% of the basin area (including the closure area). Soil erosion is more affected by wind erosion, with an area of ​​more than 100,000 km2. Such a large area should not be overlooked in terms of developing the natural resources of the basin or protecting the natural environment of the basin. with