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无定河是黄河的支流之一,位于我国陕西省的北部,整个流域位于毛乌素沙漠沙漠的南部以及黄土高原的北部,无定河的黄土层厚度高达50到100m,切割的深度是50到250m。整个无定河流域中土质比较疏松、暴雨量较大,天然植被很少,严重的受到自然的侵蚀,在过度放牧、陡坡开垦、植被破坏的影响之下,无定河流域内的水土流失情况更加严重,在近些年来,兴建了很多的淤泥地坝,不经改善了水土流失,也有着很好的效益,本文主要探讨无定河淤地坝发展特点以及所起的效益。
Wudinghe is one of the tributaries of the Yellow River. It is located in the northern part of Shaanxi Province. The whole drainage basin is located in the south of the Mu Us desert and in the northern part of the Loess Plateau. The thickness of loess in the Wudinghe River reaches 50 to 100m and the cutting depth is 50 to 250m . In the whole area of Wuding River Basin, soil quality is relatively loose with heavy rainfall, few natural vegetation and serious natural erosion. Under the influence of overgrazing, steep slope reclamation and vegetation destruction, soil erosion in the Wudinghe River Basin is even more serious In recent years, many silt dams have been built without any improvement of soil and water loss, which is also of great benefit. This paper mainly discusses the development characteristics and the benefits of the Wuding River silt dams.