坡地土壤侵蚀的程度,在颇大程度上决定着土地利用.在表层沃土的侵蚀超过了它的天然恢复能力以至造成土壤肥力下降的情况下,必须改变坡面的土地利用结构或采取专门的水土保持措施.在农业用地上修建小型蓄水池时,它的容积和堤高,在很大程度上也取决于土壤侵蚀的大小.但是,现行的固体径流的计算方法, The degree of soil erosion on slope land largely determines the land use.When the erosion of surface fertile soil exceeds its natural ability to recover and causes the decline of soil fertility, it is necessary to change the land use structure of the slope or take special soil and water Maintaining Measures When building small reservoirs on agricultural land, its volume and dike height also depend to a great extent on the amount of soil erosion, but the current calculation of solid runoff,