伊朗自１９６０年实施坝系工程以来，流域土地的退化问题就成为政府一直关注的焦点，同时，由于人口的迅速增加和国家实行粮食自给政策，从而更进一步加剧土地退化。严重的土壤侵蚀不但造成水库的严重淤积，而且还降低了水库的库容和发电量，如塞菲路德水库，在２５年时间里， Since the dam construction was implemented in Iran in 1960, the problem of land degradation in the basin has become the focus of government attention. At the same time, due to the rapid population growth and the state’s policy of self-sufficiency of food, the degradation of land is further aggravated. Severe soil erosion not only caused serious siltation of reservoirs, but also reduced the reservoir capacity and power generation, such as the Seife Luther reservoir, in 25 years time,