陕西省靖边县位于毛乌素沙漠南缘,风大沙多,植被稀少,沟壑纵横,水上流失严重。解放以来,全县营造防风固沙林一百五十万亩:修建坝库一千三百多座,总库容十亿立方米;治理水土流失面积二千二百七十七平方公里。年输沙量由原来的五千六百万吨,减少到六百万吨。 Jingbian County, Shaanxi Province is located in the southern edge of the Mu Us desert, wind and more sand, rare vegetation, ravines aspect, serious water loss. Since the liberation, the county has built 1.5 million mu of windbreaks and sand-fixation forests: over 1,300 dams and reservoirs with a total capacity of 1 billion cubic meters and 2,227 square kilometers of water and soil erosion. The annual sediment transport decreased from 56 million tons to 6 million tons.