近年来窟野河水沙量有显著减少的趋势，但存在稀遇暴雨下的增沙可能。
In addition, the runoff and sediment load exhibits an obvious decrease tendency in recent years, but it is possible that sediment yield may increase sharply under a same intensive rainstorm.
因此，构筑减少黄河粗泥沙的第一道防线，建议首选位于减沙效益低值区的窟野河和皇甫川流域。
Therefore, in order to construct the first defense line for soil erosion, low benefit value zone which locates in Kuyehe River basin and Huangfuchuan River basin is commanded to be selected firstly.
因此，构筑减少黄河粗泥沙的第一道防线，建议首选位于减沙效益低值区的窟野河和皇甫川流域。
Therefore, in order to construct the first defense line for soil erosion, low benefit value zone which locates in Kuyehe River basin and Huangfuchuan River basin is commanded to be selected firstly.
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