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根据黄壁庄水库入库控制站--冶河平山水文站1958-2010年实测水沙资料,分析黄壁庄水库多年来的入库水沙演变情况。黄壁庄水库自建库以来入库水沙均呈逐渐减少的趋势,年内分配不均,年际变化大。1980年以前水沙均较大,2000年以后,降水的减少以及上游对地表水资源的开发利用,使水库的入库水量急剧减少。加之国家对水保工作的大量投入,使流域产沙量减少,入库沙量相应减少,水库的泥沙淤积相应减缓。
According to the measured water and sediment data of Huangbizhuang Reservoir Control Station - Yehe Pingshan Hydrological Station from 1958 to 2010, the evolution of Huangbizhuang Reservoir’s inflow and discharge over the years was analyzed. Since the establishment of reservoir, Huangbizhuang Reservoir has been gradually decreasing trend of sediment inflow and discharge, uneven distribution during the year, interannual variation. The water and sediment before 1980 were large. After 2000, the decrease of precipitation and the exploitation and utilization of surface water resources in the upper reaches resulted in the drastic reduction of water storage in the reservoir. Coupled with the state’s heavy investment in water and soil conservation, the sediment yield in the basin has been reduced, the amount of sediment taken into the reservoir has decreased correspondingly, and the sedimentation in the reservoir has been correspondingly slowed down.