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地下水库已成为改善区域水资源时空分布的有效手段,定量评价地下水库与地表水库的有效蓄水率对提高区域水资源利用率具有重要意义.滹沱河地下水库为例,通过地下水流数值模拟方法,结合GIS技术计算不同人工补给条件下的滹沱河地下水库的有效蓄水率,并与上游黄壁庄水库有效蓄水率进行了对比研究.结果表明,地下水库的有效蓄水率在80%~91%之间,随着人工补给量的增加呈减小的趋势,黄壁庄水库的有效蓄水率在50%~80%之间,随着入库水量的增加呈增大的趋势;对比分析结果表明,地下水库储水效率明显优于地表水库,为地下水库-地表水库联合调蓄方案的制订提供科学依据.
Underground reservoirs have become an effective means to improve the spatial and temporal distribution of regional water resources.It is of great significance to quantitatively evaluate the effective water storage rates of underground reservoirs and surface reservoirs to improve the utilization rate of regional water resources.Huotuohe underground reservoir as an example, through numerical simulation of groundwater flow , Combined with GIS technology to calculate the effective storage rate of Hutuo River underground reservoir under different artificial recharge conditions and compared with the effective water storage rate of the upstream Huangbizhuang Reservoir.The results show that the effective water storage rate of underground reservoir is between 80% %, With the increase of artificial recharge volume decreasing, the effective water storage rate of Huangbizhuang Reservoir is between 50% and 80%, and tends to increase with the increase of water inflow. The comparative analysis shows that The efficiency of underground water storage is obviously better than that of surface water reservoirs, which provides a scientific basis for formulating the joint storage and storage plan of underground water reservoirs and surface reservoirs.