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通过对昌马水库运行前后不同时期疏勒河流域各盆地河水—地下水相互转化的论述,详细对地下水补给量及其各主要补给项的变化原因进行了对比分析,流域地下水补给资源总体呈减少趋势,地下水的补给条件与更新能力被削弱。昌马水库运行后,中游玉门踏实盆地地下水补给量大幅减少,比上世纪60年代、90年代末分别减少了3.11×108m3、2.95×108m3,下游安西敦煌、花海盆地地下水补给量小幅增加。中游盆地泉水溢出量大幅衰减,与60年代比削减了53.2%。
Through the discussion of river-groundwater mutual transformation in different basins in the Shulehe basin before and after the operation of Changma reservoir, the causes of the groundwater recharge and its main recharge items are analyzed in detail. The groundwater recharge resources in the basin are generally decreasing , Groundwater recharge conditions and renewal capacity weakened. After the operation of Changma Reservoir, the recharge of groundwater in the middle reaches of Yumen Sag was significantly reduced, 3.11 × 108m3 and 2.95 × 108m3 less than that in the 1960s and 1990s, respectively. The supply of groundwater in the Lower Reaches of Anxi Dunhuang and Huahai increased slightly. The spillover of spring water in the middle reaches of the basin dropped significantly, cutting by 53.2% from the 1960’s.