昌马水库运行后疏勒河流域盆地地下水补给资源变化分析

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%。

ANALYSIS OF THE VARIATION OF GROUNDWATER RECHARGE RESOURCES IN THE SHULEHE RIVER BASIN AFTER THE CHANGMA RESERVOIR RUNNING

Through discussion of conversion between the river resources and groundwater resources of the main basins in the different period in the Shelehe River basin before and after the Changma reservoir running and comparative analysis the reason of variation of the groundwater recharge resources and the main recharge term, it is expounded that the total trend of the groundwater recharge resources is reduced, the recharge condition and renew capacity of the groundwater is weakened. After Changma reservoir running, comparing to 60s and 90s of the last century, the groundwater recharge amount of Tashi Basin in the middle reach reduced so great that the amounts reached at 3·11×108m3and 2·95×108m3respectively, the groundwater recharge amount of Anxidun- huang and Huahai basins is increased a little in the lower reaches. Comparing with the 60s of the last century, the spring overflow in front of Changma proluvial fan reduced about 53·2 percent.