昌马水库运行后疏勒河流域盆地地下水补给资源及其水位变化分析

通过对昌马水库运行前后不同时期疏勒河流域各盆地地下水补给量与地下水水位动态变化分析表明:流域地下水资源呈减少趋势,地下水位表现为较强的区域性下降。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3.11亿m3、2.95亿m3,下游安西敦煌、花海盆地地下水补给量小幅增加,中游昌马洪积扇前缘泉水量与60年代比削减了53.2%。各盆地水量补给减少区水位下降,增加区水位上升,下降(上升)幅度随补给量减少(增加)而增大。

Analysis on the Variation of Groundwater Recharges and Levels in the Shulehe River Basin after the Changma Reservoir Running

Through analyzing the variation of the groundwater recharge and dynamic groundwater table in the different period in the Shulehe River basin before and after the running of Changma reservoir,It was expounded that the recharging trend of the groundwater of the basins in the Shulehe River basin was decreased and the groundwater table dropped in the area obviously.When the Changma reservoir was running the groundwater recharge to Yumentashi basin in the middle reaches of the Shulehe River basin was reduced obviously.Comparing with 60s and 90s of the last century the groundwater recharge reduced about 3.111×108m3 and 2.949×108m3.The groundwater recharge to Anxidunhuang and Huahai basin was increased a little.The spring overflow in front of Changma proluvial fan reduced about 53.2 percent.In every basin at the groundwater recharge reduced areas the groundwater table dropped,on the contrary the level rose.As the groundwater recharge increased or reduced the ground water table rose or dropped.