黄藏寺水利枢纽对张掖盆地地下水影响研究
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摘要
黄藏寺水利枢纽工程建成运行后,将在输水关键期采用大流量输水并废除部分平原水库或其灌溉功能,地下水补给的减少或将对黑河中游张掖盆地地下水环境产生影响。由于黑河中游张掖盆地地表水与地下水存在密切联系,单独采用地下水数值模型难以准确描述地表水与地下水的转化关系,因此采用MIKE-SHE软件建立了黑河中游盆地的地表水—地下水耦合数值模型,通过校正后的模型对工程运行后的地下水演变进行了预测。模拟结果表明:黄藏寺水利枢纽工程运行对黑河中游张掖盆地地下水影响有限,河道与水库渗漏减小引起的地下水位下降值远小于当地地下水位天然变幅,可由地下水系统自然调节。
Huangzangsi Water Control Project is planning to use a larger flow rate to transport water and to shut down some reservoirs in the basin.The decrease of groundwater recharge due to this new project will affect the groundwater environment in the middle reaches of Heihe River,i.e.the Zhangye Basin.Because of the close relationship between surface water and groundwater in Zhangye basin,it is difficult to describe the interaction between surface water and groundwater by a groundwater numerical model.Therefore,based on the MIKE-SHE software,a coupled surface-water and ground-water numerical model was established in Zhangye basin.Base on the calibrated model,the groundwater flow during future project operations was simulated.The simulation results show that the drawdown of groundwater caused by the decrease of leakage from the river and reservoirs is much smaller compared with local groundwater table fluctuation.Thus,the small change in groundwater level can be naturally adjusted by the local groundwater system.Therefore,the environmental effect of groundwater in Zhangye basin is limited according to the simulation results.
Huangzangsi Water Control Project is planning to use a larger flow rate to transport water and to shut down some reservoirs in the basin.The decrease of groundwater recharge due to this new project will affect the groundwater environment in the middle reaches of Heihe River,i.e.the Zhangye Basin.Because of the close relationship between surface water and groundwater in Zhangye basin,it is difficult to describe the interaction between surface water and groundwater by a groundwater numerical model.Therefore,based on the MIKE-SHE software,a coupled surface-water and ground-water numerical model was established in Zhangye basin.Base on the calibrated model,the groundwater flow during future project operations was simulated.The simulation results show that the drawdown of groundwater caused by the decrease of leakage from the river and reservoirs is much smaller compared with local groundwater table fluctuation.Thus,the small change in groundwater level can be naturally adjusted by the local groundwater system.Therefore,the environmental effect of groundwater in Zhangye basin is limited according to the simulation results.
引文
[1]黄海真,王娜,董红霞.黄藏寺水利枢纽工程替代平原水库环境影响研究[J].水利水电技术,2015,46(12):77-80.
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[8]胡立堂.黑河干流中游地区地表水和地下水集成模拟与应用[J].北京师范大学学报(自然科学版),2014,50(5):563-569.
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[11]张浩佳,吴剑锋,林锦,等.GSFLOW在干旱区地表水与地下水耦合模拟中的应用[J].南京大学学报(自然科学),2015,51(3):596-603.
[12]卢小慧,李奇龙.基于MIKE SHE模型的流域地下水水文响应[J].长江科学院院报,2015,32(1):11-15.
[13]李希萌.黑河中游地下水数值模拟模型[D].北京:清华大学,2014:18-26.
[2]张应华,仵彦卿.黑河流域中游盆地地下水补给机理分析[J].中国沙漠,2009,29(2):370-375.
[3]周剑,程国栋,王根绪,等.综合遥感和地下水数值模拟分析黑河中游三水转化及其对土地利用的响应[J].自然科学进展,2009,19(12):1343-1354.
[4]童少青,董艳辉,王礼恒.非结构化网格MODFLOW模拟方法与应用[J].水文地质工程地质,2016,43(2):9-16.
[5]赵清,黄维东.黑河水量统一调度及流域治理成效分析评价[J].人民黄河,2015,37(8):60-63.
[6]王道席,张婕,杜得彦.黑河生态水量调度实践[J].人民黄河,2016,38(10):96-99.
[7]涂亮,宋汉周.基于Visual Modflow的黑河中游地下水流数值模拟[J].勘察科学技术,2009(2):19-23.
[8]胡立堂.黑河干流中游地区地表水和地下水集成模拟与应用[J].北京师范大学学报(自然科学版),2014,50(5):563-569.
[9]TIAN Y,ZHENG Y,WU B,et al.Modeling Surface WaterGroundwater Interaction in Arid and Semi-Arid Regions with Intensive Agriculture[J].Environmental Modelling&Software,2015,63:170-184.
[10]胡立堂,王忠静,赵建世,等.地表水和地下水相互作用及集成模型研究[J].水利学报,2007,38(1):54-59.
[11]张浩佳,吴剑锋,林锦,等.GSFLOW在干旱区地表水与地下水耦合模拟中的应用[J].南京大学学报(自然科学),2015,51(3):596-603.
[12]卢小慧,李奇龙.基于MIKE SHE模型的流域地下水水文响应[J].长江科学院院报,2015,32(1):11-15.
[13]李希萌.黑河中游地下水数值模拟模型[D].北京:清华大学,2014:18-26.