黃藏寺水利樞紐對(duì)張掖盆地地下水影響研究
發(fā)布時(shí)間:2018-03-09 11:13
本文選題:黑河中游盆地 切入點(diǎn):地表水—地下水耦合模型 出處:《人民黃河》2017年06期 論文類型:期刊論文
【摘要】:黃藏寺水利樞紐工程建成運(yùn)行后,將在輸水關(guān)鍵期采用大流量輸水并廢除部分平原水庫(kù)或其灌溉功能,地下水補(bǔ)給的減少或?qū)?duì)黑河中游張掖盆地地下水環(huán)境產(chǎn)生影響。由于黑河中游張掖盆地地表水與地下水存在密切聯(lián)系,單獨(dú)采用地下水?dāng)?shù)值模型難以準(zhǔn)確描述地表水與地下水的轉(zhuǎn)化關(guān)系,因此采用MIKE-SHE軟件建立了黑河中游盆地的地表水—地下水耦合數(shù)值模型,通過(guò)校正后的模型對(duì)工程運(yùn)行后的地下水演變進(jìn)行了預(yù)測(cè)。模擬結(jié)果表明:黃藏寺水利樞紐工程運(yùn)行對(duì)黑河中游張掖盆地地下水影響有限,河道與水庫(kù)滲漏減小引起的地下水位下降值遠(yuǎn)小于當(dāng)?shù)氐叵滤惶烊蛔兎?可由地下水系統(tǒng)自然調(diào)節(jié)。
[Abstract]:Huangzangsi water conservancy project after the operation, in the critical period of water with large flow water and the abolition of part of the plain reservoir or its irrigation, groundwater recharge will reduce or on the middle reaches of Heihe Zhangye basin groundwater environmental impact. Because of Heihe in the middle reaches of Zhangye basin, the surface water and groundwater are closely connected, separately using the groundwater numerical model it is difficult to accurately describe the conversion between surface water and groundwater, thus established between surface water and groundwater in the middle reaches of Heihe basin coupled numerical model by using MIKE-SHE software, through the corrected model of engineering operation after the groundwater evolution were predicted. The simulation results show that the huangzangsi water conservancy project to run a limited impact on groundwater in the middle reaches of Heihe basin in Zhangye River and reservoir leakage, reduce underground water level caused a decrease of the value of the underground water level is far less than the local natural amplitude can be It is naturally regulated by the groundwater system.
【作者單位】: 環(huán)境保護(hù)部環(huán)境工程評(píng)估中心;中國(guó)科學(xué)院地質(zhì)與地球物理研究所;中國(guó)科學(xué)院大學(xué);
【分類號(hào)】:P641;TV61
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本文編號(hào):1588279
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