Impact of groundwater recharge in underground reservoirs on groundwater production capacity
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Abstract:
Stable wat er sources are impo rtant for ur ban dev elopment. After the operat ion of the South2t o2Nor th Water Diversio n Pro ject, the r edundant wat er can be recharg ed int o under gr ound reservo ir s artificially to im pr ove the wat er supply guaranteed rate in Beijing . From the end o f 2014, the M iddle Ro ute of the So ut h2to2Nort h Wat er Diver sion Pr oject supplies wat er to Beijing and recharg es g ro undwater throug h t he Chaobai River in the nex t five y ears. Acco rding to t he appro ved design scheme of the Miy un Stor age Project , the annual r echar ge perio d is from Mar ch 1st to December 15th, and recharg e rat e is about 100 to 300 millio n m3 / a. The backwat er is about 12 km upstream of the Niulanshan rubber dam, fo rming a sur face of about 480 hectar es. A numerical model of g ro undwater flow was dev elo ped using GM S to ev aluate the impact s of three r echar ge schemes o n the gr oundwat er lev el and pro ductio n capacity in the study area.
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