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Analysis on Characteristics of Groundwater Isotopes in Yinchuan Plain

机译：银川平原地下水同位素特征分析

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摘要

The results of groundwater isotopic analysis showed that the groundwater in the Yinchuan Plain had different recharge patterns, The phreatic water in the proluvial fan of the Helan Mountain was mainly recharged by precipitation and the lateral flow from the Helan Mountain; while the phreatic water in the proluvial fan and the alluvial plain of the Qingtongxia Gorge was mainly recharged by infiltration of irrigation water from the Yellow giver. In the natural state, the confined water belonged to paleo-water which had been recharged from the ancient geological time, with very slow circulation, but in the urban area where groundwater is exploited persistently, large volume of new water entered the confined aquifers, and the proportion of recharge from the upper phreatic water accounted for 50%.Aiming at the different hydrogeological conditions and water circulation characteristics in the Yinchuan Plain, the paper suggested some corresponding measures for rational development of groundwater resources.
机译：地下水同位素分析结果表明，银川平原地下水补给模式不同，贺兰山扇扇中的潜水水主要由降水和贺兰山的侧向补给;而青铜峡峡冲积扇和冲积平原中的潜水水主要是由黄给水的渗入灌溉补给的。在自然状态下，承压水属于从古代地质时代开始补给的古水，循环非常缓慢，但是在持续开采地下水的市区中，大量的新水进入了承压含水层，并且针对银川平原不同的水文地质条件和水循环特征，提出了相应的合理开发地下水资源的措施。

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