In order to explore the influence of over-exploitation of groundwater on the hydrochemical characteristics of groundwater, we analyzed the dynamic changes of and relationship between groundwater level and water chemistry in the condition of over exploitation by comparing groundwater level and groundwater quality between 1997 and 2010. Results showed that when groundwater level declined, magnesium ion content and sulfate content increased correspondingly, indicating that spatial changes in groundwater level is highly consistent with that in chemical composition, which means that water chemistry is greatly affected by groundwater level. Spatial superposition results suggest that 72.2% of the changes in magnesium ion content coincided with groundwater level decline, and 53.1% of the changes in sulfate contentcoincided with groundwater level decline. Over exploitation affected groundwater chemistry through changing the discharge and recharge conditions as well as the water environment in saturated zone and non-saturated zone.
Key words
groundwater /
over-exploitation /
hydrochemical characteristics /
evolution law /
spatial analysis
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References
[1] 胡志荣,曹万金,任清潮,等. 地下水超采及其环境影响研究[J] . 水资源保护,1995,11(2):37-41.
[2] 刘 勇,李培英,丰爱平,等. 黄河三角洲地下水动态变化及其与地面沉降的关系[J] . 地球科学(中国地质大学学报),2014,58(11):1555-1565.
[3] 周万亩,齐 全,徐 敏,等. 地下水超采对农业灌溉的影响及对策研究[J] . 地下水,2007,29(4):17-19.
[4] 于 翚,刘思清. 海河流域地下水超采对洪水的影响研究[J] . 海河水利,2009,28(2):36-38.
[5] 汪亚莉,许 模,张 强,等. 云南洱海东侧引水隧道地下水环境负效应探讨[J] . 长江科学院院报,2016,33(2):14-18.
[6] 李培月. 人类活动影响下地下水环境研究——以宁夏卫宁平原为例[D] .西安:长安大学,2014.
[7] 王 喆,卢 丽,夏日元,等. 岩溶地下水系统演化的数值模拟[J] .长江科学院院报,2013,30(7):22-28.
[8] 吴 彬. 石河子市地下水系统演化规律与水环境效应研究[D] . 乌鲁木齐:新疆农业大学,2007.
[9] 张俊华,杨耀红,陈南祥. 模糊物元模型在地下水水质评价中的应用[J] . 长江科学院院报,2010,27(9):10-13.
[10] 刘建刚,郑克勋,咸云尚,等. 纪村水电站防渗墙及铺盖区地下水渗流示踪分析[J] . 长江科学院院报,2006,23(1):61-64.
[11] 张乐中,许田柱. 库计水源地地下水水化学特征分析[J] . 长江科学院院报,2013,30(2):1-5.
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