quality of groundwater

Application of the Fuzzy Cluster of Groundwater Quality and the Environmental Isotope to Seepage Detection of a Dike Foundation

水质模糊聚类及环境同位素在探测某堤基渗漏通道中的应用

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Groundwater quality to meet international standards of the three.

地下水水质达到国际三级标准.

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This paper summarized the experience of using brackish water for irrigation in rural area, that can not only combat drought and increase crop yields, but also regulate groundwater table level. Increasing groundwater recharge by rainwater and improve groundwater quality.

实施南水北调加大微咸水、咸水非传统水资源的利用该文总结了农村用微咸水灌溉，抗旱增产，调控地下水埋深，增大雨洪回灌，淡化地下水质的经验。

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But to the area of human activities in the most concentrated centre of the oasis, the groundwater level is not significantly decrease. At the same time, the groundwater level decreased more serious for the regional of better the quality.

在人类活动最为集中的绿洲中心地带，地下水埋深下降不显著，同时，水质越好的区域地下水埋深降低越明显。

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With the freshwater becoming less and less, how to make use of and to protect the groundwater is calling our attention, for which simulation of water fluid and water quality is essential.

随着淡水资源紧缺状况日益加重，合理利用和保护地下水资源逐渐得到社会的广泛关注，水质模拟与预测是评价和保护地下水工作中不可或缺的重要程序。

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Optimum Control of Groundwater Quantity and Quality-Application of Geometric Programming

地下水水量水质的最优控制&几何规划的应用

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Application of groundwater environment background value to the establishment of the environment quality standard

地下水环境背景值研究在制定环境质量标准中的应用

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Nitrobenzene can rapidly deteriorate the quality of groundwater.

硝基苯污染可使地下水环境质量急剧恶化.

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Regional research results were as follow: ① The antipollution capacity of the soil-groundwater system in Luanhe Delta was weak. This led that the declining quality of shallow groundwater and serious pollution.

区域研究成果如下：①研究区地下水防护性能研究与评价表明：滦河三角洲地区土壤&地下水系统防护性能较弱，导致滦河三角洲地区浅层地下水质量下降，大面积污染严重。

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In terms of groundwater quality, the number of some pollutants ( NO 2-, NH 4+, and COD) in groundwater is dozens of times and even more than one hundred times than the quality standard of Class ⅲ water, making groundwater impotable.

从水质的角度看，地下水中有的污染物（NO2-、NH4+、COD）已经超出地下水Ⅲ类水质标准数十倍甚至100多倍，到了不能饮用的程度。

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