Groundwater Recharge Environments and Hydrogeochemical Evolution in Beijing, China: Multi-Tracer Approach

Ji Lai Liu; Tian Ming Huang; Jie Li

doi:10.4028/www.scientific.net/AMR.518-523.3647

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Groundwater Recharge Environments and Hydrogeochemical Evolution in Beijing, China: Multi-Tracer Approach
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 518-523Groundwater Recharge Environments and...

Groundwater Recharge Environments and Hydrogeochemical Evolution in Beijing, China: Multi-Tracer Approach

Abstract:

The groundwater recharge environments and hydrogeochemical characteristics in Beijing were investigated using a combination of chemical indicators, stable isotopes, and radiocarbon dating. There are two distinct zones for those groundwaters: modern water (1000 a) are depleted, which implies that the palaeowaters were recharged in relatively cold climate. The TDS for all groundwater samples range from 312 to 914 mg/L. Groundwaters are supersaturated with respect to calcite and the δ13C value is stable (around -13‰), which suggests dissolution of calcite is limited. Dissolution of halite, sulfate and carbonate and exchange of cations are main processes of water chemistry. The results have important implications for groundwater management in Beijing, where a certain proportion of the unrenewable water has been mined.

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Periodical:

Advanced Materials Research (Volumes 518-523)

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3647-3651

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.518-523.3647

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Online since:

May 2012

Authors:

Ji Lai Liu, Tian Ming Huang, Jie Li

Keywords:

Groundwater Recharge, Palaeowater, Radiocarbon Age, Stable Isotope, V&P Model

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