| 北京平原区永定河地下水系统地下水化学和同位素特征 |
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| 关键词:groundwater system hydrogeochemistry aqueous chemistry isotope strontium |
| 基金项目:北京市重大科技项目(编号: D07050601510000) |
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| 摘要: |
| Chemical and Isotopic Characteristics of Groundwater in the Yongding River Groundwater System of Beijing Plain |
| The Yongding River groundwater system in Beijing plain is located in western Beijing. Precipitation samples of a hydrological year in Beijing plain were collected, and D and 18O components of these samples were analyzed. A set of groundwater samples in the Yongding River groundwater system were also collected during the arid season, and components of eight ions, D and 18O, concentrations of Sr, and ratios of 87Sr/86Sr of these samples were analyzed. On such a basis, some conclusions have been reached: the hydrochemical types of groundwater in the study area are comparatively simple; the groundwater in the study area is derived mainly from infiltration of local precipitation, and is affected by different degrees of evaporation during the process; Sr and Ca elements in groundwater share a similar hydrogeochemical process; values and variation range of 87Sr/86Sr ratios are small, which implies that Sr element in groundwater comes from carbonate rock. The results obtained by the authors will provide a practical basis for further understanding the groundwater system of the study area and the water sources. |
| ZHAI Yuan-zheng,WANG Jin-sheng,TENG Yan-guo,ZUO Rui.2011.Chemical and Isotopic Characteristics of Groundwater in the Yongding River Groundwater System of Beijing Plain[J].Acta Geoscientica Sinica,32(1):101-106. |
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