| 基于水化学组分和环境同位素信息探讨山东德州深层承压地下水起源 |
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| 关键词:deep groundwater water chemical composition environmental isotope origin |
| 基金项目:国家973项目“海河流域水循环演变机理与水资源高效利用”(编号: 2006CB403401);中国地质调查局地质大调查项目“华北平原地下水污染调查评价”(编号: 1212010634603) |
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| 摘要: |
| A Discussion on Deep Groundwater Origin of Dezhou in Shandong Province Based on Water Chemical Composition and Environmental Isotopic Information |
| Aimed at solving the geo-environmental problems such as land subsidence resulting from continuous falling of water table due to over-exploitation, the authors selected the area of deep groundwater in Dezhou City as the key study area and took water chemical composition and environmental isotopic information as the study targets to discuss origin and refreshing capacity of deep groundwater. The results show that deep groundwater in Dezhou was mainly derived from precipitation in the last glacial period characterized by cold climate. During its formation, it had the characteristics of leaching and was affected by evaporation and cation exchange action. Later, it was interfered by many times of seawater invasion. It was dominated by HCO3-Na type water characterized by high fluorine, high sodium, low calcium and alkalescence, together with low concentrations of hydrogen and oxygen isotopes and low tritium content. The deep groundwater in Dezhou is recycled slowly and its refreshing capability is weak. |
| YANG Li-zhi,QU Wan-long,ZHANG Yong,LIU Chun-hua.2013.A Discussion on Deep Groundwater Origin of Dezhou in Shandong Province Based on Water Chemical Composition and Environmental Isotopic Information[J].Acta Geoscientica Sinica,34(4):463-469. |
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