A Discussion on Deep Groundwater Origin of Dezhou in Shandong Province Based on Water Chemical Composition and Environmental Isotopic Information
详细信息
- 责任者：Yang Lizhi (Shandong Institute of Geological Suvey ; Jinan 250013 ; China) ; Qu Wanlong
- 刊名：Acta Geoscientica Sinica
- 出版年：2013
- 卷期：34(4)
- 关键词：地下水 ; groundwater ; 水化学 ; hydrochemistry ; 山东 ; Shandong Province
- 页码：p.463-469
- 图表：4 illus., 2 tables, 22 refs.
- 分类号：1701
- issnNo：ISSN1006-3021
- isbnNo：CN11-3474/P
摘要
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 HCO 3-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.
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