中国科学院机构知识库网格系统: Recharge source and hydrogeochemical evolution of shallow groundwater in a complex alluvial fan system, southwest of North China Plain

中国科学院机构知识库网格

Chinese Academy of Sciences Institutional Repositories Grid

Recharge source and hydrogeochemical evolution of shallow groundwater in a complex alluvial fan system, southwest of North China Plain

文献类型：EI期刊论文


作者	Yu Jingjie; Li Fadong
发表日期	2008
关键词	Calcium Chlorine compounds Deuterium Fans Groundwater Groundwater resources Hydrogeology Isotopes Nonmetals Oxygen Underground reservoirs Water analysis
英文摘要	Many cities around the world are developed at alluvial fans. With economic and industrial development and increase in population, quality and quantity of groundwater are often damaged by over-exploitation in these areas. In order to realistically assess these groundwater resources and their sustainability, it is vital to understand the recharge sources and hydrogeochemical evolution of groundwater in alluvial fans. In March 2006, groundwater and surface water were sampled for major element analysis and stable isotope (oxygen-18 and deuterium) compositions in Xinxiang, which is located at a complex alluvial fan system composed of a mountainous area, Taihang Mt. alluvial fan and Yellow River alluvial fan. In the Taihang mountainous area, the groundwater was recharged by precipitation and was characterized by Ca-HCO3 type water with depleted δ¹⁸O and δD (mean value of -8.8‰ δ¹⁸O). Along the flow path from the mountainous area to Taihang Mt. alluvial fan, the groundwater became geochemically complex (Ca-Na-Mg-HCO3-Cl-SO4 type), and heavier δ¹⁸O and δD were observed (around -8‰ δ¹⁸O). Before the surface water with mean δ¹⁸O of -8.7‰ recharged to groundwater, it underwent isotopic enrichment in Taihang Mt. alluvial fan. Chemical mixture and ion exchange are expected to be responsible for the chemical evolution of groundwater in Yellow River alluvial fan. Transferred water from the Yellow River is the main source of the groundwater in the Yellow River alluvial fan in the south of the study area, and stable isotopic compositions of the groundwater (mean value of -8.8‰ δ¹⁸O) were similar to those of transferred water (-8.9‰), increasing from the southern boundary of the study area to the distal end of the fan. The groundwater underwent chemical evolution from Ca-HCO3, Na-HCO3, to Na-SO4. A conceptual model, integrating stiff diagrams, is used to describe the spatial variation of recharge sources, chemical evolution, and groundwater flow paths in the complex alluvial fan aquifer system. © 2007 Springer-Verlag.
出处	Environmental Geology
卷	55 期:5 页:1109-1122
收录类别	EI
语种	英语
源URL	[http://ir.igsnrr.ac.cn/handle/311030/24831]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Yu Jingjie,Li Fadong. Recharge source and hydrogeochemical evolution of shallow groundwater in a complex alluvial fan system, southwest of North China Plain. 2008.

入库方式： OAI收割

来源：地理科学与资源研究所

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