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Hydrochemical and isotopic characteristics of groundwater in the northeastern Tennger Desert, northern China

文献类型：期刊论文

作者Wang, Liheng1; Dong, Yanhui1,2; Xu, Zhifang1; Qiao, Xiaojuan3,4
刊名HYDROGEOLOGY JOURNAL
出版日期2017-12-01
卷号25期号:8页码:2363-2375
关键词Stable Isotopes Hydrochemistry Conceptual Model Arid Region China
ISSN号1431-2174
DOI10.1007/s10040-017-1620-2
文献子类Article
英文摘要Groundwater is typically the only water source in arid regions, and its circulation processes should be better understood for rational resource exploitation. Stable isotopes and major ions were investigated in the northeastern Tengger Desert, northern China, to gain insights into groundwater recharge and evolution. In the northern mountains, Quaternary unconsolidated sediments, exposed only in valleys between hills, form the main aquifer, which is mainly made of aeolian sand and gravel. Most of the mountain groundwater samples plot along the local meteoric water line (LMWL), with a more depleted signature compared to summer precipitation, suggesting that mountain groundwater was recharged by local precipitation during winter. Most of the groundwater was fresh, with total dissolved solids less than 1 g/L; dominant ions are Na+, SO42- and Cl-, and all mineral saturation indices are less than zero. Evaporation, dissolution and cation exchange are the major hydrogeochemical processes. In the southern plains, however, the main aquifers are sandstone. The linear regression line of delta D and delta O-18 of groundwater parallels the LMWL but the intercept is lower, indicating that groundwater in the plains has been recharged by ancient precipitation rather than modern. Both calcite and dolomite phases in the plains groundwater are close to saturation, while gypsum and halite can still be dissolved into the groundwater. Different recharge mechanisms occur in the northern mountains and the southern plains, and the hydraulic connection between them is weak. Because of the limited recharge, groundwater exploitation should be limited as much as possible.
WOS关键词SHULE RIVER-BASIN ; NORTHWESTERN CHINA ; ENVIRONMENTAL ISOTOPES ; CONCEPTUAL-MODEL ; RECHARGE ; EVOLUTION ; AQUIFER ; WATER ; HYDROGEOCHEMISTRY ; INDICATORS
WOS研究方向Geology ; Water Resources
语种英语
WOS记录号WOS:000415195900011
出版者SPRINGER
资助机构China Postdoctoral Science Foundation(2016 M591247) ; Beijing Natural Science Foundation(8174077) ; Youth Innovation Promotion Association Chinese Academy Sciences(2016063) ; China Postdoctoral Science Foundation(2016 M591247) ; Beijing Natural Science Foundation(8174077) ; Youth Innovation Promotion Association Chinese Academy Sciences(2016063) ; China Postdoctoral Science Foundation(2016 M591247) ; Beijing Natural Science Foundation(8174077) ; Youth Innovation Promotion Association Chinese Academy Sciences(2016063) ; China Postdoctoral Science Foundation(2016 M591247) ; Beijing Natural Science Foundation(8174077) ; Youth Innovation Promotion Association Chinese Academy Sciences(2016063)
源URL[http://ir.iggcas.ac.cn/handle/132A11/62459]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Dong, Yanhui
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, POB 9825, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Key Lab Computat Geodynam, Beijing 100049, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Liheng,Dong, Yanhui,Xu, Zhifang,et al. Hydrochemical and isotopic characteristics of groundwater in the northeastern Tennger Desert, northern China[J]. HYDROGEOLOGY JOURNAL,2017,25(8):2363-2375.
APA Wang, Liheng,Dong, Yanhui,Xu, Zhifang,&Qiao, Xiaojuan.(2017).Hydrochemical and isotopic characteristics of groundwater in the northeastern Tennger Desert, northern China.HYDROGEOLOGY JOURNAL,25(8),2363-2375.
MLA Wang, Liheng,et al."Hydrochemical and isotopic characteristics of groundwater in the northeastern Tennger Desert, northern China".HYDROGEOLOGY JOURNAL 25.8(2017):2363-2375.

入库方式： OAI收割

来源：地质与地球物理研究所

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