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Major ion geochemistry of shallow groundwater in the Qinghai Lake catchment, NE Qinghai-Tibet Plateau
Xiao, J (Xiao, Jun)[1]; Jin, ZD (Jin, Zhangdong)[1]; Zhang, F (Zhang, Fei)[1]; Wang, J (Wang, Jin)[1]
2012-11-30
Source PublicationENVIRONMENTAL EARTH SCIENCES
Volume67Issue:5Pages:1331-1344
Subtype期刊论文
Abstract

Conventional hydrochemical techniques and statistical analyses were applied to better understand the solute geochemistry and the hydrochemical process of shallow groundwater in the Qinghai Lake catchment. Shallow groundwater in the Qinghai Lake catchment is slightly alkaline, and is characterized by a high ion concentrations and low water temperature. The total dissolved solids (TDS) in most of the samples are < 1,000 mg/L, i.e. fresh water and depend mainly on the concentration of SO4 (2-), Cl- and Na+. Groundwater table is influenced directly by the residents' groundwater consumption. Most of the groundwaters in the Qinghai Lake catchment belong to the Ca2+(Na+) -HCO3 (-) type, while the Qinghai Lake, part of the Buha (BHR) and the Lake Side (LS) samples belong to the Na+-Cl- type. The groundwater is oversaturated with respect to aragonite, calcite and dolomite, but not to magnesite and gypsum. Solutes are mainly derived from strong evaporite dissolution in Daotang, BHR and LS samples and from strong carbonate weathering in Hargai and Shaliu samples. Carbonate weathering is stronger than evaporite dissolution with weak silicate weathering in the Qinghai Lake catchment. Carbonate weathering, ion exchange reaction and precipitation are the major hydrogeochemical processes responsible for the solutes in the groundwater in the Qinghai Lake catchment. Most of the shallow groundwaters are suitable for drinking. More attention should be paid to the potential pollution of nitrate, chloride and sulfide in shallow groundwater in the future.

KeywordGroundwater Major Ion Geochemistry Hydrochemical Process Qinghai Lake
DOI10.1007/s12665-012-1576-4
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10124
Collection加速器质谱中心
Corresponding AuthorJin, ZD (Jin, Zhangdong)[1]
AffiliationState Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment, Chinese Academy of Sciences,Xi’an 710075, China
Recommended Citation
GB/T 7714
Xiao, J ,Jin, ZD ,Zhang, F ,et al. Major ion geochemistry of shallow groundwater in the Qinghai Lake catchment, NE Qinghai-Tibet Plateau[J]. ENVIRONMENTAL EARTH SCIENCES,2012,67(5):1331-1344.
APA Xiao, J ,Jin, ZD ,Zhang, F ,&Wang, J .(2012).Major ion geochemistry of shallow groundwater in the Qinghai Lake catchment, NE Qinghai-Tibet Plateau.ENVIRONMENTAL EARTH SCIENCES,67(5),1331-1344.
MLA Xiao, J ,et al."Major ion geochemistry of shallow groundwater in the Qinghai Lake catchment, NE Qinghai-Tibet Plateau".ENVIRONMENTAL EARTH SCIENCES 67.5(2012):1331-1344.
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