Lithium and its isotopes as tracers of groundwater salinization: A study in the southern coastal plain of Laizhou Bay, China
文献类型：期刊论文
| 作者 | Qi, Huihui1; Ma, Chuanming1; He, Zekang1,2,3; Hu, Xiaojing1; Gao, Lin1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2019-02-10 |
| 卷号 | 650页码:878-890 |
| 关键词 | Southern coastal plain of Laizhou Bay Groundwater salinization Hydrochemistry Lithium isotope Brine and seawater intrusion |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2018.09.122 |
| 通讯作者 | Ma, Chuanming(machuanming@cug.edu.cn) |
| 英文摘要 | In the southern coastal plain of Laizhou Bay, due to intensive exploitation of groundwater since the early 1970s, the shallow aquifer has been severely influenced by saltwater intrusion, which causes the extraction to shift from shallow to deeper aquifer changing the hydrogeological condition greatly. This study was conducted to investigate the groundwater salinization using hydrochemistry and H, O and Li isotope data. Dissolved Li shows a linear correlation with Cl and Br in seawater, brine and saline groundwater indicating the marine Li source, whereas the enrichment of Li in surface water, brackish and fresh groundwater is impacted by dissolution of silicate minerals. The analyses of hydrochemistry and isotopes (H, O and Li) indicate that brine originated from seawater evaporation, followed by mixing processes and some water-rock interactions; shallow saline groundwater originated from brine diluted with seawater and fresh groundwater; deep saline groundwater originated from seawater intrusion. The negative correlation of delta(7) Li and Li/Na in surface water, brackish and fresh groundwater is contrary to the general conclusion, indicating the slow weathering of silicate minerals and hydraulic interaction between surface water and shallow groundwater in this area. The analyses of hydrochemistry and isotopes (Li, H and O) can well identify the salinity sources and isotope fractionation in groundwater flow and mixing, especially groundwater with high TDS. As both mixing with saltwater and isotope fractionation can explain the combination of high delta(7) Li and low TDS in brackish groundwater, isotope fractionation may limit their use in recognizing salinity sources of groundwater with low TDS. (C) 2018 Elsevier B.V. All rights reserved. |
| WOS关键词 | CANADIAN SHIELD BRINES ; WEATHERING PROCESSES ; SEAWATER CHEMISTRY ; WATER-INTRUSION ; STABLE-ISOTOPES ; VOLCANIC-ROCKS ; BORON ISOTOPES ; ORGANIC-ACIDS ; MURRAY BASIN ; LI ISOTOPES |
| 资助项目 | National Natural Science Foundation of China[41572212] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000447092700091 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/52815]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Ma, Chuanming |
| 作者单位 | 1.China Univ Geosci, Sch Environm Studies, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qi, Huihui,Ma, Chuanming,He, Zekang,et al. Lithium and its isotopes as tracers of groundwater salinization: A study in the southern coastal plain of Laizhou Bay, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,650:878-890. |
| APA | Qi, Huihui,Ma, Chuanming,He, Zekang,Hu, Xiaojing,&Gao, Lin.(2019).Lithium and its isotopes as tracers of groundwater salinization: A study in the southern coastal plain of Laizhou Bay, China.SCIENCE OF THE TOTAL ENVIRONMENT,650,878-890. |
| MLA | Qi, Huihui,et al."Lithium and its isotopes as tracers of groundwater salinization: A study in the southern coastal plain of Laizhou Bay, China".SCIENCE OF THE TOTAL ENVIRONMENT 650(2019):878-890. |
入库方式： OAI收割
来源：地理科学与资源研究所
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