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Hydrochemical characteristics and salinization processes of groundwater in the shallow aquifer of Eastern Laizhou Bay, China
Wen, Xiaohu; Diao, Meina; Wang, De; Gao, Meng
2012-07-15
Source PublicationHYDROLOGICAL PROCESSES
ISSN1099-1085
Volume26Issue:15Pages:2322-2332
Contribution Rank[Wen, Xiaohu] Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
AbstractGroundwater salinization has become a crucial environmental problem worldwide and is considered the most widespread form of groundwater contamination in the coastal zone. In this study, a hydrochemical investigation was conducted in the eastern coastal shallow aquifer of Laizhou Bay to identify the hydrochemical characteristics and the salinity of groundwater using ionic ratios, deficit or excess of each ions, saturation indices and factor analysis. The results indicate that groundwater in the study area showed wide ranges and high standard deviations for most of hydrochemical parameters and can be classified into two hydrochemical facies, Ca2+-Mg2+-Cl- facies and Na+-Cl- facies. The ionic ratio, deficit or excess of each ions and SI were applied to evaluate hydrochemical processes. The results obtained indicate that the salinization processes in the coastal zones were inverse cation exchange, dissolution of calcite and dolomite, and intensive agricultural practices. Factor analysis shows that three factors were determined (Factor 1: TDS, EC, Cl-, Mg2+, Na+, K+, Ca2+ and SO42-; Factor 2: HCO3- and pH; Factor 3: NO3- and pH), representing the signature of seawater intrusion in the coastal zone, weathering of water-soil/rock interaction, and nitrate contamination, respectively. Copyright (c) 2011 John Wiley & Sons, Ltd.; Groundwater salinization has become a crucial environmental problem worldwide and is considered the most widespread form of groundwater contamination in the coastal zone. In this study, a hydrochemical investigation was conducted in the eastern coastal shallow aquifer of Laizhou Bay to identify the hydrochemical characteristics and the salinity of groundwater using ionic ratios, deficit or excess of each ions, saturation indices and factor analysis. The results indicate that groundwater in the study area showed wide ranges and high standard deviations for most of hydrochemical parameters and can be classified into two hydrochemical facies, Ca2+-Mg2+-Cl- facies and Na+-Cl- facies. The ionic ratio, deficit or excess of each ions and SI were applied to evaluate hydrochemical processes. The results obtained indicate that the salinization processes in the coastal zones were inverse cation exchange, dissolution of calcite and dolomite, and intensive agricultural practices. Factor analysis shows that three factors were determined (Factor 1: TDS, EC, Cl-, Mg2+, Na+, K+, Ca2+ and SO42-; Factor 2: HCO3- and pH; Factor 3: NO3- and pH), representing the signature of seawater intrusion in the coastal zone, weathering of water-soil/rock interaction, and nitrate contamination, respectively. Copyright (c) 2011 John Wiley & Sons, Ltd.
Corresponding AuthorWen, XH (reprint author), Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Chinese Acad Sci Chunhui Rd 17, Yantai 264003, Shandong, Peoples R China.
KeywordHydrochemical Characteristics Groundwater Salinization Ionic Ration Factor Analysis Shallow Coastal Aquifer Laizhou Bay
Department海岸带信息集成与综合管理实验室
Subject AreaWater Resources
Funding OrganizationCAS [KZCX2-YW-224-04]; National Natural Science Foundation of China [41001013]
URL查看原文
Indexed BySCI
WOS KeywordSEA-WATER INTRUSION ; COASTAL AQUIFER ; SEAWATER INTRUSION ; SOUTH-KOREA ; ISOTOPIC EVIDENCE ; SALINE WATER ; QUALITY ; AREA ; IDENTIFY ; ISLAND
SubtypeArticle
Language英语
Funding ProjectWen, Xiaohu; Diao, Meina; Wang, De; Gao, Meng
WOS Research AreaWater Resources
WOS IDWOS:000306477100010
Citation statistics
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/6162
Collection海岸带信息集成与战略规划研究中心
AffiliationChinese Acad Sci, Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
First Author AffilicationYantai Institute of Coastal Zone Research, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wen, Xiaohu,Diao, Meina,Wang, De,et al. Hydrochemical characteristics and salinization processes of groundwater in the shallow aquifer of Eastern Laizhou Bay, China[J]. HYDROLOGICAL PROCESSES,2012,26(15):2322-2332.
APA Wen, Xiaohu,Diao, Meina,Wang, De,&Gao, Meng.(2012).Hydrochemical characteristics and salinization processes of groundwater in the shallow aquifer of Eastern Laizhou Bay, China.HYDROLOGICAL PROCESSES,26(15),2322-2332.
MLA Wen, Xiaohu,et al."Hydrochemical characteristics and salinization processes of groundwater in the shallow aquifer of Eastern Laizhou Bay, China".HYDROLOGICAL PROCESSES 26.15(2012):2322-2332.
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