Natural and human-induced factors controlling the phreatic groundwater geochemistry of the Longgang River basin, South China

Li, Wei1,2,3; Chen, Xiaohong1; Xie, Linshen2; Cheng, Gong2; Liu, Zhao4; Yi, Shuping5

2020-01

10.1515/geo-2020-0039

Open Geosciences   影响因子和分区

2391-5447

Groundwater chemical evolution is the key to ensuring the sustainability of local society and economy development. In this study, four river sections and 59 groundwater wells are investigated in the Longgang River (L.R.) basin in South China. Comprehensive hydrochemical analysis methods are adopted to determine the dominant factors controlling the chemical evolution of the local phreatic groundwater and the potential impact of human activities on groundwater quality. The results indicate that the ionic composition of the local phreatic groundwater is dominated by Ca2+ (0.9-144.0 mg/L), HCO3- (4.4-280.0 mg/L), and SO42- (1.0-199.0 mg/L). Ca-Mg-HCO3, Ca-Na-HCO3, and Na-Ca-HCO3 are the major groundwater hydrochemical facies. Water-rock interactions, such as the dissolution of calcite and dolomite, are the primary source of the major ions in the local groundwater. Cation-exchange reaction has its effects on the contents of Ca2+, Mg2+, and Na+. Ammonia concentration of the sampling sections in the L.R. increases from 0.03 to 2.01 mg/L along the flow direction. Groundwater nitrate in the regions of the farmland is attributed to the lowest level of the groundwater quality standards of China, while the same test results are obtained for heavy metals in the industrial park and landfill, suggesting a negative impact of the anthropogenic activities on the local phreatic groundwater quality.

groundwater geochemistry anthropogenic activities pollution conceptual model

SCI ; EI

英语

其他

Major Science and Technology Program for Water Pollution Control and Treatment of China[2015ZX07206-006] ; National Natural Science Foundation of China (NSFC)[41702276] ; Shenzhen Basic Research Plan[JCYJ20160429191638556]

Geology

Geosciences, Multidisciplinary

WOS:000551519800001

DE GRUYTER POLAND SP Z O O

20203209014899

Calcite ; Groundwater geochemistry ; Water quality ; Ammonia ; Quality control ; Rivers ; Chemical analysis ; Groundwater pollution ; Heavy metals ; Hydrochemistry ; River pollution ; Sodium compounds

Groundwater:444.2 ; Water Analysis:445.2 ; Water Pollution:453 ; Water Pollution Sources:453.1 ; Geochemistry:481.2 ; Minerals:482.2 ; Metallurgy and Metallography:531 ; Inorganic Compounds:804.2 ; Quality Assurance and Control:913.3

Web of Science

1.Sun Yat Sen Univ, Sch Civil Engn, Zhuhai 519082, Peoples R China
2.Shenzhen Acad Environm Sci, Shenzhen 518001, Peoples R China
3.China Univ Geosci Beijing, MOE Key Lab Groundwater Circulat & Environm Evolu, Beijing 100083, Peoples R China
4.China Aerosp Sci & Technol Corp Ltd SST, Informat Engn Dept, China Aerosp Sci & Technol Corp, Beijing 100095, Peoples R China
5.South Univ Sci & Technol, Shenzhen 518005, Peoples R China

Li, Wei,Chen, Xiaohong,Xie, Linshen,et al. Natural and human-induced factors controlling the phreatic groundwater geochemistry of the Longgang River basin, South China[J]. Open Geosciences,2020,12(1):203-219.

Li, Wei,Chen, Xiaohong,Xie, Linshen,Cheng, Gong,Liu, Zhao,&Yi, Shuping.(2020).Natural and human-induced factors controlling the phreatic groundwater geochemistry of the Longgang River basin, South China.Open Geosciences,12(1),203-219.

Li, Wei,et al."Natural and human-induced factors controlling the phreatic groundwater geochemistry of the Longgang River basin, South China".Open Geosciences 12.1(2020):203-219.