Assessing major factors impacts on the hydrogeochemistry in a riverside alluvial aquifer, northeast China

Wang，Li1; Du，Tao2,3; Hu，Qing4; Lin，Sijie4; Liu，Mingzhu1; Chen，Honghan1

2020-10-01

10.1007/s12517-020-06058-3

ARAB J GEOSCI   影响因子和分区

1866-7511

1866-7538

The 18 main physicochemical parameters were analyzed in 8 surface water samples and 67 groundwater samples from a typical riverside alluvial aquifer (RAA), which is the main water source in northeast China and is mainly characterized by nitrogen pollution. By integrating hydrochemical methods and multivariate statistical methods (hierarchical cluster analysis (HCA), principal component analysis (PCA), and factor analysis (FA)), the hydrogeochemistry of this RAA was investigated in the present study to reveal the spatial characteristics of groundwater chemistry and estimate the major controlling factors and their contribution to the spatial variations of groundwater chemistry. The results indicated that the groundwater chemistry had high spatial variability in the study area and was characterized by exceeding concentrations of nitrogen, Fe, and Mn. According to the dominant chemical composition, the HCA classified these samples into four chemically distinct groups (groups 1–4). The groundwater quality deteriorated from group 1 to group 4, which was induced by anthropogenic pollution (agricultural activities and polluted river water) and diverse hydrogeochemical processes. PCA and FA were used to evaluate and verify the contribution of these processes to groundwater chemistry. Four factors that explained 76.52% of the total variance of these distinct groups were identified: (1) Cl and/or SO salt input, mineral dissolution, and industrial and domestic sewage discharges; (2) nitrate generation processes; (3) the original geological environment based on water-rock interaction; (4) ammonia input from industrial and domestic sewage, and agricultural fertilizers. The results of the present study provide a valuable scientific basis for better understanding the characteristics of groundwater hydrochemical and hydrogeochemical processes, and it can be considered as a reference that contributes to the management of RAAs and relevant policy-making for similar regions.

Alluvial aquifer Anthropogenic pollution Groundwater chemistry Nitrate generation processes rock interactions Water

SCI

英语

非南科大

Major Science and Technology Program for Water Pollution Control and Treatment[2018ZX07109][2009ZX07424-002]

Geology

Geosciences, Multidisciplinary

WOS:000578563700003

SPRINGER HEIDELBERG

2-s2.0-85092403692

Scopus

1.Beijing Key Laboratory of Water Resources & Environmental Engineering,China University of Geosciences (Beijing),Beijing,100083,China
2.Key Laboratory of Ecosystem Network Observation and Modeling,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing,100101,China
3.University of Chinese Academy of Sciences,Beijing,100049,China
4.School of Environmental Science & Engineering,Southern University of Science & Technology,Shenzhen,518055,China

Wang，Li,Du，Tao,Hu，Qing,et al. Assessing major factors impacts on the hydrogeochemistry in a riverside alluvial aquifer, northeast China[J]. ARAB J GEOSCI,2020,13(20).

Wang，Li,Du，Tao,Hu，Qing,Lin，Sijie,Liu，Mingzhu,&Chen，Honghan.(2020).Assessing major factors impacts on the hydrogeochemistry in a riverside alluvial aquifer, northeast China.ARAB J GEOSCI,13(20).

Wang，Li,et al."Assessing major factors impacts on the hydrogeochemistry in a riverside alluvial aquifer, northeast China".ARAB J GEOSCI 13.20(2020).