Hydrogeochemical Processes Affecting Groundwater Chemistry in the Central Part of the Guanzhong Basin, China
- PDF / 5,189,910 Bytes
- 18 Pages / 595.276 x 790.866 pts Page_size
- 30 Downloads / 210 Views
Hydrogeochemical Processes Affecting Groundwater Chemistry in the Central Part of the Guanzhong Basin, China Xiaofei Ren1,2 · Peiyue Li1,2 · Xiaodong He1,2 · Fengmei Su1,2 · Vetrimurugan Elumalai3 Received: 18 June 2020 / Accepted: 8 October 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Groundwater is essential for the sustainable development of the Guanzhong Basin, China, and its quality is mainly controlled by hydrogeochemical processes and anthropogenic pollution. This study used statistical and multivariate statistical analysis approaches to recognize the hydrogeochemical processes and affecting factors of groundwater in the central part of the Guanzhong Basin. Correlations among 14 hydrochemical parameters were statistically examined. Principal component analysis (PCA), factor analysis (FA), and hierarchical cluster analysis (HCA) techniques were applied to analyze the physicochemical variables to understand the affecting factors of groundwater quality in the study area. The correlation analysis results indicate that cation exchange is the dominant process affecting the concentration of Na+ and Ca2+ in the groundwater. Both the PCA and FA indicate that minerals dissolution/precipitation and human activities are the key factors that affect groundwater quality. All parameters except C O32− and pH increase from C1 to C4 obtained through the Q mode HCA. C4 has a hydrochemical type of SO4–Na·K, indicating that the sample of this cluster is primarily influenced by anthropogenic processes. Groundwater resources have become an important resource for human survival, industrial development, and ecosystems (IAH 2015), especially in arid and semiarid regions. The high evaporation rate and limited precipitation in arid and semiarid regions make groundwater a valuable commodity in these regions (Li et al. 2015a). However, due to industrial and agricultural activities and unreasonable utilization of groundwater, some critical water sources have been seriously polluted with contaminants, such as fluoride, nitrate, arsenic, heavy metals, and synthetic organic compounds contaminants (Li et al. 2019a; Postigo and Barcelo 2015; Rodriguez-Lado et al. 2013; Soujanya et al. 2020). The inorganic cations and anions in groundwater could come from both natural and anthropogenic sources. Fendorf et al. (2010) showed that human activities can affect the release of * Peiyue Li [email protected]; [email protected] 1
School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, Shaanxi, China
2
Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, Shaanxi, China
3
Department of Hydrology, University of Zululand, Kwa Dlangezwa, Durban 3886, South Africa
arsenic to groundwater, influencing the natural distribution of arsenic. Currently, groundwater quality deterioration has become a global problem impeding sustainable development (Li et al. 2017) and affe
Data Loading...
