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Article

Spatial Assessment of Hydrochemical Characteristics and Evolution of Inferior Quality Water in Kashi Delta

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Powerchina Northwest Engineering Corporation Limited, Xi’an 710100, China
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No. 801 Hydrogeology and Engineering Geology Brigade of Shandong Exploration Bureau of Geology and Mineral Resources, Ji’nan 250014, China
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Author to whom correspondence should be addressed.
Academic Editor: Pingping Luo
Water 2021, 13(24), 3557; https://doi.org/10.3390/w13243557
Received: 25 October 2021 / Revised: 2 December 2021 / Accepted: 8 December 2021 / Published: 12 December 2021
(This article belongs to the Special Issue Research Progress on Watershed Ecohydrological Processes)
Hydrochemistry is a critical indicator of water quality. We analysed 146 hydrochemical parameters of groundwater and the hydrogeological background of the Kashi region in China, examined their spatial distributions, and elucidated the mechanisms of their occurrence. We used graphical and multivariate statistical methods to distinguish between high- and poor-quality water. In the Kizil-Cakmak River Basin of the northern Kashi region, the primary cations were Ca2+ and Mg2+, and the primary anion was SO42−; their concentrations were four times higher than the Class III water quality standard. Additionally, the salinity was high. In contrast, in the upstream and midstream parts of the Gez-Kushan River Basin in the southern Kashi region, the primary ions were HCO3− and SO42−, and the salinity was low. Downstream of the Gez-Kushan River Basin, the primary ion was Cl, and the salinity was low. There was a wide-ranging spatial variability in the SO42−, Cl, and Ca2+ contents throughout the study area. The present findings can be applied to locate suitable domestic, agricultural, and industrial water sources in the Kashi region and can provide theoretical guidance for the scientific development and management of groundwater in this region. View Full-Text
Keywords: groundwater; hydrogeochemistry; Kashi region; multivariate statistical analysis; regularities of distribution groundwater; hydrogeochemistry; Kashi region; multivariate statistical analysis; regularities of distribution
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MDPI and ACS Style

Qu, P.; Su, S.; Jiao, J.; Hu, X.; Zhao, C.; Fang, X.; Yan, G. Spatial Assessment of Hydrochemical Characteristics and Evolution of Inferior Quality Water in Kashi Delta. Water 2021, 13, 3557. https://doi.org/10.3390/w13243557

AMA Style

Qu P, Su S, Jiao J, Hu X, Zhao C, Fang X, Yan G. Spatial Assessment of Hydrochemical Characteristics and Evolution of Inferior Quality Water in Kashi Delta. Water. 2021; 13(24):3557. https://doi.org/10.3390/w13243557

Chicago/Turabian Style

Qu, Pengfei, Shengwei Su, Jian Jiao, Xiangyang Hu, Cheng Zhao, Xiao Fang, and Gengsheng Yan. 2021. "Spatial Assessment of Hydrochemical Characteristics and Evolution of Inferior Quality Water in Kashi Delta" Water 13, no. 24: 3557. https://doi.org/10.3390/w13243557

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