干旱区生态环境知识资源中心(Arid): Multiple factors control groundwater chemistry and quality of multi-layer groundwater system in Northwest China coalfield-Using self-organizing maps (SOM)

Arid

DOI	10.1016/j.gexplo.2021.106795
	Multiple factors control groundwater chemistry and quality of multi-layer groundwater system in Northwest China coalfield-Using self-organizing maps (SOM)
	Qu, Shen; Shi, Zheming; Liang, Xiangyang; Wang, Guangcai; Han, Jiaqian
通讯作者	Shi, ZM (corresponding author), China Univ Geosci, MOE Key Lab Groundwater Circulat & Environm Evolu, Beijing 100083, Peoples R China.
来源期刊	JOURNAL OF GEOCHEMICAL EXPLORATION
ISSN	0375-6742
EISSN	1879-1689
出版年	2021
卷号	227
英文摘要	Yuheng Coalfield is a typical Jurassic coal mine with a multi-layer groundwater system but it is exposed to an arid and semi-arid climate with scarce water resources. Thus, the ecological environment is extremely vulnerable, and the groundwater chemistry and quality may be influenced by multiple factors. In this study, the selforganizing map calculations in combination with traditional multivariate statistical methods were used to investigate groundwater chemistry and quality. Thirty-nine groundwater samples collected from different aquifers were divided into four clusters. Cluster I (shallow water consisting of surface water, Quaternary and Luohe group groundwater) was dominated by Ca-HCO3 and Ca-Na +K-HCO3 types, Cluster II (mainly Zhiluo group groundwater) consisted of Ca-Na + K-SO4 and Na +K-Ca-SO4 types, Cluster III (deep water consisting of Zhiluo and Yan'an group groundwater and mine water) was of the Na +K-Ca-SO4 type, while Cluster IV (mine water) was the Na + K-SO4 type. The dominant water-rock interactions controlling groundwater chemistry and quality were cation exchange and dissolution/precipitation of carbonate, gypsum and halite. Based on the pumping test results, the good hydrological properties and hydraulic connection between aquifers also affected groundwater chemistry and quality. The findings of this study will help inform the sustainable development and protection of groundwater resources in the study area and other coalfields.
英文关键词	Groundwater chemistry and quality Self-organizing map (SOM) Multi-layer aquifer system Coalfield
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000663433000004
WOS关键词	COAL-MINE ; HYDROCHEMICAL CHARACTERISTICS ; HYDROGEOCHEMICAL EVOLUTION ; GEOCHEMICAL EVOLUTION ; ORDOS BASIN ; AQUIFER ; WATER ; IDENTIFICATION ; AREA ; POLLUTION
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368596
作者单位	[Qu, Shen; Shi, Zheming; Wang, Guangcai; Han, Jiaqian] China Univ Geosci, MOE Key Lab Groundwater Circulat & Environm Evolu, Beijing 100083, Peoples R China; [Liang, Xiangyang] China Coal Technol & Engn Grp Corp, Xian Res Inst, Xian, Peoples R China
推荐引用方式 GB/T 7714	Qu, Shen,Shi, Zheming,Liang, Xiangyang,et al. Multiple factors control groundwater chemistry and quality of multi-layer groundwater system in Northwest China coalfield-Using self-organizing maps (SOM)[J],2021,227.
APA	Qu, Shen,Shi, Zheming,Liang, Xiangyang,Wang, Guangcai,&Han, Jiaqian.(2021).Multiple factors control groundwater chemistry and quality of multi-layer groundwater system in Northwest China coalfield-Using self-organizing maps (SOM).JOURNAL OF GEOCHEMICAL EXPLORATION,227.
MLA	Qu, Shen,et al."Multiple factors control groundwater chemistry and quality of multi-layer groundwater system in Northwest China coalfield-Using self-organizing maps (SOM)".JOURNAL OF GEOCHEMICAL EXPLORATION 227(2021).