干旱区生态环境知识资源中心(Arid): Hydrogeochemical Characterization and Its Seasonal Changes of Groundwater Based on Self-Organizing Maps

Arid

DOI	10.3390/w13213065
	Hydrogeochemical Characterization and Its Seasonal Changes of Groundwater Based on Self-Organizing Maps
	Wu, Chu; Wu, Xiong; Lu, Chuiyu; Sun, Qingyan; He, Xin; Yan, Lingjia; Qin, Tao
通讯作者	Wu, C (corresponding author), China Inst Water Resources & Hydropower Res, State Key Lab Water Cycle Simulat & Regulat, Beijing 100038, Peoples R China.
来源期刊	WATER
EISSN	2073-4441
出版年	2021
卷号	13 期号:21
英文摘要	Water resources are scarce in arid or semiarid areas; groundwater is an important water source to maintain residents' lives and the social economy; and identifying the hydrogeochemical characteristics of groundwater and its seasonal changes is a prerequisite for sustainable use and protection of groundwater. This study takes the Hongjiannao Basin as an example, and the Piper diagram, the Gibbs diagram, the Gaillardet diagram, the Chlor-alkali index, the saturation index, and the ion ratio were used to analyze the hydrogeochemical characteristics of groundwater. Meanwhile, based on self-organizing maps (SOM), quantification error (QE), topological error (TE), and the K-means algorithm, groundwater chemical data analysis was carried out to explore its seasonal variability. The results show that (1) the formation of groundwater chemistry in the study area was controlled by water-rock interactions and cation exchange, and the hydrochemical facies were HCO3-Ca type, HCO3-Na type, and Cl-Na type. (2) Groundwater chemical composition was mainly controlled by silicate weathering and carbonate dissolution, and the dissolution of halite, gypsum, and fluorite dominated the contribution of ions, while most dolomite and calcite were in a precipitated state or were reactive minerals. (3) All groundwater samples in wet and dry seasons were divided into five clusters, and the hydrochemical facies of clusters 1, 2, and 3 were HCO3-Ca type; cluster 4 was HCO3-Na type; and cluster 5 was Cl-Na type. (4) Thirty samples changed in the same clusters, and the groundwater chemistry characteristics of nine samples showed obvious seasonal variability, while the seasonal changes of groundwater hydrogeochemical characteristics were not significant.
英文关键词	self-organizing map hydrogeochemistry seasonal variation cluster analysis Hongjiannao
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000719208300001
WOS关键词	QUALITY ASSESSMENT ; WATER-QUALITY ; RIVER
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368200
作者单位	[Wu, Chu; Lu, Chuiyu; Sun, Qingyan; He, Xin; Yan, Lingjia; Qin, Tao] China Inst Water Resources & Hydropower Res, State Key Lab Water Cycle Simulat & Regulat, Beijing 100038, Peoples R China; [Wu, Xiong] China Univ Geosci, Sch Water Resources & Environm, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Wu, Chu,Wu, Xiong,Lu, Chuiyu,et al. Hydrogeochemical Characterization and Its Seasonal Changes of Groundwater Based on Self-Organizing Maps[J],2021,13(21).
APA	Wu, Chu.,Wu, Xiong.,Lu, Chuiyu.,Sun, Qingyan.,He, Xin.,...&Qin, Tao.(2021).Hydrogeochemical Characterization and Its Seasonal Changes of Groundwater Based on Self-Organizing Maps.WATER,13(21).
MLA	Wu, Chu,et al."Hydrogeochemical Characterization and Its Seasonal Changes of Groundwater Based on Self-Organizing Maps".WATER 13.21(2021).