干旱区生态环境知识资源中心(Arid): Hydrochemistry characteristics of groundwater with the influence of spatial variability and water flow in Hetao Irrigation District, China

Arid

DOI	10.1007/s11356-022-20685-1
	Hydrochemistry characteristics of groundwater with the influence of spatial variability and water flow in Hetao Irrigation District, China
	Yuan, Hongying; Yang, Shuqing; Wang, Bo
通讯作者	Yang, SQ
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
EISSN	1614-7499
出版年	2022
卷号	29 期号:47 页码:71150-71164
英文摘要	Groundwater is an important resource of water in arid and semi-arid agricultural regions. Thus, identification of hydrogeochemical characters and the influence of geospatial variability and flow pooling are of significance on groundwater resources management and making irrigation decisions in salinized areas. The study specifically focused on the Hetao Irrigation District located in the semi-arid region of northern China. A total of 85 groundwater samples (42 from the upstream Shenwu Irrigation Area (SWIA), 43 from the downstream Wulate Irrigation Area (WLTIA)) were collected, and 15 water quality indexes were analyzed. Methods including mathematical statistics, Piper diagram, Gibbs model, forward succession model, and ionic rations were used to analyze the hydrochemical characteristics and evolution mechanisms, RSBC, PS, SAR, WQI were selected to evaluate water quality and irrigation suitability from the perspective of salt and alkali damage. Results showed that the groundwater of the study area is weakly alkaline, SWIA is mainly fresh water (47.62%), WLTIA is mainly brackish water (65.12%), and the hydrochemistry of the groundwater consists of Cl-Na type and Cl center dot SO-Ca center dot Mg. The solute content of downstream (WLTIA) is higher than that of upstream (SWIA), Na+ and Cl- have obvious advantages in WLTIA, and they are the main contribution indicators of groundwater TDS in the study area. The groundwater is subjected to the ongoing influence of rock weathering, ions exchange, and evaporate crystallization Na+ mainly originates from the dissolution of evaporate salt rock and silicate rock, and Ca2+ from the dissolution of gypsum and carbonate. The order of contribution of different rocks is evaporation rock > silicate rock > carbonate rock. Based on the classifications of sodium absorption ratio (SAR), residual sodium bicarbonate (RSBC), and potential salinity (PS), most of the groundwater samples are unsuitable for irrigating, and the groundwater quality of the SWIA is better than that of the WLTIA.
英文关键词	Groundwater resources Hydrochemical characteristics Control mechanisms Water quality assessments Hydro-geochemistry Hetao Irrigation District
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000797784000003
WOS关键词	QUALITY ; EVOLUTION ; AREA ; SUITABILITY ; MECHANISMS ; CHEMISTRY ; DRINKING ; PURPOSES
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392526
推荐引用方式 GB/T 7714	Yuan, Hongying,Yang, Shuqing,Wang, Bo. Hydrochemistry characteristics of groundwater with the influence of spatial variability and water flow in Hetao Irrigation District, China[J],2022,29(47):71150-71164.
APA	Yuan, Hongying,Yang, Shuqing,&Wang, Bo.(2022).Hydrochemistry characteristics of groundwater with the influence of spatial variability and water flow in Hetao Irrigation District, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,29(47),71150-71164.
MLA	Yuan, Hongying,et al."Hydrochemistry characteristics of groundwater with the influence of spatial variability and water flow in Hetao Irrigation District, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 29.47(2022):71150-71164.