干旱区生态环境知识资源中心(Arid): Hydrogeochemical Characteristics and Quality Assessment of Groundwater in an Irrigated Region, Northwest China

Arid

DOI	10.3390/w11010096
	Hydrogeochemical Characteristics and Quality Assessment of Groundwater in an Irrigated Region, Northwest China
	Chen, Jie 1,2; Huang, Qiwei 1,2; Lin, Yaling 1,2; Fang, Yuan 1,2; Qian, Hui 1,2; Liu, Ruiping 3; Ma, Hongyun 3
通讯作者	Qian, Hui
来源期刊	WATER
EISSN	2073-4441
出版年	2019
卷号	11 期号:1
英文摘要	Groundwater is one of the most important sources of water for drinking and irrigation in arid and semi-arid regions of the world. In this study, 50 groundwater samples were collected and analyzed for various chemical constituents (pH, TDS, Na+, K+, Ca2+, Mg2+, SO42-, Cl-, HCO3-, NO3-, and F-) to identify the hydrogeochemical characteristics, and to evaluate its suitability for drinking and irrigation uses in Zhongning area of Northwest China. Results showed that groundwater was slightly alkaline in nature. Fluoride and nitrate concentrations in the groundwater of the study region were much higher than its prescribed limits for drinking purposes. A factor analysis (FA) was implemented to understand the contamination source of groundwater in the region, and the results indicated that rock-water interaction, geogenic, and human-induced contamination were the major factors influencing groundwater chemistry. An entropy-weighted water quality index (EWQI) was employed to evaluate the water quality for drinking purpose. Mg2+, Ca2+, SO42-, HCO3-, and TDS played the leading roles in influencing the groundwater quality with high weights. Forty-eight percent of groundwater samples were unfit for drinking purpose in the study area, due to poor quality. Elevated concentrations of SO42-, Cl- and NO3--N in groundwater caused poor quality and extremely poor quality water, which may be attributed to human activities. According to the calculation of sodium percentage (Na%), sodium adsorption ration (SAR), and permeability index (PI), the majority of the groundwater samples were suitable for irrigation. However, it should be noted that 26% of the samples were unfit for irrigation because of the high salinity in the groundwater. This is mainly attributed to the intense evaporation and the intensified irrigation activities in the region. The findings in this study contribute to a better understanding of groundwater sustainability for supporting water management and protection in the future.
英文关键词	groundwater sustainability arid region EWQI hydrogeochemistry Factor Analysis
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000459735100095
WOS关键词	WATER-QUALITY ; HEALTH-RISK ; AGRICULTURAL USE ; YINCHUAN PLAIN ; RIVER-BASIN ; TAMIL-NADU ; DRINKING ; CONTAMINATION ; SUITABILITY ; AQUIFER
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/2XILL650/219170
作者单位	1.Changan Univ, Sch Environm Sci & Engn, Xian 710054, Shaanxi, Peoples R China; 2.Changan Univ, Key Lab Subsurface Hydrol & Ecol Effect Arid Reg, Minist Educ, 126 Yanta Rd, Xian 710054, Shaanxi, Peoples R China; 3.Xian Ctr China Geol Survey, 438 East Youyi Rd, Xian 710054, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Chen, Jie,Huang, Qiwei,Lin, Yaling,et al. Hydrogeochemical Characteristics and Quality Assessment of Groundwater in an Irrigated Region, Northwest China[J],2019,11(1).
APA	Chen, Jie.,Huang, Qiwei.,Lin, Yaling.,Fang, Yuan.,Qian, Hui.,...&Ma, Hongyun.(2019).Hydrogeochemical Characteristics and Quality Assessment of Groundwater in an Irrigated Region, Northwest China.WATER,11(1).
MLA	Chen, Jie,et al."Hydrogeochemical Characteristics and Quality Assessment of Groundwater in an Irrigated Region, Northwest China".WATER 11.1(2019).