干旱区生态环境知识资源中心(Arid): Impact of climate variation and human activities on groundwater quality in northwest of Iran

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DOI	10.2166/aqua.2019.064
	Impact of climate variation and human activities on groundwater quality in northwest of Iran
	Khalaj, M.1; Kholghi, M.2; Saghafian, B.1; Bazrafshan, J.2
通讯作者	Kholghi, M.
来源期刊	JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA
ISSN	0003-7214
EISSN	1365-2087
出版年	2019
卷号	68 期号:2 页码:121-135
英文摘要	Groundwater plays a significant role in domestic, agricultural, and industrial water supply in semi-arid regions. In such areas, rapid growth of population and water demand in conjunction with climate change negatively impacts groundwater quantity and quality. In this research, human activities and climate change effects on groundwater quality in a semi-arid region was studied. First, a numerical groundwater model was calibrated as a tool for simulating an aquifer system. Then, groundwater salinity, as a measure of water quality, was simulated using the gene expression programming 'GEP' algorithm. In order to identify major factors influencing the salinity, the grey relational analysis (GR) technique was adopted. Furthermore, in the case study of Mahabad aquifer in northwestern Iran, decreasing precipitation has reduced river flow and aquifer recharge. Crop pattern change, through groundwater exploitation and irrigation return flow, impacted groundwater quality. Changes in temperature, evaporation and crop water requirement has also influenced the surface water-groundwater budget in the region. Groundwater simulations showed a decreasing trend in groundwater level while GEP analysis demonstrated that groundwater electrical conductivity (EC) increased over the past 40 years. Finally, GRA application showed that groundwater withdrawal and agricultural return flow had the highest correlation with increasing EC, compared with the effect of precipitation and temperature as climatic factors.
英文关键词	climate variation gene expression programming grey relational analysis groundwater quality Mahabad Valley
类型	Article
语种	英语
国家	Iran
收录类别	SCI-E
WOS记录号	WOS:000462037000004
WOS关键词	WATER-RESOURCES ; RECHARGE ; RIVER ; MANAGEMENT ; DISCHARGE ; EVALUATE ; AQUIFER
WOS类目	Engineering, Civil ; Water Resources
WOS研究方向	Engineering ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217421
作者单位	1.Islamic Azad Univ, Sci & Res Branch, Tech & Engn Fac, Dept Civil Engn, Tehran, Iran; 2.Univ Tehran, Agr & Nat Resource Coll, Dept Irrigat & Reclamat Engn, Karaj, Iran
推荐引用方式 GB/T 7714	Khalaj, M.,Kholghi, M.,Saghafian, B.,et al. Impact of climate variation and human activities on groundwater quality in northwest of Iran[J],2019,68(2):121-135.
APA	Khalaj, M.,Kholghi, M.,Saghafian, B.,&Bazrafshan, J..(2019).Impact of climate variation and human activities on groundwater quality in northwest of Iran.JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA,68(2),121-135.
MLA	Khalaj, M.,et al."Impact of climate variation and human activities on groundwater quality in northwest of Iran".JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA 68.2(2019):121-135.