干旱区生态环境知识资源中心(Arid): Assessment of groundwater quality using GIS, hydrogeochemistry, and factor statistical analysis in Qena governorate, Egypt

Arid

DOI	10.5004/dwt.2019.24423
	Assessment of groundwater quality using GIS, hydrogeochemistry, and factor statistical analysis in Qena governorate, Egypt
	El-Rawy, Mustafa 1,2; Ismail, Esam 3; Abdalla, Osman 4
通讯作者	El-Rawy, Mustafa
来源期刊	DESALINATION AND WATER TREATMENT
ISSN	1944-3994
EISSN	1944-3986
出版年	2019
卷号	162 页码:14-29
英文摘要	Groundwater is an important freshwater source for agricultural, drinking and industrial use in arid areas. The present study integrates geographic information system (GIS), hydrochemistry, and factor analysis to assess groundwater quality under expanding agricultural activities in Qena Governorate, Egypt. A total of 73 groundwater samples were collected and analyzed for pH, electrical conductivity (EC), total dissolved solids, major cations (Ca2+, Mg2+, Na+, K+), major anions (HCO3-, Cl-, SO42-, F-), and total hardness. The spatial distribution of these analyzed physico-chemical parameters was mapped with GIS. According to the World Health Organization and Egyptian water standards, the computed water quality index shows that about 62% of the groundwater wells are suitable for drinking. Groundwater suitability for irrigation was assessed on the basis of sodium adsorption ratio (SAR), residual sodium carbonate (RSC), Kelley ratio (KR), magnesium hazard (MH). It is found that 99% of the wells are suitable for irrigation when considering the values of EC, and SAR only. However, only 50% of the wells are suitable for irrigation if Na+%, RSC, and KR are considered. Hydrochemical classification and factor analysis indicate that the groundwater is Na+-Cl-(58%) and MgCl (23%) dominant which signifies the role of evaporation under intensive irrigation and hot climate. Dissolution of evaporites loads the system with Na+ and Cl-whereas return flow from irrigation transports solutes to groundwater. Increasing Mg2+ is due to dolomitic dissolution and the use of fertilizers. Moreover, ionic exchange activities increase Na+ concentration in the groundwater at the expense of Ca2+, but does not affect Mg2+. The integration of traditional hydrochemical analysis and GIS with factor analysis is useful to understand the factors controlling groundwater chemistry and may aid decision makers toward effective groundwater quality management.
英文关键词	Groundwater quality Hydrochemistry GIS Factor analysis Drinking and irrigation Egypt
类型	Article
语种	英语
国家	Saudi Arabia ; Egypt ; Oman
收录类别	SCI-E
WOS记录号	WOS:000482220600002
WOS关键词	WATER-QUALITY
WOS类目	Engineering, Chemical ; 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/2XILL650/215042
作者单位	1.Shaqra Univ, Civil Engn Dept, Coll Engn, Dawadmi 11911, Ar Riyadh, Saudi Arabia; 2.Menia Univ, Dept Civil Engn, Fac Engn, Al Minya 61111, Egypt; 3.Menia Univ, Dept Geol, Fac Sci, Al Minya 61111, Egypt; 4.Sultan Qaboos Univ, Dept Earth Sci, Coll Sci, POB 36, Muscat 123, Oman
推荐引用方式 GB/T 7714	El-Rawy, Mustafa,Ismail, Esam,Abdalla, Osman. Assessment of groundwater quality using GIS, hydrogeochemistry, and factor statistical analysis in Qena governorate, Egypt[J],2019,162:14-29.
APA	El-Rawy, Mustafa,Ismail, Esam,&Abdalla, Osman.(2019).Assessment of groundwater quality using GIS, hydrogeochemistry, and factor statistical analysis in Qena governorate, Egypt.DESALINATION AND WATER TREATMENT,162,14-29.
MLA	El-Rawy, Mustafa,et al."Assessment of groundwater quality using GIS, hydrogeochemistry, and factor statistical analysis in Qena governorate, Egypt".DESALINATION AND WATER TREATMENT 162(2019):14-29.