干旱区生态环境知识资源中心(Arid): Groundwater evolution and vulnerability in semi-arid regions using modeling and GIS tools for sustainable development: case study of Wadi Fatimah, Saudi Arabia

Arid

DOI	10.1007/s12665-022-10374-0
	Groundwater evolution and vulnerability in semi-arid regions using modeling and GIS tools for sustainable development: case study of Wadi Fatimah, Saudi Arabia
	El Osta, Maged; Niyazi, Burhan; Masoud, Milad
通讯作者	El Osta, M
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2022
卷号	81 期号:9
英文摘要	Arid and semi-arid regions suffer from multiple critical water resources' problems such as scarcity of water resources and the extensive exploitation of groundwater for different uses. These water resources problems will certainly cause declining in water tables and degradation of groundwater quality, and will raise in the near future due to the climate change and the population growth. This study will focus on Wadi Fatimah basin, which is considered the main source of water supply for many cities and villages in Makkah Province and a valuable agricultural production source. The present study aims to evaluate the hydrogeological and hydrochemical aspects of groundwater evolution and vulnerability, by the integration between Geographic Information System (GIS), hydrochemical modeling of NETPATH, and DRASTIC model. In this study, static water levels were measured in 64 wells, and 59 water samples were obtained and analyzed for concentrations of major ions, trace elements, and potentially toxic elements (PTE). The total dissolved solids (TDS) ranged from 277 to 18,518 mg/L, with a mean of 2795 mg/L, and approximately 60% of the samples were brackish water, with TDS > 1000 mg/L. The groundwater samples fall within Na-Cl-SO4 and Ca-Mg-Cl-SO4 water types. The main processes affecting the groundwater chemistry in the area tend to be evaporation and reverse ion exchange. The changes in groundwater quality that could occur because of various geochemical processes (evolution and mixing phenomena) were modeled by NETPATH. The quantities of minerals (in mmol/Kg water) that dissolved or precipitated along the flow path and/or mixed with various sources such as rainwater and seawater were calculated. Sixty-four drilling wells were also used in generating a groundwater vulnerability map based on seven parameters of the DRASTIC model. The majority of the Quaternary aquifer in Wadi Fatimah basin was represented as low-to-moderately vulnerable zones (64%, i.e., protected areas). A small portion of the aquifer in the upstream of the Wadi was identified as the very highest vulnerable zone (about 4.7%). On the other hand, a relatively high groundwater vulnerability zone was observed in the scattered sectors of the region (about 31.3%, i.e., not protected areas). The validation of the DRASTIC map using the spatial distribution map of nitrate indicated that the generated vulnerability map in Wadi Fatimah basin can be acceptable.
英文关键词	Wadi Fatimah Groundwater Vulnerability NETPATH model DRASTIC model
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000786437500004
WOS关键词	AQUIFER ; FLOW ; MECHANISMS ; SIMULATION ; RECHARGE ; SOIL
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392444
推荐引用方式 GB/T 7714	El Osta, Maged,Niyazi, Burhan,Masoud, Milad. Groundwater evolution and vulnerability in semi-arid regions using modeling and GIS tools for sustainable development: case study of Wadi Fatimah, Saudi Arabia[J],2022,81(9).
APA	El Osta, Maged,Niyazi, Burhan,&Masoud, Milad.(2022).Groundwater evolution and vulnerability in semi-arid regions using modeling and GIS tools for sustainable development: case study of Wadi Fatimah, Saudi Arabia.ENVIRONMENTAL EARTH SCIENCES,81(9).
MLA	El Osta, Maged,et al."Groundwater evolution and vulnerability in semi-arid regions using modeling and GIS tools for sustainable development: case study of Wadi Fatimah, Saudi Arabia".ENVIRONMENTAL EARTH SCIENCES 81.9(2022).