Sustainable groundwater management in arid regions considering climate change impacts in Moghra region, Egypt

Sayed, E.M.; Riad, Peter; Elbeih, Salwa F.; Hassan, Ahmed; Hagras, Mona A.

doi:10.1016/j.gsd.2020.100385

Cited by 21 publications

(10 citation statements)

References 14 publications

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“…Earlier studies for the NSAS defined a factor of safety for sustainable groundwater use as a drawdown that does not exceed 50% of the saturated thickness of the aquifer over 100 years (Hefny and Sahta 1996). Currently, the MWRI's conservative arbitrary limit, dubbed "safe yield" of groundwater abstraction, is defined as the extraction rate that causes a drawdown of 1 m/year (Sayed et al 2020;MWRI 2018). According to El-Mansy et al ( 2020), the MWRI adopted a sustainability criterion for Farafra Oasis whereby the economic lifting depth limit, set at 40 m beneath the land level, should not be reached before 100 years.…”

Section: Discussionmentioning

confidence: 99%

“…Using SEAWAT they concluded that irrigating this full area (scenario 3) with 0.7 MCM/day would cause a drawdown of 58-81 m and a salinity increase between 7 and 17%, according to the well location, after a simulation period of 100 years. Likewise, using MODFLOW, Sayed et al (2020) tested several scenarios over a period of 100 years and recommended cultivating an area of 36,000 ha, with a total abstraction of 2.88 MCM/day from 1,000 wells, which would cause a drawdown of 92 m (less than 1 m/year). Ragab et al (2019) used the Visual MODFLOW software to test different pumping scenarios over a 50-year period.…”

Section: El-moghra Aquifer System Modelling Studiesmentioning

confidence: 99%

“…They predicted a drawdown of 369 m for an abstraction of 1.86 Mm 3 /year (full development of 170,000 feddan) and recommended reducing planned pumping rates by 70% to extend the lifetime of the aquifer. It is believed that the aquifer is "probably recharged through upward leakage under artesian conditions" (Sayed et al 2020), which serves to underline the high uncertainty inherent in these quantitative projections. Wadi El-Natroun is a depression to the east of El-Moghra Aquifer (Fig.…”

Section: El-moghra Aquifer System Modelling Studiesmentioning

confidence: 99%

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Review: Toward sustainable management of groundwater in the deserts of Egypt

El-Agha,

Molle,

Metwally

et al. 2023

Hydrogeol J

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To achieve its ambitious plans to reclaim its deserts through mega projects, Egypt is heavily relying on fossil or little-recharged groundwater. This article revisits the results and methodologies of the studies conducted over the last two decades on groundwater management and uses in the Western Desert. Most previous studies aimed at simulating different groundwater abstraction scenarios by modeling local areas in aquifer systems, but with poor definitions of boundary conditions and limited historical data. Studies were constrained by the unavailability of data, access difficulties, and high collection costs in desert lands. Thus, to propose reliable sustainable groundwater resources development plans and recommendations for future protection strategies, an open-access monitoring network representing regional aquifers is needed. More investigations based on extensive field visits are essential to monitor environmental, economic, and social conditions, identify constraints, and learn lessons for reclaiming desert lands. Moreover, this review highlighted the need to frame a rational strategy for the long-term sustainable exploitation of non-renewable groundwater in the aquifer systems of Egypt and develop an appropriate exit strategy for desert communities in case of serious water resource depletion.

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Section: Discussionmentioning

confidence: 99%

Section: El-moghra Aquifer System Modelling Studiesmentioning

confidence: 99%

Section: El-moghra Aquifer System Modelling Studiesmentioning

confidence: 99%

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Review: Toward sustainable management of groundwater in the deserts of Egypt

El-Agha,

Molle,

Metwally

et al. 2023

Hydrogeol J

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“…In recent years, the world has faced scarcity of freshwater resources due to the population increase, and urban sprawl, which exposed water resources to deterioration in both quantity and quality (Massoud 2012). Consequently, water quality control in many countries has become among the highest priorities (Simeonov et al 2002), especially, in arid and semiarid regions (Sayed et al 2020). Continuity in evaluation and control of water quality helps in the continuous development of the strategies applied for pollution control (Yao et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Quaternary groundwater aquifer suitability for drinking in Akhmim, Upper Egypt: an assessment using water quality index and GIS techniques

2022

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The Quaternary aquifer has a special significance in Akhmim district, Upper Egypt, especially during the dry seasons, when surface water resources are insufficient and limited. In Akhmim district, the population mainly depends on groundwater for drinking, especially in spontaneous residential areas and inside agricultural lands. Therefore, assessing the groundwater quality is necessary to reduce diseases resulting from using polluted water in drinking. The Weighted Arithmetic Water Quality Index (WAWQI) was used for evaluating the groundwater quality, and it was classified according to the Egyptian and WHO standards and based on fifteen measured physicochemical parameters (TDS, Na, Cl, Ca, pH, Mg, NO3, SO4, TH, Cr, Cu, Fe, Pb, Mn, and Zn). To investigate the spatial distribution of WAWQI in Akhmim district, the spatial analyst tools (IDW method) were used. The WAWQI results showed a great diversity in groundwater viability for drinking due to the exposure of groundwater to many sources of degradation, identified through field verification and previous work about the study area. The groundwater of the Quaternary aquifer was divided into excellent, good, poor, very poor, and unsuitable. In addition, about 50% of Akhmim district wells are inappropriate for drinking with classes ranging from unsuitable to poor. To use groundwater for drinking, the sources of degradation to which the groundwater is exposed must first be reduced, and the water should be treated before drinking.

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“…Egypt is characterized by hot desert climate conditions. It has already experienced extensive precipitation reduction and increased evapotranspiration which then subsequently caused a shortage in surface water, including Lakes, the Nile River, and groundwater (Elbeltagi et al 2020;Sayed et al 2020;Shalby et al 2020). The T min is increasing by (0.1-0.3°C/decade), greater than T max (0.1-0.2°C/decade) in the last few decades.…”

Section: Introductionmentioning

confidence: 99%

Projection of temperature extremes of Egypt using CMIP6 GCMs under multiple shared socioeconomic pathways

Hamed

Salehie

Nashwan

et al. 2022

Environ Sci Pollut Res

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Global warming has ampli ed the frequency and other properties of temperature extremes, especially in hot dry countries, and signi cantly affected the environment. Egypt is one of the hot desert climate regions that are more susceptible to climate change and associated hazards. This study attempted to project the changes in temperature extremes for three Shared Socioeconomic Pathways (SSPs), namely SSP1-2.6, SSP2-4.5, and SSP5-8.5 and two future periods (early future: 2020-2059, and late future: 2060-2099) by using annual maximum (Tmax) and minimum temperature (Tmin) of general circulation model (GCMs) of Coupled Model Inter-comparison Project phase 6 (CMIP6). The ndings showed that most temperature extremes indices would increase especially by the end of the century. In the late future, the change in the mean minimum temperature (4.3°C) was projected to be higher than the mean maximum temperature (3.7°C). The number of hot days would increase by more than 80 days in the late future over the south and southeast of the country. Contrarily, the cold night temperatures would decrease by -0.95 to -3.0°C for different SSPs. The study indicates that the country is likely to experience an additional hotter climate rather than a colder one.

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Sustainable groundwater management in arid regions considering climate change impacts in Moghra region, Egypt

Cited by 21 publications

References 14 publications

Review: Toward sustainable management of groundwater in the deserts of Egypt

Review: Toward sustainable management of groundwater in the deserts of Egypt

Quaternary groundwater aquifer suitability for drinking in Akhmim, Upper Egypt: an assessment using water quality index and GIS techniques

Projection of temperature extremes of Egypt using CMIP6 GCMs under multiple shared socioeconomic pathways

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