Abstract
Fossil groundwater is used for water supply and irrigation in some arid regions where the replenishment of groundwater by precipitation is low. Numerical modelling is a helpful tool in the assessment of groundwater resources and analysis of future exploitation scenarios. To quantify the groundwater resources of the Dakhla area in the southern Sahara, Morocco, the present study assesses the groundwater resources management of the Paleogene aquifer. Groundwater withdrawals have increased in this area, resulting in a disturbance of the aquifer’s natural equilibrium, and the large-scale and ongoing depletion of this critical water reserve. Negative impacts, such as a decline in water levels, have been experienced. The methodology includes application of numerical groundwater modelling in steady and transient states under different measures and abstraction scenarios. The numerical simulation model developed was applied to assess the responses of the Paleogene aquifer water level under different pumping scenarios during the next 10 years. Groundwater management scenarios are evaluated to find an optimal management solution to satisfy future needs. To cope with the unfavourable state of the water resources of Dakhla in the coming years, a groundwater contract was developed to save the groundwater resources and not compromise the socio-economic development of the region, particularly agricultural development. This contract includes technical, organizational and financial measures. They were discussed in workshops with all stakeholders to identify good management alternatives in the Dakhla area in south of Morocco.
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References
Edoulati N, Boutaleb S, Bettar I, Ouchbani A (2013) Contributions of chemical and isotopic tools for understanding the groundwater modes recharge and flow in the lower cretaceous aquifer in the Moroccan Sahara. J Water Resour Prot 5:183–199
Labails C, Olivet J-L (2009) Crustal structure of the SW Moroccan margin from wide-angle and reflection seismic data (the Dakhla experiment). Part B—The tectonic heritage. Tectonophysics 468(1–4):83–97. doi:10.1016/j.tecto.2008.08.028
Rjimati E, Zemmouri A (2002) Geological map of Morocco at 1/100 000.Ad-Dakhla sheet, NF-28-XI-3. Notes Mem Geol Serv no 438bis. ISSN 0374-9789
Acknowledgements
The authors thank the members of the Hydraulic Basin Agency Sakia El Hamra and Oued Ed-Dahab, for their collaboration and for the documents that they make available to us.
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El Kanti, S.M., El Mansouri, B., Arjdal, Y., Larabi, A. (2018). Numerical Groundwater Modelling as an Effective Tool for Management of the Deep Aquifer at the Dakhla Bay (South of Morocco). In: Calvache, M., Duque, C., Pulido-Velazquez, D. (eds) Groundwater and Global Change in the Western Mediterranean Area. Environmental Earth Sciences. Springer, Cham. https://doi.org/10.1007/978-3-319-69356-9_15
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DOI: https://doi.org/10.1007/978-3-319-69356-9_15
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