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Assessing the impact of artificial recharge on groundwater in an overexploited aquifer: A case study in the Cheria Basin, North-East of Algeria

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地下水科学与工程:英文版 2023年第3期11卷 263-277页

作者： Mouna Djellali Omar Guefaïfia chemsedinne fehdi Adel Djellali Amor Hamad Sedimentary Environment Mineral and Water Resources of Eastern Algeria LaboratoryDepartment of Earth sciences and universeLarbi Tebessi University12002 TebessaAlgeria Environmental laboratory Mining instituteLarbi Tebessi University12002 TebessaAlgeria

The Cheria region in Northeastern Algeria has been facing aquifer overexploitation by the agricultural sector and prolonged droughts,resulting in a considerable decline in groundwater *** study investigates the feasibility of implementing artificial recharge techniques to replenish the Eocene aquifer which serves as the primary water source in the Cheria region.A 3D transient numerical model,based on the finite difference method,was used to simulate groundwater flow from 2021 to 2031 using Visual MODFLOW *** the modelling process,three scenarios were considered:(1)including pumping without a recharge,(2)recharge of the entire area through efficient infiltration without pumping,and(3)artificial recharge using river water infiltration basins at two sites,Draa Douamis sinkholes and Eocene limestone *** simulation results showed that aquifer exploitation without recharge caused significant drawdowns,which were 3 m to 7 m in the north-eastern part and 8 m to 12 m in the central and southern *** contrast,the second scenario,involving recharge without pumping,showed a rise in groundwater levels of 2 m to 2.7 m in the north-eastern part and 3 m to 3.62 m in the central and southern *** third scenario,employing artificial recharge,indicated a positive response to artificial recharge,with increased piezometric levels at the proposed sites,signifying a beneficial impact on the *** findings underline the potential of artificial recharge as a promising approach to address the groundwater depletion and environmental issues in the Cheria Basin.

关键词： Eocene limestone Piezometric level Numerical simulation Visual MODFLOW Flex Artificial recharge

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