@article {6926,
	title = {Groundwater modelling of the Tebessa-Morsott alluvial aquifer (northeastern Algeria): A geostatistical approach},
	journal = {Groundwater for Sustainable Development },
	volume = {11},
	year = {2020},
	abstract = {This paper studies aquifer{\textquoteright}s hydrodynamic behavior by combining a flow-simulation model with\&nbsp;transmissivity\&nbsp;optimization (cokriging) in order to provide an optimal management scheme for the groundwater aquifer. The use of a cokriging approach improves the\&nbsp;transmissivity\&nbsp;data which are insufficient for the database of the\&nbsp;groundwater flow\&nbsp;simulation model. The obtained results are then used to model the\&nbsp;groundwater flow\&nbsp;of the Tebessa-Morsott shallow aquifer, located in NE Algeria, under a steady and transient regime. The results of the model calibration for the steady-state (year 2010) show that the recharge by rainfall and\&nbsp;leakage\&nbsp;rate are similar compared to those calculated by the analytical approach, (84,354\&nbsp;m3/day for the recharge and 36,986\&nbsp;m3/day for pumped water flow rate). The results of the transient regime show the alluvial aquifer affected by large drawdowns reaching 40\&nbsp;m over 20 years (year 2030 scenario) due to increase in water exploitation from pumping wells to answer water needs of the Tebessa region.},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S2352801X1930311X},
	author = {Drias, Tarek and Abdelhamid Khedidja and Moufida Belloula and Badraddine, Saadali and Saibi, Khedoudj}
}
@article {6925,
	title = {Identifying groundwater degradation sources in a Mediterranean coastal area experiencing significant multi-origin stresses},
	journal = {Science of The Total Environment },
	volume = {746},
	year = {2020},
	abstract = {
	This study investigates the multiple contamination sources of a coastal Mediterranean aquifer in northeastern Algeria that is bordered by two rivers and neighboring densely populated areas. Hydrogeochemical and isotopic groundwater characterization is carried out, including the analyses of major elements, water\&nbsp;stable isotopes\&nbsp;δ2H-H2O and δ18O-H2O, and stable isotopes of nitrate δ15N-NO3\&nbsp;and δ18O-NO3, and then integrated into the history of land use over the study area. Groundwater nitrate concentrations ranging from 1.6 to 235\&nbsp;mg/L with a median value of 69\&nbsp;mg/L are evidence of the degradation of groundwater quality induced by\&nbsp;anthropogenic sources. The combined of δ15N-NO3\&nbsp;and δ18O-NO3\&nbsp;ratios showed that nitrate in groundwater is attributable to (i) the uncontrolled development of inadequate private sanitation systems over the study area, and (ii) the unsafe application of animal manure to fertilize crops. Very active\&nbsp;saltwater intrusion\&nbsp;is confirmed by several hydrogeochemical indicators. Interestingly, the intrusion mechanism appears to be more complex than a direct intrusion from the Mediterranean Sea. During the high-water period, saltwater intrusion may also originate from the two rivers bordering the aquifer, via upstream migration of seawater through the river mouths. The heavier ratios in δ2H-H2O and δ18O-H2O of surface water collected from the rivers suggest that water from the Mediterranean Sea is mixing with water in the rivers. Multi-source contamination not only contributes to complex chemical reactions within the aquifer, but also contributes, via the\&nbsp;cumulative effect\&nbsp;of the various sources, to affecting large parts of the study area. The present study may serve as a warning to the effect that historical land-use practices may exert seriously deleterious impacts on groundwater quality and greatly limit conditions for the sustainable management of Mediterranean coastal areas.

},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S004896972034732X},
	author = {Boumaiza, Lamine and Chesnaux, Romain and Drias, Tarek and Walter, Julien and Huneau, Fr{\'e}d{\'e}ric and Garel, Emilie and Knoeller, Kay and Stumpp, Christine}
}
