geosciences Article Moroccan Groundwater Resources and Evolution with Global Climate Changes Mohammed Hssaisoune 1,2,* , Lhoussaine Bouchaou 3,4, Abdelfattah Sifeddine 5,6 , Ilham Bouimetarhan 1,7 and Abdelghani Chehbouni 4,8 1 Faculty of Applied Sciences, Ibn Zohr University, Ait Melloul 86153, Morocco;
[email protected] 2 GEVARET-FST, Sultan Moulay Slimane University, Béni Mellal 23000, Morocco 3 Laboratory of Applied Geology and Geo-Environment, Ibn Zohr University, Agadir 80035, Morocco;
[email protected] 4 International Water Research Institute, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco;
[email protected] 5 Institut de recherche pour le développement France-Nord, LOCEAN - IPSL UMR 7159, IRD-Sorbonne Universités (Université P. et M. Curie, Paris 06) -CNRS/UPMC/IRD, 75000 Paris, France;
[email protected] 6 LMI PALEOTRACES, IRD-UFF-UANTOF-UPCH, Universidad Federal Fluminense, Niteroi 24020-091, Rio de Janeiro, Brazil 7 MARUM—Center for Marine Environmental Sciences, University of Bremen, D-28359 Bremen, Germany 8 CESBIO, Université de Toulouse, CNRS, CNES, IRD, BPI 280, 31065 Toulouse CEDEX 9, France * Correspondence:
[email protected] Received: 18 January 2020; Accepted: 19 February 2020; Published: 22 February 2020 Abstract: In semi-arid areas, many ecosystems and activities depend essentially on water availability. In Morocco, the increase of water demands combined to climate change induced decrease of precipitation put a lot of pressure on groundwater. This paper reports the results of updating and evaluation of groundwater datasets with regards to climate scenarios and institutional choices. The continuous imbalance between groundwater extraction and recharge caused a dramatic decline in groundwater levels (20 to 65 m in the past 30 years).