Publications des scientifiques de l'IRD

Mohamed A. S., Leduc Christian, Marlin C., Wague O., Cheikh M. A. S. (2017). Impacts of climate change and anthropization on groundwater resources in the Nouakchott urban area (coastal Mauritania). In : Manighetti I (ed.), De Witt R. (ed.), Duvail Stéphanie (ed.), Seyler Patrick (ed.). Vulnerability of inter-tropical littoral areas. Comptes Rendus Geoscience, 349 (6-7), p. 280-289. ISSN 1631-0713.

Titre du document
Impacts of climate change and anthropization on groundwater resources in the Nouakchott urban area (coastal Mauritania)
Année de publication
2017
Type de document
Article référencé dans le Web of Science WOS:000417625700007
Auteurs
Mohamed A. S., Leduc Christian, Marlin C., Wague O., Cheikh M. A. S.
In
Manighetti I (ed.), De Witt R. (ed.), Duvail Stéphanie (ed.), Seyler Patrick (ed.), Vulnerability of inter-tropical littoral areas
Source
Comptes Rendus Geoscience, 2017, 349 (6-7), p. 280-289 ISSN 1631-0713
Declining groundwater resources in semi-arid areas are often cited because of anthropization and climate change. This is not the case in Nouakchott (Mauritania) where the water level has risen by 1 to 2 m over the last 40 years in parallel with urban expansion (+1 million inhabitants in 60 years). Using former and new data, primarily water table measurements and chemical indicators (major ions, bromide, O-18, H-2), we show that the groundwater level rise is mainly a consequence of the rapid population growth in the Nouakchott area, while the global sea level rise only has a limited impact. The increased supply of domestic water (currently 120,000 m(3)/day) and the lack of waste water networks have added large amounts of water to the Quaternary aquifer. In this metropolis where 60% of the total area is at an elevation of less than 1 m asl, the rise in the groundwater level has dramatic consequences, including the abandonment of flooded districts, and the emergence of new diseases.
Plan de classement
Sciences du milieu [021] ; Hydrologie [062] ; Urbanisation et sociétés urbaines [102]
Description Géographique
MAURITANIE ; NOUAKCHOTT ; ZONE SEMIARIDE
Localisation
Fonds IRD [F B010071892]
Identifiant IRD
fdi:010071892
Contact