%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Kamagaté, Bamory
%A Séguis, Luc
%A Favreau, Guillaume
%A Seidel, J. L.
%A Descloitres, Marc
%A Affaton, P.
%T Processus et bilan des flux hydriques d_un bassin versant de milieu tropical de socle au Bénin (Donga, haut Ouémé) = Hydrological processes and water balance of a tropical crystalline bedrock catchment in Benin (Donga, upper Ouémé River)
%D 2007
%L fdi:010040729
%G FRE
%J Comptes Rendus Géoscience
%@ 1631-0713
%K Benin ; groundwater ; hydrochemistry ; hydrodynamics ; tropical river
%M CC:0002485279-0005
%N 6
%P 418-429
%R 10.1016/j.crte.2007.04.003
%U https://www.documentation.ird.fr/hor/fdi:010040729
%> https://www.documentation.ird.fr/intranet/publi/2007/10/010040729.pdf
%V 339
%W Horizon (IRD)
%X Hydrological processes and water balance of a tropical crystalline bedrock catchment in Benin (Donga, upper Oueme River). Hydrodynamic, geochemical, and subsurface geophysical investigations, for two consecutive years with contrasting rainfall 2 conditions, were used to characterize the hydrological processes occurring, and the water balance of a 586-km(2) watershed in Benin (Africa). The water table's monitoring shows that recharge occurs by direct infiltration of rainfall, and represents between 5 to 24% of the annual rainfall. Both surface water outflow, limited to the rainy season, and water chemistry indicate a weak groundwater contribution to river discharge. This implies that the calculated variations in annual runoff coefficients (of 14 and 28%) are mainly governed by surface and subsurface flows. To cite this article: B. Kamagati et al., C. R. Geoscience 339 (2007).
%$ 062