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Communication incl. Poster: BibTeX citation key:  Ibrahima
Ibrahim, B., Karambiri, H., Yacouba, H., Diello, P., Barbier, B., Mahé, G., Paturel, J.-E. & Polcher, J. 2009. Flows forecasting on the Nakambé basin at Wayen with taking into account the interrelationship climate-man-environment. Work presented at Third International AMMA Conference, July 20—24, at Ouagadougou, Burkina Faso.
Added by: roussot 2009-11-05 09:57:19
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Categories: Society-Environment-Climate interactions
Keywords: Water - Energy - Resources
Creators: Barbier, Diello, Ibrahim, Karambiri, Mahé, Paturel, Polcher, Yacouba
Publisher: African Monsoon Multidisciplinary Analyses (Ouagadougou, Burkina Faso)
Collection: Third International AMMA Conference

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Abstract
It is well shown today that the Sahelian area of West Africa undergos for more than thirty years a situation of climatic damage with a noteworthy decrease of rainfall and a degradation of its environment. The increase of the population generated a strong pressure on the water resources as testifies the bulding of more than four hundred (400) small dams on the Nakambé basin in Burkina Faso.Recent studies carried out on the analysis of the hydrological response of the septentrional part of the basin (in the top of Wayen) to the climatic change established a situation of an hydrological paradox (decrease of rainfall and increase of flows). For better modelling the particular hydrological functioning of this basin with GR2M model, it was established a methodology of land uses evolution from 1963 to 2002. Taking into account this dynamics of land uses in the model has made possible to improve the results of the modelling.
The importance of the basin for the survival of the population and also for the economic development of the country requires a good known of the evolution of the flows on this basin. In the optics of a better forecasting of the flows on the basin at the 2050 horizon, it was proceeded to a series of simulations of the flows at the station of Wayen using the conceptual and semi-distributed model GR2M with taking into account of the interrelationship climate-man-environment.
These simulations are made with climatic and land uses scenarios on the basin. The first results show a trend of increase of the flows of about 25% by 2050 compared to the period 1996-2002.
Added by: roussot