The focus of the current joint project is located on the transfer of knowledge to Benin and Morocco. The IMPETUS project has carried out mono-disciplinary and interdisciplinary research projects between 2000 and 2009 in the catchment areas of the rivers Ouémé (Benin) and Drâa (Morocco). Besides, results were achieved thanks to a close co-operation with different institutions in both countries in the subject area of food security, hydrology, land use, society and health (see subjects Benin and subjects Morocco). On the base of these results, tools have been developed that can contribute to an efficient management of the limited natural resources, especially water resources.