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Africa is the second driest continent of the world after Australia. The continent comprises only 9% of the global fresh water resources, but supports 15% of the world population (Mazvimavi et al.; 2013). The booming population in Africa increases considerably the freshwater demand of the domestic, agricultural, and industrial sectors. Parts of these demands are fulfilled by increasing groundwater extractions. Yet, the increasing exploitation of groundwater has also resulted in significant pressures. As well natural factors, as anthropogenic pressures threaten the sustainability of groundwater exploitation at the continental scale. But the pressures exerted by the agricultural sector is of primary concern as agriculture is the most important consumer of fresh water at the continental and global scale. The general objective of the research is the mapping of groundwater vulnerability and pressures at the scale of the in African continent using modern digital mapping, advanced data fusion and pressure modelling techniques. To achieve this objective, the proposed approach consists of using the most recent continental scale information on land use, climate, agricultural pressure, soil and groundwater. The methodology will be based firstly on a detailed study of the literature. Secondly a compilation of existing available databases will be made. Thirdly the modelling methodology will be designed and implemented in a Global Information System (GIS). Finally, smaller scale case studies will be selected allowing to validate the methodology. The results of this study will provide theoretical and practical bases for better management and protection of groundwater resources at the scale of the African continent. Key words: Africa, groundwater, modeling, sustainability, mapping, data fusion, GIS. Mazvimavi D., Maathuis B., Kirugara D., Fernandez D. (2013). Water resources management (http://www.bragma.eu/home/files/GMESAfrica_WaterResourcesManagementChapter_Final.pdf).
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Ouedraogo, I., Defourny, P., & Vanclooster, M. (2014). Groundwater pressure mapping in Africa. In Lambot Sébastien (ed.), Proceedings (p. p. 9). https://hdl.handle.net/2078.5/200472