Water Resources Management

, Volume 24, Issue 13, pp 3591–3613 | Cite as

Benin 2025—Balancing Future Water Availability and Demand Using the WEAP ‘Water Evaluation and Planning’ System

  • Britta Höllermann
  • Simone Giertz
  • Bernd Diekkrüger
Article

Abstract

In Benin, annual water availability per capita far exceeds the critical threshold of about 1,700 m3, but during the dry season, water scarcity occurs at the local scale. By modeling the water balance of the Ouémé–Bonou catchment with WEAP (Water Evaluation and Planning System), this study aimed at analyzing Benin’s future water situation under different scenarios of socio-economic development and climate change until 2025. The results show that the pressure on Benin’s water resources will increase, leading to greater competition for surface water. Furthermore, financial and technological constraints hinder a satisfactory development, and exploration of groundwater and reservoir resources. However, improvements are most needed, especially in rural areas. Decreasing inflows and groundwater recharge due to climate change aggravate this situation. Even though there are uncertainties and constraints concerning the model and input data, this study shows that the WEAP results offer a solid basis to assist planners in developing recommendations for future water resource management by revealing hot spots of action.

Keywords

Water resource management WEAP model Water balance Water demand scenarios West Africa Ouémé River 

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Britta Höllermann
    • 1
  • Simone Giertz
    • 1
  • Bernd Diekkrüger
    • 1
  1. 1.Department of GeographyUniversity of BonnBonnGermany

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