Small reservoirs: hot spot of scattered resources in the Volta basin
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Presented by Philippe Cecchi (G-eau / IRD) at the International Forum on Water and Food (IFWF), South Africa, 14-17 November 2011. The International Forum on Water and Food (IFWF) is the premier gathering of water and food scientists working on improving water management for agricultural production in developing countries.
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Small reservoirs: hot spot of scattered resources in the Volta basin
- 1. Small reservoirs: hot spot of scattered resources in the Volta basin P. CECCHI On behalf of the V3 Project
- 2. Burkina Faso Localization Enclosed within the large ring of the Niger River 274 200 Km 2 ( ≈ ½ France; ≈ 22% South Africa) 10,5 M. inhbts in 1996 (14,1 M. in 2006) ≈ 38 inhbts / km 2 ; recurrent poverty Upper Basins of the Volta River (Ghana)
- 3. 1951-1980 1981-2000 600 mm 900 mm 1/ Threshold ≈ mid-seventies 2/ Precipitations: - 30 % 3/ Southern migration: > 100 km SR: an answer to aridification 1951-1980 > 1700 reservoirs
- 4. SR ≈ 7 M. rural folk Dry season: > 1000 km 2 > 4000 km
- 9. Up- & Down- scaling in terms of resource management and/but also in terms of processes involved From scale to scale CPWF2: V3