Your search found 7 records
1 Bolton, P.; Imevbore, A. M. A.; Fraval, P.. 1991. Field evaluation in Northern Nigeria of a rapid assessment procedure for identifying environmental and health hazards in irrigation schemes. In Woolridge, R. (Ed.) Techniques for environmentally sound water resources development: Papers presented to the African Regional Symposium held in Alexandria, Egypt, 17-19 February 1991. London, UK: Pentech Press. pp.64-80.
(Location: IWMI-HQ Call no: 333.91 G000 WOO Record No: H08245)
2 Fraval, P.. 1990? Health and environmental hazards in small irrigation projects in Northern Nigeria: Procedure for rapid assessment for use by engineers and project managers. Wallingford, UK: Hydraulics Research. 22p. (OD/P 99)
Public health ; Waterborne diseases ; Environmental effects ; Small scale systems ; Irrigation systems / Nigeria
(Location: IWMI-HQ Call no: P 4132 Record No: H017706)
3 Bolton, P.; Imevbore, A. M. A.; Fraval, P.. 1990. A rapid assessment procedure for identifying environmental and health hazards in irrigation schemes: Initial evaluation in Northern Nigeria. Report of a field survey. Wallingford, UK: Hydraulics Research. 82p. (Report OD 120)
Environmental effects ; Rapid rural appraisal ; Irrigation programs ; Waterborne diseases ; Public health ; Disease vectors ; Schistosomiasis ; Malaria ; Field tests ; Waterlogging ; Salinity ; Reservoirs ; Sedimentation / Nigeria
(Location: IWMI-HQ Call no: P 4140 Record No: H017713)
4 Fraval, P.; Sarr, M.; David-Benz, H. 2001. L’irrigation face a ses fonctions: analyse quantitative sur les petits perimetres du departement de Podor au Senegal. In French. [Does irrigation fulfill its functions?: the example of small irrigation schemes in the Podor Department, Senegal]. Paper presented at Seminar on irrigation in West and Central Africa in Ouagadougou, 23-26 April 2001(Journees de l’irrigation en Afrique de l’Ouest et du Centre, Ouagadougou, 23-26 avril 2001) 9p.
(Location: IWMI HQ Call no: IWMI 631.7.6.2 G218 FRA Record No: H006571)
5 Fraval, P.. 2000. Elements pour L'analyse economique des filieres agrocoles en Afrique subsaharienne: Synthese. [Economic analysis of agriculture in Subsaharan Africa]. Paris, France: French Ministry of Foreign Affairs. 100p.
Agricultural economics ; Cist benefit analysis ; Economic aspects ; Pricing ; Agricultural policy ; Economic theories / Africa South of Sahara
(Location: IWMI-HQ Call no: 338.1 G110 FRA Record No: H028457)
6 Mane, L. K.; Fraval, P.. 2001. Suivi par teledetection des cultures de decrue dans la vallee du fleuve Senegal en saison froide 2000/2001. In French. [Estimating crop yield in flood recession agriculture in the Senegal River Valley using remote sensing]. Saint-Louis, Senegal: Societe Nationale d'Amenagement et d'Exploitation des Terres du Delta du fleuve Senegal et des vallees du fleuve Senegal et de la Faleme (SAED); Saint-Louis, Senegal: Africa Rice Centre (WARDA/ADRAO); Saint-Louis, Senegal: International Water Management Institute (IWMI). 29p.
Remote sensing ; GIS ; Irrigated farming ; Climate ; Soils ; Hydrology ; Crop yield ; Sorghum ; Rice ; Estimation ; River basins ; Flood plains ; Reservoirs / Senegal / Senegal River / Manantali Reservoir
(Location: IWMI HQ Call no: IWMI 631.7.1 G218 MAN Record No: H040354)
(2.34 MB) (2.32 MB)
In the Senegal river floodplain, irrigated agriculture and traditional flood recession crops (mainly sorghum) coexist. The latter depends upon the extent of the annual flood, which is partly a function of the amount of water released from the upstream Manantali reservoir. Even though recession sorghum yield is clearly smaller than that of irrigated rice, this production system, because it covers a large area, is a major contributor to total food production in Podor and Matam departments. It is therefore important to quantify areas and yields. In collaboration with the West Africa Rice Development Association (WARDA) and the International Water Management Institute (IWMI), SAED has carried out a survey of the 2000-2001 agricultural campaign based on remote sensing and GIS analysis. In 2000, inundations in the Podor department covered 37.635 hectares. 3.277 million m3 of water were released from the Manantali reservoir specifically to support the natural flooding due to uncontrolled tributaries of the Senegal river. However, over the entire rainy season, the inflow into the reservoir exceeded the water released from it. In the Podor department, 18.998 hectares were cultivated, corresponding to 51% of the inundated area. In total, in both departments, the total area under sorghum cultivation amounted to 25.745 hectares in 2000-2001, that is only 44% of the area of the previous season, particularly wet. The total production of recession sorghum grain in the Matam department is about 4.075 tons and the average yield 638 kg/hectare. The method used gives reliable results, particularly a good relationship between yield and spectral response. It requires not more than 3 weeks of fieldwork but timing is crucial. Coupled with SAED’s Geographic Information System (GIS) and complementary to the survey of rice production using remote sensing analysis, this work provides a more accurate estimation of food production at the level of each Rural Community. It also provides objective information to assess the mutual influence of recession sorghum and irrigated rice cropping systems.
7 Fraval, P.; Bader, J.-C.; Mane, L. K.; David-Benz, H.; Lamagat, J.-P.; Diagne, O. D. 2002. The quest for integrated and sustainable water management in the Senegal River Valley. Paper presented at the 5th Inter-Regional Conference on Environment and Water (ENVIROWATER), Ouagadougou, Burkina Faso, 5-8 November 2002. 10p.
Water management ; Rivers ; Dams ; Economic analysis ; Models ; Irrigated farming ; Water power ; Rural development ; Water use ; Water demand ; Water supply ; Economic aspects / Senegal / Senegal River Valley
(Location: IWMI HQ Call no: e-copy only Record No: H044306)
http://www.hubrural.org/IMG/pdf/senegal-integrated-sustainable-water-management.pdf
https://vlibrary.iwmi.org/pdf/H044306.pdf
https://vlibrary.iwmi.org/pdf/H044306.pdf
(0.22 MB) (220.14KB)
Based ex post economic analysis of water uses and on hydrological modelling in the Senegal River Valley, this paper highlights the shortcomings of unilateral approaches to water management and argues for a holistic, multi-scale analysis that simultaneously addresses productivity, profitability and sustainability and integrates stakeholders’ strategies and capabilities. It suggests that the Manantali dam be managed so as to create an artificial flood of limited extent and enable traditional water uses since the level of competition they exert on more productive modern water uses is low.
Powered by DB/Text WebPublisher, from
