Your search found 6 records
1 Dembele, M.; Zwart, Sander; Ceperley, N.; Mariethoz, G.; Schaefli, B. 2020. Multivariate and spatially calibrated hydrological model for assessing climate change impacts on hydrological processes in West Africa. [Abstract only]. Paper presented at the European Geosciences Union (EGU) General Assembly 2020, Online, 4-8 May 2020. 2p. [doi: https://doi.org/10.5194/egusphere-egu2020-9143]
Climate change ; Assessment ; Hydrology ; Models ; Calibration ; Multivariate analysis / West Africa
(Location: IWMI HQ Call no: e-copy only Record No: H050011)
https://meetingorganizer.copernicus.org/EGU2020/EGU2020-9143.html?pdf
https://vlibrary.iwmi.org/pdf/H050011.pdf
https://vlibrary.iwmi.org/pdf/H050011.pdf
(0.29 MB) (292 KB)
2 Minh, Thai Thi; Zwart, Sander; Appoh, Richard; Schmitter, Petra. 2021. Analyzing the enabling environment to enhance the scaling of irrigation and water management technologies: a tool for implementers. Colombo, Sri Lanka: International Water Management Institute (IWMI). 18p. (IWMI Working Paper 197) [doi: https://doi.org/10.5337/2021.201]
Irrigation management ; Water management ; Technology ; Agricultural value chains ; Innovation adoption ; Scaling ; Irrigated farming ; Policies ; Development programmes ; Strategies ; State intervention ; Private sector ; Nongovernmental organizations ; Stakeholders ; Farmer-led irrigation ; Donors ; Government agencies ; Institutions ; Frameworks ; Assessment ; Social aspects ; Political aspects ; Innovation scaling
(Location: IWMI HQ Call no: IWMI Record No: H050219)
(3.18 MB)
Agricultural innovation scaling approaches tend to be empirical but do not sufficiently take into account the complex realities of ‘softer elements’ such as people, supply chains, markets, financing mechanisms, policies and regulations, professional knowledge, power relations, incentives and history. As a consequence, scaling initiatives often do not produce the desired impacts and, in some instances, may even produce undesirable impacts.
Designing scaling strategies that are adaptive to context and available resources requires an understanding of the enabling environment in which the scaling processes are embedded. This can be achieved by conducting an analysis to identify enablers and hinderers influencing farmers’ adoption of irrigation and water management technologies and introducing measures to ensure success. The tool described in this working paper provides implementers with a structured guide to carrying out this analysis in a specific context.
Designing scaling strategies that are adaptive to context and available resources requires an understanding of the enabling environment in which the scaling processes are embedded. This can be achieved by conducting an analysis to identify enablers and hinderers influencing farmers’ adoption of irrigation and water management technologies and introducing measures to ensure success. The tool described in this working paper provides implementers with a structured guide to carrying out this analysis in a specific context.
3 Oke, A.; Traore, K.; Nati-Bama, A. D.; Igbadun, H.; Ahmed, B.; Ahmed, F.; Zwart, Sander. 2022. Small-scale irrigation and water management technologies for African agricultural transformation. Colombo, Sri Lanka: International Water Management Institute (IWMI). 166p. (Also in French) [doi: https://doi.org/10.5337/2022.212]
Small-scale irrigation ; Water management ; Technology ; Agricultural transformation ; Smallholders ; Farmer-led irrigation ; Land resources ; Water resources ; Water supply ; Pumping ; Shallow water ; Groundwater ; Tube wells ; Runoff water ; Water harvesting ; Ponds ; Embankments ; Dams ; Conveyance structures ; Pipes ; Irrigation methods ; Surface irrigation ; Basin irrigation ; Border irrigation ; Furrow irrigation ; Sprinkler irrigation ; Drip irrigation ; Irrigation systems ; Irrigation scheduling ; Wetting front ; Soil water content ; Sensors ; Contour cultivation ; Tillage ; Land levelling ; Soil moisture ; Moisture conservation ; Water conservation ; Techniques ; Crop production ; Water requirements ; Water use efficiency ; Irrigation equipment ; Maintenance ; Irrigation efficiency ; Solar energy ; Cost analysis ; Investment ; Business models ; Capacity development ; Training materials ; Learning activities / Africa
(Location: IWMI HQ Call no: e-copy only Record No: H051446)
(7.73 MB)
4 Oke, A.; Traore, K.; Nati-Bama, A. D.; Igbadun, H.; Ahmed, B.; Ahmed, F.; Zwart, Sander. 2022. Technologies d’irrigation à petite échelle et de gestion de l’eau pour la transformation agricole Africaine. In French. [Small-scale irrigation and water management technologies for African agricultural transformation]. Colombo, Sri Lanka: International Water Management Institute (IWMI). 179p. (Also in English) [doi: https://doi.org/10.5337/2022.213]
Small-scale irrigation ; Water management ; Technology ; Agricultural transformation ; Smallholders ; Farmer-led irrigation ; Land resources ; Water resources ; Water supply ; Pumping ; Shallow water ; Groundwater ; Tube wells ; Runoff water ; Water harvesting ; Ponds ; Embankments ; Dams ; Conveyance structures ; Pipes ; Irrigation methods ; Surface irrigation ; Basin irrigation ; Border irrigation ; Furrow irrigation ; Sprinkler irrigation ; Drip irrigation ; Irrigation systems ; Irrigation scheduling ; Wetting front ; Soil water content ; Sensors ; Contour cultivation ; Tillage ; Land levelling ; Soil moisture ; Moisture conservation ; Water conservation ; Techniques ; Crop production ; Water requirements ; Water use efficiency ; Irrigation equipment ; Maintenance ; Irrigation efficiency ; Solar energy ; Cost analysis ; Investment ; Business models ; Capacity development ; Training materials ; Learning activities / Africa
(Location: IWMI HQ Call no: e-copy only Record No: H051447)
(7.50 MB)
5 Dembele, Moctar; Salvadore, E.; Zwart, Sander; Ceperley, N.; Mariethoz, G.; Schaefli, B. 2023. Multiscale water accounting under climate change in a transboundary West African basin [Abstract only]. Paper presented at the European Geosciences Union (EGU) General Assembly 2023, Vienna, Austria and Online, 24-28 April 2023. 1p. [doi: https://doi.org/10.5194/egusphere-egu23-8955]
Water accounting ; Climate change ; Transboundary waters ; River basins ; Models / West Africa / Volta River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H051890)
https://meetingorganizer.copernicus.org/EGU23/EGU23-8955.html?pdf
https://vlibrary.iwmi.org/pdf/H051890.pdf
https://vlibrary.iwmi.org/pdf/H051890.pdf
(0.28 MB) (288 KB)
6 Dembele, Moctar; Salvadore, E.; Zwart, Sander; Ceperley, N.; Mariethoz, G.; Schaefli, B. 2023. Water accounting under climate change in the transboundary Volta River Basin with a spatially calibrated hydrological model. Journal of Hydrology, 626(Part A):130092. [doi: https://doi.org/10.1016/j.jhydrol.2023.130092]
Water accounting ; Climate change ; Transboundary waters ; River basins ; Hydrological modelling ; Water balance ; Water resources ; Water management ; Sustainability ; Water availability ; Water use ; Climate models ; Evaporation ; Land cover ; Land use ; Runoff ; Climatic zones / West Africa / Benin / Burkina Faso / Côte d'Ivoire / Ghana / Mali / Togo / Volta River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H052224)
https://www.sciencedirect.com/science/article/pii/S002216942301034X/pdfft?md5=f4d5176402091d76575e267a91c8113a&pid=1-s2.0-S002216942301034X-main.pdf
https://vlibrary.iwmi.org/pdf/H052224.pdf
https://vlibrary.iwmi.org/pdf/H052224.pdf
(10.80 MB) (10.8 MB)
Sustainable water management requires evidence-based information on the current and future states of water resources. This study presents a comprehensive modelling framework that integrates the fully distributed mesoscale Hydrologic Model (mHM) and climate change scenarios with the Water Accounting Plus (WA+) tool to anticipate future water resource challenges and provide mitigation measures in the transboundary Volta River basin (VRB) in West Africa. The mHM model is forced with a large ensemble of climate change projection data from CORDEX-Africa. Outputs from mHM are used as inputs to the WA+ framework to report on water flows and consumption over the historical baseline period 1991–2020 and the near-term future 2021–2050 at the basin scale, and also across spatial domains including four climatic zones, four sub-basins and six riparian countries. The long-term multi-model ensemble mean of the net inflow to the basin is found to be 419 km3 /year with an inter-annual variability of 11% and is projected to slightly increase in the near-term future (2021–2050). However, evaporation consumes most of the net inflow, with only 8% remaining as runoff. About 4 km3 /year of water is currently used for man-made activities. Only 45% of the available water is beneficially consumed, with the agricultural sector representing 34% of the beneficial water consumption. Water availability is projected to increase in the future due to the increase in rainfall, along with higher inter-model and inter-annual variabilities, thereby highlighting the need for adaptation strategies. These findings and the proposed climate-resilient land and water management strategies can help optimize the water-energy-food-ecosystem nexus and support evidence-based decisions and policy-making for sustainable water management in the VRB.
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