Your search found 7 records
1 Pavelic, Paul; Smakhtin, Vladimir; Favreau, G.; Villholth, K. G. 2011. Water balance approach for assessing potential for small-scale groundwater irrigation in Sub-Saharan Africa. Paper presented at the International Conference on Groundwater: Our Source of Security in an Uncertain Future, CSIR International Convention Centre, Pretoria, South Africa, 19-21 September 2011. 12p.
Water balance ; Groundwater development ; Groundwater irrigation ; Water storage ; Small scale systems ; Rain ; Smallholders ; Farmers ; Dry season ; Monitoring ; River basins ; Case studies / Africa South of Sahara / Ghana / Burkina Faso / Atankwidi basin / Iullemmeden basin / Southwestern Niger
(Location: IWMI HQ Call no: e-copy only Record No: H044349)
(0.22 MB)
Strategies for overcoming the lack of agricultural groundwater development over much of SSA are urgently needed. Expansion of small-scale groundwater irrigation offers an attractive option to smallholder farmers to overcome poor wet-season rainfall and enhance dry season production. This paper presents a simple, generic methodology that involves a set of type-curves to aid with decision making on the scope of opportunities for developing sustainable irrigation supplies, and to help understand how cropping choices influence the areal extent of irrigation. Guidance to avoid over-exploitation of the resource is also provided. The methodology was applied to two sites in West Africa with contrasting climate and subsurface conditions and at both sites there is potential for further groundwater development for irrigation whilst allowing provisions for other sectorial uses, including the environment.
2 Pavelic, Paul; Smakhtin, Vladimir; Favreau, G.; Villholth, Karen G. 2012. Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa. Water SA, 38(3): 399-406. (Special edition on International Conference on Groundwater). [doi: https://doi.org/10.4314/wsa.v38i3.5]
Water balance ; Groundwater irrigation ; Resource depletion ; Smallholders ; Farmer-led irrigation ; Case studies / Ghana / Burkina Faso / South-western Niger / Atankwidi River basin / Iullemmeden Basin
(Location: IWMI HQ Call no: e-copy only Record No: H044995)
(0.50 MB)
Strategies for increasing the development and use of groundwater for agriculture over much of Sub-Saharan Africa (SSA) are urgently needed. Expansion of small-scale groundwater irrigation offers an attractive option to smallholder farmers to overcome unreliable wet-season rainfall and enhance dry-season production. This paper presents a simple, generic groundwater-balance-based methodology that uses a set of type-curves to assist with decision making on the scope for developing sustainable groundwater irrigation supplies, and to help understand how cropping choices influence the potential areal extent of irrigation. Guidance to avoid over-exploitation of the resource is also provided. The methodology is applied to 2 sites in West Africa with contrasting climatic and subsurface conditions. At both sites the analysis reveals that there is significant potential for further groundwater development for irrigation whilst allowing provisions for other sectoral uses, including basic human needs and the environment.
3 Treidel, H.; Martin-Bordes, J. L.; Gurdak, J. J. (Eds.) 2012. Climate change effects on groundwater resources: a global synthesis of findings and recommendations. Leiden, Netherlands: CRC Press. 401p.
Climate change ; Groundwater management ; Water resources ; Groundwater recharge ; Groundwater depletion ; Watersheds ; Aquifers ; Ecosystems ; Coastal area ; Land use ; Subsidence ; Catchment areas ; Case studies ; Storms ; Drought ; River basins ; Water quality ; Water storage ; Impact assessment ; Hydrology ; Sea level ; Salt water intrusion / West Africa / Asia / Uganda / Mali / Central Brazil / Bahamas / Morocco / USA / Spain / Israel / Netherlands / Canada / Argentina / China / Finland / Norway / North Andros Island / Iullemmeden Basin / Souss-Massa Basin / Murray Basin / British Columbia / Santa Fe Province / Beijing Plain / Svalbard / Niger River Basin
(Location: IWMI HQ Call no: 333.91 G000 TRE Record No: H045244)
(0.64 MB)
4 Torou, Bio Mohamadou; Favreau, G.; Barbier, B.; Pavelic, Paul; Illou, Mahamadou; Sidibe, F. 2013. Constraints and opportunities for groundwater irrigation arising from hydrologic shifts in the Iullemmeden Basin, South-Western Niger. Water International, 38(4):465-479. (Special issue on "Sustainable groundwater development for improved livelihoods in Sub-Saharan Africa, Part 1" with contributions by IWMI authors). [doi: https://doi.org/ 10.1080/02508060.2013.817042]
Groundwater irrigation ; Small scale systems ; Irrigation systems ; Water management ; Water use ; Water level ; Water table ; River basins ; Farmers ; Land use ; Social aspects ; Food security ; Income ; Households ; Non governmental organizations / South-Western Niger / Kori de Dantiandou / Iullemmeden Basin
(Location: IWMI HQ Call no: PER Record No: H046065)
(2.74 MB)
Land-use-change-induced increases in shallow groundwater levels across parts of the Sahel in recent years have coincided with expanded use of groundwater for irrigation. This study was conducted to assess the potential linkages and livelihood implications based on a field survey of nine villages building on previous hydrological studies. The results show that irrigators lack effective means of production and mostly rely on manual methods. Borehole usage is more pro table and reliable than shallower wells. Overall incomes from irrigation are relatively small and severely constrained by the limited field scale due to high establishment and operating costs.
5 Bellwood-Howard, I.; Thompson, J.; Shamsudduha, M.; Taylor, R. G.; Mosha, D. B.; Gebrezgi, Gebrehaweria; Tarimo, A. K. P. R.; Kashaigili, J. J.; Nazoumou, Y.; Tiekoura, O. 2022. A multicriteria analysis of groundwater development pathways in three river basins in Sub-Saharan Africa. Environmental Science and Policy, 138:26-43. [doi: https://doi.org/10.1016/j.envsci.2022.09.010]
Groundwater management ; River basins ; Water policies ; Water governance ; Water availability ; Large-scale farming ; Small-scale farming ; Water use ; Water users ; Multiple use ; Water quality ; Environmental sustainability ; Groundwater extraction ; Stakeholders ; Communities ; Modelling ; Uncertainty / Africa South of Sahara / Ethiopia / Niger / United Republic of Tanzania / Great Ruaha Sub-Catchment / Iullemmeden Basin / Awash Basin
(Location: IWMI HQ Call no: e-copy only Record No: H051559)
https://www.sciencedirect.com/science/article/pii/S146290112200288X/pdfft?md5=4e23255036c0e457072d97d30d062c6e&pid=1-s2.0-S146290112200288X-main.pdf
https://vlibrary.iwmi.org/pdf/H051559.pdf
https://vlibrary.iwmi.org/pdf/H051559.pdf
(10.10 MB) (10.1 MB)
Reliance on groundwater in Sub-Saharan Africa is growing and expected to rise as surface water resource variability increases under climate change. Major questions remain about how groundwater will be used, and who informs these decisions. We represent different visions of groundwater use by ‘pathways’: politically and environmentally embedded socio-technological regimes for governing and managing groundwater systems. We presented policy actors (9 sets), development and research stakeholders (4 sets), and water users (6 sets) in three river basins in Ethiopia, Niger and Tanzania with information on the social and environmental impacts of six ‘Groundwater Development Pathways’, before gathering their opinions on each, through Multicriteria Mapping (MCM). Participants preferred pathways of low-intensity use, incorporating multiple agricultural, pastoral and domestic purposes, to high-intensity single-use pathways. Water availability and environmental sustainability, including water quality, were central concerns. Participants recognised that all groundwater uses potentially impinge upon one another affecting both the quantity and quality of abstracted water. Across participant groups there was ambiguity about what the most important water use was; each expressed demands for more detailed, certain modelling data. Water users preferred community or municipal-scale management regimes, perceiving that water quality was more likely to be safeguarded by institutions at these levels, whereas policy and development actors preferred individual-scale management, viewed as more efficient in terms of operation and maintenance. We conclude that MCM, combined with more detailed modelling, can provide an effective framework for policy actors to understand other stakeholders’ perspectives on groundwater development futures, enabling equitable, inclusive decision-making and governance.
6 Pavelic, Paul; Villholth, K. G.; Verma, Shilp. (Eds.) 2023. Sustainable groundwater development for improved livelihoods in Sub-Saharan Africa. Abingdon, Oxon, UK: Routledge. 222p. (Routledge Special Issues on Water Policy and Governance)
Groundwater irrigation ; Groundwater potential ; Sustainability ; Livelihoods ; Water resources ; Water management ; Smallholders ; Farmers ; Small-scale irrigation ; Irrigated farming ; Rainfed farming ; Pumps ; Wells ; Boreholes ; Water availability ; Water balance ; Water use ; Groundwater recharge ; Aquifers ; Prediction ; Water table ; Groundwater extraction ; Water quality ; Hydrogeology ; Technology adoption ; Energy ; Institutions ; Water policies ; Water governance ; Gender ; Women ; Households ; Socioeconomic aspects ; Poverty ; Income ; Food security ; Land tenure ; Markets ; Investment ; Supply chains ; Cost benefit analysis ; Credit ; Financing ; Subsidies ; Evapotranspiration ; River basins ; Dry season ; Livestock / Africa South of Sahara / Burkina Faso / Ethiopia / Ghana / Kenya / Malawi / Mali / Mozambique / Niger / Nigeria / Rwanda / United Republic of Tanzania / Uganda / Zambia / Raya Valley / Kobo Valley / Dantiandou Valley / Volta River Basin / Iullemmeden Basin / Zalerigu / Sapeliga / Talensi-Nabdam District / Bawku West
(Location: IWMI HQ Call no: e-copy SF Record No: H052019)
(0.07 MB)
7 Torou, Bio Mohamadou; Favreau, G.; Barbier, B.; Pavelic, Paul; Illou, M.; Sidibe, F. 2023. Constraints and opportunities for groundwater irrigation arising from hydrologic shifts in the Iullemmeden Basin, South-western Niger. In Pavelic, Paul; Villholth, K. G.; Verma, Shilp. (Eds.). Sustainable groundwater development for improved livelihoods in Sub-Saharan Africa. Abingdon, Oxon, UK: Routledge. pp.201-215. (Routledge Special Issues on Water Policy and Governance)
Groundwater irrigation ; Groundwater table ; Infrastructure ; Water management ; Livelihoods ; Boreholes ; Wells ; Ponds ; Food security ; Income ; Villages / Africa South of Sahara / Niger / Iullemmeden Basin / Dantiandou Valley
(Location: IWMI HQ Call no: e-copy SF Record No: H052029)
Land-use-change-induced increases in shallow groundwater levels across parts of the Sahel in recent years have coincided with expanded use of groundwater for irrigation. This study was conducted to assess the potential linkages and livelihood implications based on a field survey of nine villages building on previous hydrological studies. The results show that irrigators lack effective means of production and mostly rely on manual methods. Borehole usage is more profitable and reliable than shallower wells. Overall incomes from irrigation are relatively small and severely constrained by the limited field scale due to high establishment and operating costs.
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