Your search found 13 records
1 Williams, Timothy O.; Taal, B-M.; Villholth, Karen; Johnston, Robyn; Giordano, Meredith. 2014. Accessing and putting water to productive use in Sub-Saharan Africa. In van der Bliek, Julie; McCornick, Peter; Clarke, James (Eds.). On target for people and planet: setting and achieving water-related sustainable development goals. Colombo, Sri Lanka: International Water Management Institute (IWMI). pp.43-45.
Water productivity ; Water use efficiency ; Agriculture ; Irrigation water ; Groundwater irrigation ; Smallholders ; Farmers ; Women ; Farmer-led irrigation ; Investment / Africa South of Sahara
(Location: IWMI HQ Call no: IWMI Record No: H046801)
http://www.iwmi.cgiar.org/Publications/Books/PDF/setting_and_achieving_water-related_sustainable_development_goals-chapter-9-accessing_and_putting_water_to_productive_use_in_sub-saharan_africa.pdf
(345 KB)

2 Mul, Marloes L.; Williams, Timothy O.; Cofie, Olufunke. 2015. Overview of the scientific, political and financial landscapes of Climate-Smart Agriculture in West Africa: sector of water resources. In Zougmore, R.; Sy Traore, A.; Mbodj, Y. (Eds.). Overview of the scientific, political and financial landscape of climate-smart agriculture in West Africa. Copenhagen, Denmark: CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS). pp.47-59. (Also in French) (CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS) Working Paper 118)
Climate change ; Adaptation ; Agriculture ; Landscape ; Water resources ; Water storage ; Groundwater recharge ; Political aspects ; Financing ; Rain ; Smallholders ; Farmers ; Investment ; Environmental sustainability ; Corporate culture / West Africa
(Location: IWMI HQ Call no: e-copy only Record No: H047077)
https://cgspace.cgiar.org/bitstream/handle/10568/67103/CCAFS_WP118_English_web.pdf
https://vlibrary.iwmi.org/pdf/H047077.pdf
(2.02 MB)

3 Mul, Marloes L.; Williams, Timothy O.; Cofie, Olufunke. 2015. Paysage scientifique, politique et financier de l’Agriculture Intelligente face au Climat (AIC) en Afrique de l’Ouest : le secteur des ressources en eau. In French. [Overview of the scientific, political and financial landscapes of Climate-Smart Agriculture in West Africa: sector of water resources]. In Zougmore, R.; Sy Traore, A.; Mbodj, Y. (Eds.). Paysage scientifique, politique et financier de l’Agriculture Intelligente face au Climat en Afrique de l’Ouest. Copenhagen, Denmark: CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS) pp.47-59. (Also in English) (CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS) Working Paper 118)
Climate change ; Adaptation ; Agriculture ; Landscape ; Water resources ; Water storage ; Groundwater recharge ; Political aspects ; Financing ; Rain ; Smallholders ; Farmers ; Investment ; Environmental sustainability ; Corporate culture / West Africa
(Location: IWMI HQ Call no: e-copy only Record No: H047078)
https://cgspace.cgiar.org/bitstream/handle/10568/67104/CCAFS_WP118_Fran%C3%A7ais_web.pdf?sequence=1
https://vlibrary.iwmi.org/pdf/H047078.pdf
(2.02 MB)

4 Sidibe, Y.; Williams, Timothy O.. 2016. Agricultural land investments and water management in the office du Niger, Mali: options for improved water pricing. Water International, 41(5):738-755. [doi: https://doi.org/10.1080/02508060.2016.1178900]
Agriculture ; Farmland ; Land investments ; Water management ; Water rates ; Water scarcity ; Water availability ; Equity ; Environmental flows ; Agricultural production ; Rural areas ; Living standards ; Natural resources ; Farmers / Mali / Niger
(Location: IWMI HQ Call no: e-copy only Record No: H047617)
http://www.tandfonline.com/doi/pdf/10.1080/02508060.2016.1178900
https://vlibrary.iwmi.org/pdf/H047617.pdf
(1.80 MB)
Large-scale agricultural land investments in Africa are often considered solely from the land perspective. Yet land, water and other natural resources are closely interlinked in agricultural production and in sustaining rural livelihoods. Such investments involving irrigation will potentially have implications for water availability and utilization by other users, making it imperative to regard water as an economic rather than a free good. Focusing on a vast irrigable area in Mali with recent large-scale investments, a bio-economic model was used to demonstrate that an improved water valuation system is needed to balance different water users’ needs while ensuring adequate environmental flow.

5 Kolavalli, S.; Williams, Timothy O.. 2016. Socioeconomic trends and drivers of change. In Williams, Timothy O.; Mul, Marloes L.; Biney, C. A.; Smakhtin, Vladimir (Eds.). The Volta River Basin: water for food, economic growth and environment. Oxon, UK: Routledge - Earthscan. pp.13-30.
Socioeconomic development ; Population growth ; Urbanization ; River basin development ; Economic development ; Poverty ; Agricultural production ; Crops ; Food security ; Food consumption ; Food policy ; Nutritional status ; Riparian zones ; Smallholders / West Africa / Benin / Burkina Faso / Ivory Coast / Ghana / Mali / Togo / Volta River Basin
(Location: IWMI HQ Call no: IWMI Record No: H047722)

6 Williams, Timothy O.; Mul, Marloes L.; Biney, C. A.; Smakhtin, Vladimir. 2016. Introduction. In Williams, Timothy O.; Mul, Marloes L.; Biney, C. A.; Smakhtin, Vladimir (Eds.). The Volta River Basin: water for food, economic growth and environment. Oxon, UK: Routledge - Earthscan. pp.3-9.
River basin management ; Riparian zones ; Energy generation ; Water power ; Water resources ; Groundwater ; Gender ; Sustainable agriculture ; Crops ; Food security ; Poverty ; Economic growth / West Africa / Benin / Burkina Faso / Ivory Coast / Ghana / Mali / Togo / Volta River Basin
(Location: IWMI HQ Call no: IWMI Record No: H047721)

7 Williams, Timothy O.; Barron, Jennie; Cofie, Olufunke. 2016. Sustainable agricultural intensification in the Volta River Basin. In Williams, Timothy O.; Mul, Marloes L.; Biney, C. A.; Smakhtin, Vladimir (Eds.). The Volta River Basin: water for food, economic growth and environment. Oxon, UK: Routledge - Earthscan. pp.228-241.
Sustainable agriculture ; Intensification ; River basins ; Farming systems ; Rainfed farming ; Agroforestry ; Cereal products ; Maize ; Millets ; Land degradation ; Smallholders ; Ecosystems ; Investment ; Public sector ; Private sector ; Soil conservation ; Water conservation ; Fertilizers / West Africa / Benin / Burkina Faso / Ivory Coast / Ghana / Mali / Togo / Volta River Basin
(Location: IWMI HQ Call no: IWMI Record No: H047735)

8 Williams, Timothy O.; Mul, Marloes L.; Biney, C. A.; Smakhtin, Vladimir. (Eds.) 2016. The Volta River Basin: water for food, economic growth and environment. Oxon, UK: Routledge - Earthscan. 281p. (Earthscan Series on Major River Basins of the World)
River basin management ; Economic growth ; Water resources ; Water governance ; Water use ; Water power ; Water quality ; Water balance ; Water scarcity ; Water availability ; Water policy ; Surface water ; Groundwater ; Drinking water ; International waters ; Wastewater treatment ; Domestic consumption ; Industrial uses ; Climate change ; Flood control ; Drought ; Socioeconomic environment ; Poverty ; Living standards ; Food security ; Sustainable agriculture ; Agricultural development ; Crops ; Urban development ; Industrial development ; Ecosystem services ; Environmental flows ; Public health ; Intensification ; Population density ; Economic aspects ; Farmland ; Food composition ; Riparian zones ; Meteorological stations ; Infrastructure ; Gender ; Legislation ; Energy generation ; Dams ; Global warming ; Emission ; Land use ; Land cover change ; Case studies / West Africa / Benin / Burkina Faso / Ivory Coast / Ghana / Mali / Togo / Volta River Basin
(Location: IWMI HQ Call no: IWMI Record No: H047720)

9 Williams, Timothy O.; Mul, Marloes; Cofie, Olufunke; Kinyangi, J.; Zougmore, R.; Wamukoya, G.; Nyasimi, M.; Mapfumo, P.; Speranza, C. I.; Amwata, D.; Frid-Nielsen, S.; Partey, S.; Girvetz, E.; Rosenstock, T.; Campbell, B. 2015. Climate smart agriculture in the African context. Background Paper. Paper presented at the Feeding Africa - An Action Plan for African Agricultural Transformation. Session 1: Unlocking Africa’s Agricultural Potentials for Transformation to Scale, Dakar, Senegal, 21-23 October 2015. 26p.
Agriculture ; Climate change ; Food security ; Poverty ; Smallholders ; Farmers ; Ecosystems ; Economic aspects ; Sustainable development ; Investment ; Socioeconomic environment ; Gender ; Women ; Youth ; Empowerment ; Financing ; Policy making / Africa
(Location: IWMI HQ Call no: e-copy only Record No: H048252)
http://www.worldagroforestry.org/downloads/Publications/PDFS/WP16087.pdf
https://vlibrary.iwmi.org/pdf/H048252.pdf

10 Erkossa, Teklu; Williams, Timothy O.; Laekemariam, F. 2018. Integrated soil, water and agronomic management effects on crop productivity and selected soil properties in Western Ethiopia. International Soil and Water Conservation Research, 6(4): 305-316. [doi: https://doi.org/10.1016/j.iswcr.2018.06.001]
Soil management ; Soil properties ; Soil moisture ; Soil sampling ; Water management ; Agronomic practices ; Crop production ; Productivity ; Land degradation ; Intercropping ; Crop yield ; Fertilizers ; Farming systems ; Farmers ; Soil chemical properties / Ethiopia / Oromia Region / Jeldu / Diga
(Location: IWMI HQ Call no: e-copy only Record No: H048870)
https://reader.elsevier.com/reader/sd/52FCA3E143E488624EE6ACB459F4566E1812A259009A2E4B5EA574F5AEAC285CD0B1DAF4D7C9C1143C0A1B82924EE6FC
https://vlibrary.iwmi.org/pdf/H048870.pdf
Land degradation is a major challenge limiting crop production in Ethiopia. Integrated soil and water conservation is widely applied as a means to reverse the trend and increase productivity. This study investigated the effects of such integrated approaches at two sites, Jeldu and Diga, in Western Ethiopia. A split plot design with physical soil and water conservation in the main plots and agronomic practices in the sub plots was employed. Maize (Zea mays L.) followed by groundnut (Arachis hypogaea L.) at Diga, and wheat (Triticum aestivum) followed by faba bean (Vicia faba L.) were the test crops. Surface soils were sampled before sowing and after the crop harvest, and analyzed for selected parameters. Soil moisture content during the growing period was also monitored. The use of soil bund increased soil moisture content, and significantly (P < 0.05) increased days to flowering and maturity, kernel weight and harvest index, grain yield of the test crops, with the exception of maize. The improved agronomic practices (intercropping, fertilization and row planting) significantly (P < 0.05) increased grain yield of all the test crops. The effect of the treatments on soil parameters may require longer time to be evident. Although the increase in crop yield due to soil bund and the improved agronomic practices is eminent, economic analysis is necessary before recommending the widespread use of the improved options.

11 Williams, Timothy O.. 2019. Managing water for food and agricultural transformation in Africa: key issues and priorities. In Allan, T.; Bromwich, B.; Keulertz, M.; Colman, A. (Eds.). The Oxford handbook of food, water and society. New York, NY, USA: Oxford University Press. pp.470-487.
Water management ; Integrated management ; Agrifood systems ; Agricultural productivity ; Rainfed farming ; Irrigated farming ; Climate change ; Food prices ; Imports ; Irrigation water ; Food security ; Nutrition security ; Population growth ; Urbanization / Africa South of Sahara
(Location: IWMI HQ Call no: 333.91 G000 ALL Record No: H049503)
https://vlibrary.iwmi.org/pdf/H049503.pdf
(3.24 MB)

12 Erkossa, Teklu; Geleti, D.; Williams, Timothy O.; Laekemariam, F.; Haileslassie, Amare. 2022. Restoration of grazing land to increase biomass production and improve soil properties in the Blue Nile Basin: effects of infiltration trenches and Chloris gayana reseeding. Renewable Agriculture and Food Systems, 37(S1):S64-S72. (Special issue: Restoring Degraded Landscapes and Fragile Food Systems) [doi: https://doi.org/10.1017/S1742170519000425]
Land restoration ; Grazing lands ; Biomass production ; Soil properties ; Chloris gayana ; Trenches ; Resowing ; Soil conservation ; Water conservation ; Soil water content ; Soil quality ; Soil chemical properties ; Farmers ; Innovation platforms / Ethiopia / Blue Nile Basin
(Location: IWMI HQ Call no: e-copy only Record No: H049501)
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/EF93585DCF6E543CEA679E80E1AF381A/S1742170519000425a.pdf/restoration_of_grazing_land_to_increase_biomass_production_and_improve_soil_properties_in_the_blue_nile_basin_effects_of_infiltration_trenches_and_chloris_gayana_reseeding.pdf
https://vlibrary.iwmi.org/pdf/H049501.pdf
(0.54 MB) (552 KB)
Degradation of crop and grazing lands is a pervasive problem that negatively impacts agricultural productivity and livelihoods of crop-livestock farmers in the Blue Nile basin of Ethiopia. Area enclosure together with a cut and carry livestock feeding system is often advocated as an approach for the regeneration of degraded grazing lands. This paper reports the results of a two-year farmer participatory study conducted to assess the effects of infiltration trenches (ITs) and Chloris gayana Kunth (Rhodes grass; cultivar Masaba; tetraploid; C4 grass species) reseeding on restoration of degraded grazing lands. A split plot design was used with IT as the main plot and C. gayana reseeding as a sub-plot on 28 private grazing plots under enclosure. The results showed that IT alone increased soil moisture content and prolonged the growing period. IT and C. gayana reseeding together significantly (P = 0.05) increased herbage dry matter yield and improved soil chemical properties. The highest mean herbage dry matter yield (21 Mg ha-1 per cut) was recorded for plots treated with IT and reseeded with C. gayana. The higher herbage dry matter yield was attributed to increased soil moisture and the resultant prolonged growing period induced by the trenches coupled with the ability of C. gayana to effectively utilize the retained water. The results suggest that an integrated land management approach involving enclosure, in-situ water conservation and C. gayana reseeding can rapidly increase biomass productivity on degraded grazing lands while also enhancing soil quality with concomitant livelihood benefits for farmers.

13 Hanjra, Munir A.; Williams, Timothy O.. 2020. Global change and investments in smallholder irrigation for food and nutrition security in Sub-Saharan Africa. In Gomez y Paloma, S.; Riesgo, L.; Louhichi, K. (Eds.). The role of smallholder farms in food and nutrition security. Cham, Switzerland: Springer. pp.99-131. [doi: https://doi.org/10.1007/978-3-030-42148-9_6]
Food security ; Nutrition security ; Smallholders ; Irrigation schemes ; Public investment ; Rural urban relations ; Urban agriculture ; Peri-urban agriculture ; Intensification ; Small scale systems ; Poverty ; Business models ; Public-private partnerships ; Wastewater irrigation ; Water reuse ; Water policy ; Solar energy ; Surface water ; Groundwater development ; Sustainability / Africa South of Sahara / West Africa / East Africa / Southern Africa / South Africa / Zimbabwe / United Republic of Tanzania
(Location: IWMI HQ Call no: e-copy only Record No: H049733)
https://link.springer.com/content/pdf/10.1007%2F978-3-030-42148-9_6.pdf
https://vlibrary.iwmi.org/pdf/H049733.pdf
(0.63 MB) (640 KB)
Investments in irrigation contribute to poverty reduction and enhance food security. This paper considers irrigation investments more broadly in the context of rural–urban linkages and thus examines rural irrigation schemes and peri-urban and urban agriculture using freshwater, groundwater and wastewater. We present case studies from East, West and Southern Africa, while focusing on the imperative of smallholders and of food security and nutrition. Evidence from Big Data and telecoupling show that, amid global change and sustainability issues, irrigation development strengthens connections between humans and nature with notable benefits to food security. Transforming investments to feed the future generation require priority investments in irrigation, solar energy for groundwater pumping, groundwater development policy, and integration of peri-urban and urban agriculture into food systems. Equally important will be no-regret interventions in wastewater reuse, water storage and groundwater buffer, micro-irrigation, and wholesale reconfiguration of farming systems, through anticipatory investments, to safeguard food security and sustainability into the distant future.

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