Your search found 12 records
1 Keller, A.; Keller, J.; Seckler, D. 1996. Integrated water resource systems: theory and policy implications. Colombo, Sri Lanka: International Irrigation Management Institute (IIMI). iii, 15p. (IWMI Research Report 003 / IIMI Research Report 003) [doi: https://doi.org/10.3910/2009.004]
Water resource management ; Water policy ; Irrigation efficiency ; Water demand ; Leaching ; Water use efficiency ; Water supply ; Evapotranspiration ; Models ; Water conservation
(Location: IWMI-HQ Call no: IIMI 631.7.8 G000 KEL Record No: H018208)
(307KB)
Presents the concept of integrated water resources systems (IWS) as clearly and simply as possible, with a focus on the irrigation sector-the largest and most complex user of water.
2 Keller, J.; Keller, A.; Davids, G.; El Kady, M. 1996. Conserving Egypt's Nile waters: an overview of strategies for estimating and capturing potential and waste water conservation savings. Research report of the Water Resources Strategic Research Activity (WRSR). Cairo, Egypt: National Water Research Center. Ministry of Public Works; USAID. 10p. (WRSR Publication Series No.23)
Water management ; Water resources ; Water conservation ; Wastewater ; Irrigation water ; Rivers / Egypt / Nile River
(Location: IWMI-HQ Call no: P 4355 Record No: H019466)
3 Keller, J.; Keller, A.; Davids, G. 1998. River basin development phases and implications of closure. Journal of Applied Irrigation Science, 33(2):145-163.
(Location: IWMI-HQ Call no: P 4947 Record No: H023298)
(1.24 MB)
4 Keller, A.; Sakthivadivel, R.; Seckler, D. 2000. Water scarcity and the role of storage in development. Colombo, Sri Lanka: International Water Management Institute (IWMI). v, 16p. (IWMI Research Report 039) [doi: https://doi.org/10.3910/2009.046]
Groundwater ; Water storage ; Water scarcity ; Reservoir storage ; Costs ; Aquifers ; Conjunctive use ; River basins ; Surface water ; Dams / India / China / USA
(Location: IWMI-HQ Call no: IIMI 333.91 G000 KEL Record No: H026190)
(179KB)
Of the four major ways of storing water —in the soil profile, in underground aquifers, in small reservoirs, and in large reservoirs behind dams—the first is possible only for relatively short periods of time. In this paper, the authors concentrate on the three kinds of long-term technologies, and compare the hydrological, operational, economic and environmental aspects of each.
5 Rosegrant, M. W.; Ringler, C.; McKinney, D. C.; Cai, X.; Keller, A.; Donoso, G. 2000. Integrated economic-hydrologic water modeling at the basin scale: The Maipo River Basin. Agricultural Economics., 24:33-46.
River basins ; Hydrology ; Models ; Water policy ; Water market ; Water allocation ; Water use efficiency ; Water supply ; Irrigation management ; Electricity supplies ; Economic analysis / Chile / Maipo River Basin
(Location: IWMI-HQ Call no: P 5552, IWMI 631.7.1 G516 ROS Record No: H027342)
6 Keller, A.; Sakthivadivel, R.; Seckler, D. 2001. Matching available water with optimal storage strategies. Wastelands News, 16(2):21-22.
(Location: IWMI-HQ Call no: P 6286, IIMI 628.1 G635 KEL Record No: H027582)
7 Keller, J.; Keller, A.; Davids, G. 1998. River basin development phases and implications of closure. Journal of Applied Irrigation Science, 33(2):145-163.
River basin development ; Water supply ; Water conservation ; Irrigation efficiency ; Water use efficiency
(Location: IWMI-HQ Call no: P 7607 Record No: H039247)
8 Weight, Elizabeth; Yoder, R.; Keller, A.. 2012. Manual well drilling investment opportunity in Ethiopia. Colombo, Sri Lanka: International Water Management Institute (IWMI). AgWater Solutions Project (Agricultural Water Solutions Project). 17p.
Wells ; Drilling ; Investment ; Poverty ; Crop production ; Income ; Farmer-led irrigation ; Private sector / Ethiopia
(Location: IWMI HQ Call no: e-copy only Record No: H045069)
(582.06KB)
9 Weight, Elizabeth; Yoder, R.; Keller, A.. 2013. Manual well drilling investment opportunity in Ethiopia. Colombo, Sri Lanka: International Water Management Institute (IWMI). 25p. (Also in French) (IWMI Working Paper 155) [doi: https://doi.org/10.5337/2013.210]
Wells ; Drilling ; Pumps ; Investment ; Private sector ; Models ; Farmers ; Groundwater resources ; Crop production ; Farmer-led irrigation ; Irrigated farming / Ethiopia
(Location: IWMI HQ Call no: IWMI Record No: H046117)
(1.1MB)
Increasing female and male farmers’ access to groundwater can contribute to increased incomes, improved food security and improved access to water for livestock and domestic needs. In many contexts, private sector manual well drilling is a reliable and affordable means to access shallow groundwater, but it is not widely available in Ethiopia. Data, information and mapping on pilot manual well drilling efforts in selected areas of Ethiopia indicated that the technique provided affordable access to shallow groundwater for farmers and demonstrated high demand among farmers for manually drilled wells, as well as profitability for drilling businesses. The authors of this paper suggest that investments in creating a spatial database of hydrogeologic suitability domains, investments in driller training, and associated investments in accelerating the drilling industry could catalyze a manual well drilling industry and significantly improve smallholder farmers’ affordable access to shallow groundwater.
10 Weight, Elizabeth; Yoder, R.; Keller, A.. 2013. Opportunites d’investissement dans le forage manuel de puits en Ethiopie. In French. [Manual well drilling investment opportunity in Ethiopia]. Colombo, Sri Lanka: International Water Management Institute (IWMI). 29p. (Also in English). (IWMI Working Paper 155 / Document de travail IWMI 155) [doi: https://doi.org/10.5337/2013.212]
Wells ; Drilling ; Pumps ; Investment ; Private sector ; Models ; Farmers ; Groundwater resources ; Crop production ; Farmer-led irrigation ; Irrigated farming / Ethiopia
(Location: IWMI HQ Call no: IWMI Record No: H046432)
En ameliorant l’acces des agriculteurs et agricultrices aux eaux souterraines, il est possible de contribuer a un accroissement de leurs revenus, a une augmentation de leur securite alimentaire et a une amelioration de leur acces a l’eau pour leurs besoins domestiques et ceux de leur betail. Dans de nombreux contextes, le forage manuel de puits initie par le secteur prive est un moyen fiable et abordable d’acceder aux eaux souterraines peu profondes, mais il est peu repandu en Ethiopie. Les donnees, informations et cartes realisees pour des operations pilotes de forage manuel de puits dans des zones ciblees d’Ethiopie ont indique que la technique permettait aux agriculteurs d’acceder aux eaux souterraines peu profondes a un cout abordable et demontre une forte demande des agriculteurs pour des puits fores manuellement, ainsi qu’une bonne profitabilite pour les entreprises de forage. Les auteurs de cet article suggerent que l’investissement dans la creation d’une base de donnees spatiales des zones favorables sur le plan hydrogeologique et dans des formations en forage, ainsi que des investissements connexes dans la dynamisation des activites de forage, pourraient catalyser l’industrie du forage manuel de puits et ameliorer considerablement les possibilites d’un acces abordable des petits exploitants agricoles aux eaux souterraines peu profondes.
11 Keller, A.; Weight, Elizabeth; Taylor, S. 2013. Rapid assessment of water availability and appropriate technologies for small-scale farming: guidelines for practitioners. Colombo, Sri Lanka: International Water Management Institute (IWMI). 61p. (IWMI Working Paper 156) [doi: https://doi.org/10.5337/2014.207]
Water availability ; Small scale farming ; Agriculture ; Water management ; Groundwater ; Water resources ; Gender ; Farmers ; Pumps ; Wells ; Drilling ; Reservoirs ; Rivers ; Irrigation ; Soils ; Living standards ; Public sector ; Private sector ; Non governmental organizations ; Poverty ; Data collection ; Guidelines ; Technology assessment ; Farmer-led irrigation ; Case studies / Ghana
(Location: IWMI HQ Call no: IWMI Record No: H046752)
Limited access to water is a key reason why millions of poor farmers struggle to grow enough food and marketable crops to improve their lives. Public sector agencies, civil society organizations and donors seeking to improve small-scale farmers’ access to water resources face limited data on the location and accessibility of water resources. This paper addresses this gap by providing a tested method to assess water resources that small-scale farmers can access affordably and sustainably. This paper also supports the selection of appropriate water access and application technologies for available water resources. The method described is rapid and relatively inexpensive; it uses a phased approach to assess a broad-scale area (e.g., a country or region); and then gathers more information in locations that have higher potential for affordable water access by small-scale farmers.
12 Keller, A.; Weight, Elizabeth; Taylor, S. 2013. Evaluation rapide de la disponibilite en eau et des technologies appropriees pour la petite agriculture: directives pour les acteurs de terrain. In French. [Rapid assessment of water availability and appropriate technologies for small-scale farming: guidelines for practitioners]. Colombo, Sri Lanka: International Water Management Institute (IWMI). 64p. (Also in English) (IWMI Working Paper 156 / Document de travail IWMI 156) [doi: https://doi.org/10.5337/2014.227]
Water availability ; Small scale farming ; Agriculture ; Water management ; Groundwater ; Water resources ; Gender ; Farmers ; Pumps ; Wells ; Drilling ; Reservoirs ; Rivers ; Irrigation ; Soils ; Living standards ; Public sector ; Private sector ; Non governmental organizations ; Poverty ; Data collection ; Guidelines ; Technology assessment ; Farmer-led irrigation ; Case studies / Ghana
(Location: IWMI HQ Call no: IWMI Record No: H046776)
(2 MB)
Les restrictions sur l’acces a l’eau sont la principale raison des difficultes qu’eprouvent des millions d’agriculteurs pauvres a faire pousser suffisamment de cultures alimentaires et commerciales pour ameliorer leurs conditions de vie. Les organismes du secteur prive, les organisations de la societe civile et les bailleurs de fonds qui cherchent a ameliorer l’acces des petits agriculteurs aux ressources en eau sont confrontes a une insuffisance des donnees sur l’emplacement et l’accessibilite des ressources en eau. Cet article comble cette lacune en proposant une methode eprouvee d’evaluation des ressources en eau auxquelles les petits agriculteurs pourraient acceder de maniere durable et abordable. Il facilite egalement le choix de technologies appropriees pour acceder aux ressources en eau disponibles et les appliquer. La methode decrite est rapide et relativement peu onereuse, elle se fonde sur une approche progressive pour l’evaluation d’une zone a grande echelle (ex.: un pays ou une region), puis rassemble davantage d’informations sur les emplacements les plus favorables a un acces abordable a l’eau pour les petits agriculteurs.
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