Groundwater irrigation for smallholder farmers in Sub-Saharan Africa is growing in extent and importance. This growth is primarily driven spontaneously by the farmers themselves, spurred by improved access to low-cost technologies for pumps and drilling services as well as market opportunities fo...
Villholth, Karen G.
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[Groundwater irrigation for smallholders in Sub-Saharan Africa – a synthesis of current knowledge to guide sustainable outcomes]
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Groundwater irrigation for smallholders in Sub-Saharan Africa – a synthesis of current knowledge to guide sustainable outcomes
Around 27% of aquifers in Tunisia are being overexploited. Groundwater extractions is mainly for the irrigation sector, where more than 40% of the water used for irrigation comes from GW sources. The objective of this study is to critically review and analyze GW management instruments adopted in ...
Frija, Aymen
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Dhehibi, B.
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Chebil, A.
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Villholth, Karen G.
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[Performance evaluation of groundwater management instruments: the case of irrigation sector in Tunisia]
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Performance evaluation of groundwater management instruments: the case of irrigation sector in Tunisia
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...
Pavelic, Paul
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Smakhtin, Vladimir U.
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Favreau, G.
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Villholth, Karen G.
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[Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa.]
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Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa.
Cooperative management of transboundary river basins is widely recognized as important. Emphasis on joint management of shared aquifers has also grown in recent years. Perhaps surprisingly, despite abundant focus on transboundary surface water and growing focus on shared groundwater, there is sca...
Lautze, Jonathan
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Holmatov, B.
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Saruchera, D.
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Villholth, Karen G.
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[Conjunctive management of surface and groundwater in transboundary watercourses: a first assessment]
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Conjunctive management of surface and groundwater in transboundary watercourses: a first assessment
Groundwater quantity and quality may be affected by climate change through intricate direct and indirect mechanisms. At the same time, population growth and rapid urbanization have made groundwater an increasingly important source of water for multiple uses around the world, including southern Af...
McGill, B.M.
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Altchenko, Yvan
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Hamilton, S.K.
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Kenabatho, P.K.
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Sylvester, S.R.
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Villholth, Karen G.
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[Complex interactions between climate change, sanitation, and groundwater quality: a case study from Ramotswa, Botswana]
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Complex interactions between climate change, sanitation, and groundwater quality: a case study from Ramotswa, Botswana
Denmark is making continuous efforts to attain sustainable groundwater management. With groundwater constituting virtually the only resource for all water uses, groundwater management was addressed early on and has progressed over the last century. This article gives an overview of the advances, ...
Jorgensen, L.F.
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Villholth, Karen G.
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Refsgaard, J.C.
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[Groundwater management and protection in Denmark: a review of pre-conditions, advances and challenges]
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Groundwater management and protection in Denmark: a review of pre-conditions, advances and challenges
Study region : Transboundary aquifers (TBAs) of Africa.
Study focus: Review of work on TBAs in Africa, including an overview of assessments and management efforts that have taken place over the last half century.
New hydrological insights : Seventy-two TBAs have been mapped in Africa. They underl...
Nijstena, G-J.
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Christelis, G.
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Villholth, Karen G.
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Braune, E.
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Gaye, B.C.
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[Transboundary aquifers of Africa: Review of the current state of knowledge and progress towards sustainable development and management]
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Transboundary aquifers of Africa: Review of the current state of knowledge and progress towards sustainable development and management