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Journal Article 2007

Autor: Villholth, Karen G.

Most households in the districts of Sri Lanka affected by the tsunami possessed drinking water wells, and these wells were contaminated by debris, sludge and saltwater. Once the wells were cleaned, only time and the onset of monsoon rains could reduce the levels of salinity - but local people con...

Enlace original: https://cgspace.cgiar.org/handle/10568/40906

Investigación en Agricultura
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Villholth, Karen G. ,  [Tsunami impacts on groundwater and water supply in eastern Sri Lanka] ,  Tsunami impacts on groundwater and water supply in eastern Sri Lanka
Journal Article 2013

Autor: Gebregziabher, Gebrehaweria Villholth, Karen G. Hanjra, Munir A. Yirga, M. Namara, Regassa E.

The government of Ethiopia has invested in groundwater development for smallholder irrigation in the Raya Valley and Kobo Valley, north-eastern Ethiopia, where the hydrogeological potential is large but not fully developed. A cost-benefit analysis shows that investment in deep groundwater irrigat...

Enlace original: https://cgspace.cgiar.org/handle/10568/41773

Investigación en Agricultura
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Gebregziabher, Gebrehaweria ,  Villholth, Karen G. ,  Hanjra, Munir A. ,  Yirga, M. ,  Namara, Regassa E. ,  [Cost-benefit analysis and ideas for cost sharing of groundwater irrigation: evidence from north-eastern Ethiopia] ,  Cost-benefit analysis and ideas for cost sharing of groundwater irrigation: evidence from north-eastern Ethiopia
Journal Article 2013

Autor: Villholth, Karen G.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/72515

Investigación en Agricultura
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Villholth, Karen G. ,  [Groundwater irrigation for smallholders in Sub-Saharan Africa – a synthesis of current knowledge to guide sustainable outcomes] ,  Groundwater irrigation for smallholders in Sub-Saharan Africa – a synthesis of current knowledge to guide sustainable outcomes
Journal Article 2016

Autor: Frija, Aymen Dhehibi, B. Chebil, A. Villholth, Karen G.

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 ...

Enlace original: https://cgspace.cgiar.org/handle/10568/76241

Investigación en Agricultura
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Frija, Aymen ,  Dhehibi, B. ,  Chebil, A. ,  Villholth, Karen G. ,  [Performance evaluation of groundwater management instruments: the case of irrigation sector in Tunisia] ,  Performance evaluation of groundwater management instruments: the case of irrigation sector in Tunisia
Journal Article 2019-03-29

Autor: Kolusu, S.R. Shamsudduha, M. Todd, Martin C. Taylor, R.G. Seddon, D. Kashaigili, J.J. Ebrahim, Girma Yimer Cuthbert, M.O. Sorensen, J.P.R. Villholth, Karen G. MacDonald, Alan M. Macleod, D.A.

The impact of climate variability on groundwater storage has received limited attention despite widespread dependence on groundwater as a resource for drinking water, agriculture and industry. Here, we assess the climate anomalies that occurred over Southern Africa (SA) and East Africa, south of ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101280

Investigación en Agricultura
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Kolusu, S.R. ,  Shamsudduha, M. ,  Todd, Martin C. ,  Taylor, R.G. ,  Seddon, D. ,  Kashaigili, J.J. ,  Ebrahim, Girma Yimer ,  Cuthbert, M.O. ,  Sorensen, J.P.R. ,  Villholth, Karen G. ,  MacDonald, Alan M. ,  Macleod, D.A. ,  [The El Nino event of 2015-2016: climate anomalies and their impact on groundwater resources in East and Southern Africa] ,  The El Nino event of 2015-2016: climate anomalies and their impact on groundwater resources in East and Southern Africa
Journal Article 2019-03-27

Autor: Ebrahim, Girma Yimer Villholth, Karen G. Boulos, M.

An integrated hydrogeological modelling approach applicable to hard-rock aquifers in semi-arid data-scarce Africa was developed using remote sensing, rainfall-runoff modelling, and a three-dimensional (3D) dynamic model. The integrated modelling approach was applied to the Hout catchment, Limpopo...

Enlace original: https://cgspace.cgiar.org/handle/10568/101281

Investigación en Agricultura
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Ebrahim, Girma Yimer ,  Villholth, Karen G. ,  Boulos, M. ,  [Integrated hydrogeological modelling of hard-rock semi-arid terrain: supporting sustainable agricultural groundwater use in Hout catchment, Limpopo Province, South Africa] ,  Integrated hydrogeological modelling of hard-rock semi-arid terrain: supporting sustainable agricultural groundwater use in Hout catchment, Limpopo Province, South Africa
Journal Article 2012

Autor: Pavelic, Paul Smakhtin, Vladimir U. Favreau, G. Villholth, Karen G.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/34597

Investigación en Agricultura
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Pavelic, Paul ,  Smakhtin, Vladimir U. ,  Favreau, G. ,  Villholth, Karen G. ,  [Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa.] ,  Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa.
Journal Article 2013

Autor: Villholth, Karen G.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/40323

Investigación en Agricultura
Enlace permanente
Villholth, Karen G. ,  [Groundwater irrigation for smallholders in Sub-Saharan Africa - a synthesis of current knowledge to guide sustainable outcomes] ,  Groundwater irrigation for smallholders in Sub-Saharan Africa - a synthesis of current knowledge to guide sustainable outcomes
Journal Article 2013

Autor: Villholth, Karen G. Tottrup, C. Stendel, M. Maherry, A.

Groundwater drought denotes the condition and hazard during a prolonged meteorological drought when groundwater resources decline and become unavailable or inaccessible for human use. Groundwater drought risk refers to the combined physical risk and human vulnerability associated with diminished ...

Enlace original: https://cgspace.cgiar.org/handle/10568/40325

Investigación en Agricultura
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Villholth, Karen G. ,  Tottrup, C. ,  Stendel, M. ,  Maherry, A. ,  [Integrated mapping of groundwater drought risk in the Southern African Development Community (SADC) Region] ,  Integrated mapping of groundwater drought risk in the Southern African Development Community (SADC) Region

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