Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa
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-se...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
African Journals Online
2012
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/34597 |
| _version_ | 1855520251036303360 |
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| author | Pavelic, Paul Smakhtin, Vladimir U. Favreau, G. Villholth, Karen G. |
| author_browse | Favreau, G. Pavelic, Paul Smakhtin, Vladimir U. Villholth, Karen G. |
| author_facet | Pavelic, Paul Smakhtin, Vladimir U. Favreau, G. Villholth, Karen G. |
| author_sort | Pavelic, Paul |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | 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. |
| format | Journal Article |
| id | CGSpace34597 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | African Journals Online |
| publisherStr | African Journals Online |
| record_format | dspace |
| spelling | CGSpace345972024-05-08T13:21:14Z Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa Pavelic, Paul Smakhtin, Vladimir U. Favreau, G. Villholth, Karen G. water balance groundwater irrigation groundwater assessment resource depletion smallholders decision making choice of species farmer-led irrigation groundwater irrigation case studies 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. 2012 2013-11-21T05:04:48Z 2014-02-02T16:39:50Z 2013-11-21T05:04:48Z 2014-02-02T16:39:50Z Journal Article https://hdl.handle.net/10568/34597 en Open Access African Journals Online Pavelic, P., Smakhtin, V., Favreau, G., & Villholth, K. (2012). Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa. Water SA, 38(3). https://doi.org/10.4314/wsa.v38i3.5 |
| spellingShingle | water balance groundwater irrigation groundwater assessment resource depletion smallholders decision making choice of species farmer-led irrigation groundwater irrigation case studies Pavelic, Paul Smakhtin, Vladimir U. Favreau, G. Villholth, Karen G. Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa |
| title | Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa |
| title_full | Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa |
| title_fullStr | Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa |
| title_full_unstemmed | Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa |
| title_short | Water-balance approach for assessing potential for smallholder groundwater irrigation in Sub-Saharan Africa |
| title_sort | water balance approach for assessing potential for smallholder groundwater irrigation in sub saharan africa |
| topic | water balance groundwater irrigation groundwater assessment resource depletion smallholders decision making choice of species farmer-led irrigation groundwater irrigation case studies |
| url | https://hdl.handle.net/10568/34597 |
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