Farmers' adaptation and regional land use changes in irrigation systems under fluctuating water supply, South India
In closing river basins where nearly all available water is committed to existing uses, downstream irrigation projects are expected to experience water shortages more frequently. Understanding the scope for resilience and adaptation of large surface irrigation systems is vital to the development of...
| Autores principales: | , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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American Society of Civil Engineers
2010
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| Acceso en línea: | https://hdl.handle.net/10568/40549 |
| _version_ | 1855525089596932096 |
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| author | Venot, Jean-Philippe Jella, Kiran Bharati, Luna George, B. Biggs, Trent W. Gangadhara Rao, Parthasaradhi Gumma, Murali K. Acharya, Sreedhar |
| author_browse | Acharya, Sreedhar Bharati, Luna Biggs, Trent W. Gangadhara Rao, Parthasaradhi George, B. Gumma, Murali K. Jella, Kiran Venot, Jean-Philippe |
| author_facet | Venot, Jean-Philippe Jella, Kiran Bharati, Luna George, B. Biggs, Trent W. Gangadhara Rao, Parthasaradhi Gumma, Murali K. Acharya, Sreedhar |
| author_sort | Venot, Jean-Philippe |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | In closing river basins where nearly all available water is committed to existing uses, downstream irrigation projects are expected to experience water shortages more frequently. Understanding the scope for resilience and adaptation of large surface irrigation systems is vital to the development of management strategies designed to mitigate the impact of river basin closure on food production and the livelihoods of farmers. A multi-level analysis (farm level surveys and regional assessment through remote sensing techniques and statistics) of the dynamics of irrigation and land use in the Nagarjuna Sagar project (South India) in times of changing water availability (2000-2006) highlights that during low flow years, there is large-scale adoption of rainfed ?or supplementary irrigated- crops that have lower land productivity but higher water productivity, and that a large fraction of land is fallowed. Cropping pattern changes during the drought reveal short term coping strategies rather than long-term evolutions: after the shock, farmers reverted to their usual cropping patterns during years with adequate canal supplies. For the sequence of water supply fluctuations observed from 2000-2006, the Nagarjuna Sagar irrigation system shows a high level of sensitivity to short-term perturbations, but long-term resilience if flows recover. Management strategies accounting for local level adaptability will be necessary to mitigate the impacts of low flow years but there is scope for improvement of the performance of the system. |
| format | Journal Article |
| id | CGSpace40549 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2010 |
| publishDateRange | 2010 |
| publishDateSort | 2010 |
| publisher | American Society of Civil Engineers |
| publisherStr | American Society of Civil Engineers |
| record_format | dspace |
| spelling | CGSpace405492025-06-17T08:23:41Z Farmers' adaptation and regional land use changes in irrigation systems under fluctuating water supply, South India Venot, Jean-Philippe Jella, Kiran Bharati, Luna George, B. Biggs, Trent W. Gangadhara Rao, Parthasaradhi Gumma, Murali K. Acharya, Sreedhar irrigation systems irrigation programs water shortage water scarcity water availability river basins crop management productivity In closing river basins where nearly all available water is committed to existing uses, downstream irrigation projects are expected to experience water shortages more frequently. Understanding the scope for resilience and adaptation of large surface irrigation systems is vital to the development of management strategies designed to mitigate the impact of river basin closure on food production and the livelihoods of farmers. A multi-level analysis (farm level surveys and regional assessment through remote sensing techniques and statistics) of the dynamics of irrigation and land use in the Nagarjuna Sagar project (South India) in times of changing water availability (2000-2006) highlights that during low flow years, there is large-scale adoption of rainfed ?or supplementary irrigated- crops that have lower land productivity but higher water productivity, and that a large fraction of land is fallowed. Cropping pattern changes during the drought reveal short term coping strategies rather than long-term evolutions: after the shock, farmers reverted to their usual cropping patterns during years with adequate canal supplies. For the sequence of water supply fluctuations observed from 2000-2006, the Nagarjuna Sagar irrigation system shows a high level of sensitivity to short-term perturbations, but long-term resilience if flows recover. Management strategies accounting for local level adaptability will be necessary to mitigate the impacts of low flow years but there is scope for improvement of the performance of the system. 2010-09 2014-06-13T14:47:53Z 2014-06-13T14:47:53Z Journal Article https://hdl.handle.net/10568/40549 en Limited Access American Society of Civil Engineers Venot, Jean-Philippe; Jella, Kiran; Bharati, Luna; George, B.; Biggs, T.; Gangadhara Rao, Parthasaradhi; Gumma, M. K.; Acharya, Sreedhar. 2010. Farmers' adaptation and regional land use changes in irrigation systems under fluctuating water supply, South India. Journal of Irrigation and Drainage Engineering, 136(9):595-609. doi: https://doi.org/10.1061/(ASCE)IR.1943-4774.0000225 |
| spellingShingle | irrigation systems irrigation programs water shortage water scarcity water availability river basins crop management productivity Venot, Jean-Philippe Jella, Kiran Bharati, Luna George, B. Biggs, Trent W. Gangadhara Rao, Parthasaradhi Gumma, Murali K. Acharya, Sreedhar Farmers' adaptation and regional land use changes in irrigation systems under fluctuating water supply, South India |
| title | Farmers' adaptation and regional land use changes in irrigation systems under fluctuating water supply, South India |
| title_full | Farmers' adaptation and regional land use changes in irrigation systems under fluctuating water supply, South India |
| title_fullStr | Farmers' adaptation and regional land use changes in irrigation systems under fluctuating water supply, South India |
| title_full_unstemmed | Farmers' adaptation and regional land use changes in irrigation systems under fluctuating water supply, South India |
| title_short | Farmers' adaptation and regional land use changes in irrigation systems under fluctuating water supply, South India |
| title_sort | farmers adaptation and regional land use changes in irrigation systems under fluctuating water supply south india |
| topic | irrigation systems irrigation programs water shortage water scarcity water availability river basins crop management productivity |
| url | https://hdl.handle.net/10568/40549 |
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