Farmers' adaptation and regional land use changes in irrigation systems under fluctuating water supply, South India

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cg.contributor.affiliationInternational Water Management Instituteen
cg.coverage.countryIndia
cg.coverage.iso3166-alpha2IN
cg.coverage.regionAsia
cg.coverage.regionSouthern Asia
cg.coverage.subregionNagarjuna Sagar Project
cg.creator.identifierLuna Bharati: 0000-0002-6218-3282
cg.identifier.doihttps://doi.org/10.1061/(asce)ir.1943-4774.0000225en
cg.issn0733-9437en
cg.issue9en
cg.journalJournal of Irrigation and Drainage Engineeringen
cg.volume136en
dc.contributor.authorVenot, Jean-Philippeen
dc.contributor.authorJella, Kiranen
dc.contributor.authorBharati, Lunaen
dc.contributor.authorGeorge, B.en
dc.contributor.authorBiggs, Trent W.en
dc.contributor.authorGangadhara Rao, Parthasaradhien
dc.contributor.authorGumma, Murali K.en
dc.contributor.authorAcharya, Sreedharen
dc.date.accessioned2014-06-13T14:47:53Zen
dc.date.available2014-06-13T14:47:53Zen
dc.identifier.urihttps://hdl.handle.net/10568/40549
dc.titleFarmers' adaptation and regional land use changes in irrigation systems under fluctuating water supply, South Indiaen
dcterms.abstractIn 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.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationVenot, 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.1943-4774.0000225en
dcterms.extentpp. 595-609en
dcterms.issued2010-09
dcterms.languageen
dcterms.publisherAmerican Society of Civil Engineersen
dcterms.subjectirrigation systemsen
dcterms.subjectirrigation programsen
dcterms.subjectwater shortageen
dcterms.subjectwater scarcityen
dcterms.subjectwater availabilityen
dcterms.subjectriver basinsen
dcterms.subjectcrop managementen
dcterms.subjectproductivityen
dcterms.typeJournal Article

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