Groundwater externalities of large, surface irrigation transfers: insights from the Godavari-Krishna river link, India

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cg.coverage.countryIndia
cg.coverage.iso3166-alpha2IN
cg.coverage.regionSouthern Asia
cg.coverage.subregionIndira Sagar Right Main Canal
cg.coverage.subregionEluru Canal
cg.river.basinKRISHNAen
cg.river.basinGODAVARIen
dc.contributor.authorSharma, Bharat R.en
dc.contributor.authorMassuel, S.en
dc.contributor.authorRao, K.V.G.K.en
dc.contributor.authorVenot, Jean-Philippeen
dc.date.accessioned2014-06-13T11:42:41Zen
dc.date.available2014-06-13T11:42:41Zen
dc.identifier.urihttps://hdl.handle.net/10568/38686
dc.titleGroundwater externalities of large, surface irrigation transfers: insights from the Godavari-Krishna river link, Indiaen
dcterms.abstractThe Krishna basin in South India is a fast closing basin. Consumptive water use, mainly for agriculture, accounted for 90.5% of the basin net inflow. The adjoining Godavari basin is comparatively water rich and it is planned to transfer 5325 million m3 of Godavari waters to Krishna through P-V Link. Such a transfer shall make the groundwater-irrigated area more sustainable, a part of the remaining rainfed area will come under irrigation and current benefits shall increase by 65%. MODFLOW results showed groundwater recharge increased by 28% due to supplement irrigation return flow. Annual estimated seepage from the main system was estimated at 183 million m3 per year leading to an average water table rise of 1.83 m. This is also likely to affect 16% of the command with water logging. Integrated planning of surface and groundwater resources and a scientific demand management through optimization of cropping systems have the potential to effectively harness the benefits of the river linking initiative.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationSharma, Bharat R.; Massuel, S.; Rao, K. V. G. K.; Venot, Jean-Philippe. 2009. Groundwater externalities of large, surface irrigation transfers: insights from the Godavari-Krishna river link, India. In Bloschl, G.; van de Giesen, N.; Muralidharan, D.; Ren, L.; Seyler, F.; Sharma, U.; Vrba, J. (Eds.). Improving integrated surface and groundwater resources management in a vulnerable and changing world: proceedings of Symposium JS.3 at the Joint Convention of the International Association of Hydrological Sciences (IAHS) and the International Association of Hydrogeologists (IAH), Hyderabad, India, 6-12 September 2009. Wallingford, UK: International Association of Hydrological Sciences (IAHS). 8p. (IAHS Publication 330)en
dcterms.descriptionIn Bloschl, G.; van de Giesen, N.; Muralidharan, D.; Ren, L.; Seyler, F.; Sharma, U.; Vrba, J. (Eds.). Improving integrated surface and groundwater resources management in a vulnerable and changing world: proceedings of Symposium JS.3 at the Joint Convention of the International Association of Hydrological Sciences (IAHS) and the International Association of Hydrogeologists (IAH), Hyderabad, India, 6-12 September 2009. Wallingford, UK: International Association of Hydrological Sciences (IAHS).en
dcterms.descriptionIAHS Publication 330en
dcterms.issued2009
dcterms.languageen
dcterms.subjectriver basin managementen
dcterms.subjectgroundwater rechargeen
dcterms.subjectsimulation modelsen
dcterms.subjectirrigation canalsen
dcterms.subjectwater balanceen
dcterms.subjectwaterloggingen
dcterms.subjectwater transferen
dcterms.subjectgroundwater irrigationen
dcterms.subjectcrop productionen
dcterms.typeConference Paper

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