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

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cg.coverage.countryIndiaen_US
cg.coverage.iso3166-alpha2INen_US
cg.coverage.regionSouthern Asiaen_US
cg.coverage.subregionIndira Sagar Right Main Canalen_US
cg.coverage.subregionEluru Canalen_US
cg.river.basinKRISHNAen_US
cg.river.basinGODAVARIen_US
dc.contributor.authorSharma, Bharat R.en_US
dc.contributor.authorMassuel, S.en_US
dc.contributor.authorRao, K.V.G.K.en_US
dc.contributor.authorVenot, Jean-Philippeen_US
dc.date.accessioned2014-06-13T11:42:41Zen_US
dc.date.available2014-06-13T11:42:41Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/38686en_US
dc.titleGroundwater externalities of large, surface irrigation transfers: insights from the Godavari-Krishna river link, Indiaen_US
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_US
dcterms.accessRightsLimited Accessen_US
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_US
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_US
dcterms.descriptionIAHS Publication 330en_US
dcterms.issued2009en_US
dcterms.languageenen_US
dcterms.subjectriver basin managementen_US
dcterms.subjectgroundwater rechargeen_US
dcterms.subjectsimulation modelsen_US
dcterms.subjectirrigation canalsen_US
dcterms.subjectwater balanceen_US
dcterms.subjectwaterloggingen_US
dcterms.subjectwater transferen_US
dcterms.subjectgroundwater irrigationen_US
dcterms.subjectcrop productionen_US
dcterms.typeConference Paperen_US

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