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dc.contributorOweis, Theiben_US
dc.creatorHessari, Behzaden_US
dc.identifier.citationBehzad Hessari, Theib Oweis. (1/6/2021). Conjunctive use of green and blue water resources in agriculture: Methodology and application for supplemental irrigation. Irrigation and Drainage, 70 (5), pp. 1193-1208.en_US
dc.description.abstractSupplemental irrigation (SI) ensures an efficient conjunctive use of green and blue water resources in dryland cropping by alleviating the negative impacts of precipitation shortages and drought spells on plant growth and production. The management of SI at the field level is well documented but little is known about planning at basin scale. This work uses a geographic information system-based modelling approach together with suitability criteria to identify potential areas for expanding SI at scale. A spatial water allocation algorithm is developed to model SI water allocation using data layers consisting of climate surfaces, classified land-use maps, and a digital elevation model. Areas are prioritized stepwise, according to land suitability, until the available water is fully utilized. The analysis was applied in a watershed in western Iran. The analysis revealed that, with SI, available water resources in the winter season can supplementally irrigate a new land area of about 2,900 ha, about twice the area conventionally irrigated in the dry season. However, adopting a deficit SI strategy allows irrigation of additional 3,220 ha, more than double of the current water allocation efficiency. The approach can be applied in any rainfed area with available water without major modifications, but further analysis is needed to evaluate its economics at scale.en_US
dc.publisherWiley (12 months)en_US
dc.rightsCopyrighted; all rights reserveden_US
dc.sourceIrrigation and Drainage;70,(2021) Pagination 1193,1208en_US
dc.subjectproductivité de l'eauen_US
dc.subjectrainfed agricultureen_US
dc.subjectgis modellingen_US
dc.subjectirrigation supplémentaireen_US
dc.subjectallocation de l'eauen_US
dc.subjectagriculture pluvialeen_US
dc.subjectmodélisation sigen_US
dc.titleConjunctive use of green and blue water resources in agriculture: Methodology and application for supplemental irrigationen_US
dc.typeJournal Articleen_US
cg.creator.idOweis, Theib: 0000-0002-2003-4852en_US
cg.subject.agrovocsupplemental irrigationen_US
cg.subject.agrovocwater allocationen_US
cg.subject.agrovocwater productivityen_US
cg.contributor.centerUrmia Universityen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionSouthern Asiaen_US
dc.identifier.statusTimeless limited accessen_US

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