Optimal Dynamic Water Allocation for Irrigation of Multiple Crops

dc.contributor.authorIşik, Sabahattin
dc.contributor.authorKalin, Latif
dc.date.accessioned2025-10-24T18:06:41Z
dc.date.available2025-10-24T18:06:41Z
dc.date.issued2014
dc.departmentMalatya Turgut Özal Üniversitesi
dc.descriptionEnvironmental and Water Resources Institute (EWRI) of the American Society of Civil Engineers (ASCE)
dc.descriptionWorld Environmental and Water Resources Congress 2014: Water Without Borders -- -- Portland; OR -- 112382
dc.description.abstractA dynamic irrigation scheduling method was developed for optimal water allocation from an irrigation reservoir and maximum net benefit from multiple crops under wet, average, and drought conditions. The model integrates two control volumes: (1) the plant root zone, which demands water, and (2) the reservoir, which supplies water. The FAO Penman-Monteith method was used to compute the reference crop evapotranspiration (ET<inf>0</inf>). Optimal allocation of water supply in the reservoir was determined by a dynamic programming method. The model allows for variable decision intervals for each crop. Because soil moisture exhibits a dynamic structure, various scenarios were developed for probable soil moisture deficit ratios. The objective function of the model developed in this study consists of the yield sensitive factor (K<inf>y</inf>), the actual evapotranspiration (ET<inf>a</inf>), the potential evapotranspiration (ET<inf>m</inf>), the maximum crop yield (Y<inf>m</inf>), the benefit of unit yield in unit area (UB), the unit cost of unit yield in unit area (UC), the unit cost of water of unit yield in unit area (UCW), and the crop area (AREA). The applicability of the method was demonstrated through a case study of Cavdarhisar Dam irrigation field (5000 ha) in Kutahya, Turkey. From the commonly grown crops in the area, wheat, maize, sunflower, potato, onion, sugar beet, beans, tomato, chickpea, and melon-watermelon were selected to be planted. Optimum water allocation scheduling of available water in the reservoir was determined based on maximum net benefit from multiple crops under wet, average, and drought conditions. © 2015 Elsevier B.V., All rights reserved.
dc.identifier.doi10.1061/9780784413548.172
dc.identifier.endpage1744
dc.identifier.isbn9780784413548
dc.identifier.scopus2-s2.0-84935468909
dc.identifier.scopusqualityN/A
dc.identifier.startpage1736
dc.identifier.urihttps://doi.rog/10.1061/9780784413548.172
dc.identifier.urihttps://hdl.handle.net/20.500.12899/3130
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAmerican Society of Civil Engineers (ASCE) onlinejls@asce.org
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzScopus_20251023
dc.subjectdeficit irrigation
dc.subjectevapotranspiration
dc.subjectoptimal water allocation
dc.subjectreservoir operation
dc.titleOptimal Dynamic Water Allocation for Irrigation of Multiple Crops
dc.typeConference Object

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