Assessment of crop evapotranspiration and deep percolation in a commercial irrigated citrus orchard under semi-arid climate: combined Eddy-Covariance measurement and soil water balance-based approach

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cg.contributor.affiliationUniversité Mohammed VI Polytechniqueen
cg.contributor.affiliationInternational Water Management Instituteen
cg.contributor.affiliationInstitut de Recherche pour le Développement, Franceen
cg.contributor.donorGEANTech Projecten
cg.contributor.donorCGIAR Trust Funden
cg.contributor.initiativeFragility to Resilience in Central and West Asia and North Africa
cg.coverage.countryMorocco
cg.coverage.iso3166-alpha2MA
cg.coverage.regionNorthern Africa
cg.coverage.subregionSouss-Massa
cg.creator.identifierBROUZIYNE Youssef: 0000-0001-6710-9527
cg.identifier.doihttps://doi.org/10.1016/j.agwat.2022.107997en
cg.identifier.iwmilibraryH051504
cg.isijournalISI Journalen
cg.issn0378-3774en
cg.journalAgricultural Water Managementen
cg.reviewStatusPeer Reviewen
cg.volume275en
dc.contributor.authorAli, A.A.en
dc.contributor.authorBouchaou, L.en
dc.contributor.authorEr-Raki, S.en
dc.contributor.authorHssaissoune, M.en
dc.contributor.authorBrouziyne, Youssefen
dc.contributor.authorEzzahar, J.en
dc.contributor.authorKhabba, S.en
dc.contributor.authorChakir, A.en
dc.contributor.authorLabbaci, A.en
dc.contributor.authorChehbouni, Abdelghanien
dc.date.accessioned2022-11-17T05:18:56Zen
dc.date.available2022-11-17T05:18:56Zen
dc.identifier.urihttps://hdl.handle.net/10568/125499
dc.titleAssessment of crop evapotranspiration and deep percolation in a commercial irrigated citrus orchard under semi-arid climate: combined Eddy-Covariance measurement and soil water balance-based approachen
dcterms.abstractAn accurate estimate of crop coefficient (Kc) values at different development stages (Kcini, Kcmid, and Kcend) is crucial for assessing crop water requirements in semi-arid regions. The objectives of this study were first to quantify the reference evapotranspiration (ETo) and to calculate the actual evapotranspiration (ETa) over citrus in a semi-arid climate under drip irrigation. For this purpose, a site of a citrus orchard in Souss-Massa, planted with the Esbal variety of clementine, was equipped with an Eddy-Covariance (EC) system, and sensors to measure radiation, soil heat flux, and micrometeorological forcing data, during 2020 and 2021 seasons. Also, the soil moisture content at various soil depths in the root zone near the EC tower was monitored. The energy balance closure (EBC) approach was adopted for flux assessment to ensure a quality check for the EC measurements. The obtained EBCs were about 82% and 79% for the daily measurements in 2020 and 2021, respectively, which can be considered acceptable considering the nature of the citrus orchard (relatively tall and sparse). Second, the study aimed to estimate actual Kc act values for citrus under the same irrigation strategy. The derived values were compared to different recommended Kc values in the literature. In the third stage, this work aimed to offer an alternative plan to sustainable irrigation management by elaborating an irrigation schedule for citrus crops in the region using the FAO-56 simple approach to avoid water stress and deep percolation (i.e., Ks = 1 and DP = 0). Eventually, an irrigation schedule was drawn following the crop’s phenological stages. The seasonal mean citrus evapotranspiration (ETa) values are 1.68, 3.02, and 1.86 mm/day for the initial, mid, and end-season. The seasonal actual Kc act values were 0.64, 0.58, and 0.64 for Kcini, Kcmid, and Kcend, respectively. Additionally, the application of the water balance equation revealed that a large quantity of water is lost through deep percolation (52% of total water supplied). The study focuses on Citrus trees being a strategic crop with important socio-economic values in the Souss-Massa region. Thus, the results should support both scientists and farmers in planning and strategy development.en
dcterms.accessRightsOpen Access
dcterms.bibliographicCitationAli, A. A.; Bouchaou, L.; Er-Raki, S.; Hssaissoune, M.; Brouziyne, Youssef; Ezzahar, J.; Khabba, S.; Chakir, A.; Labbaci, A.; Chehbouni, A. 2023. Assessment of crop evapotranspiration and deep percolation in a commercial irrigated citrus orchard under semi-arid climate: combined Eddy-Covariance measurement and soil water balance-based approach. Agricultural Water Management, 275:107997. [doi: https://doi.org/10.1016/j.agwat.2022.107997]en
dcterms.extent275:107997en
dcterms.issued2023-02-09
dcterms.languageen
dcterms.licenseCC-BY-NC-ND-4.0
dcterms.publisherElsevieren
dcterms.subjectirrigated farmingen
dcterms.subjectcitrusen
dcterms.subjectevapotranspirationen
dcterms.subjectdeep percolationen
dcterms.subjectsemiarid climateen
dcterms.subjectcommercial farmingen
dcterms.subjectsoil water balanceen
dcterms.subjectenergy balanceen
dcterms.subjectagricultureen
dcterms.subjectwater managementen
dcterms.subjectirrigation managementen
dcterms.subjectirrigation schedulingen
dcterms.subjectwater supplyen
dcterms.subjectwater stressen
dcterms.subjectrainen
dcterms.subjectcrop water useen
dcterms.subjectmediterranean climateen
dcterms.subjecteddy covarianceen
dcterms.typeJournal Article

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