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Water use, soil water balance and soil salinization risks of Mediterranean tree orchards in southern Portugal under current climate variability: Issues for salinity control and irrigation management

2023-06Artigo científico Acesso aberto
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dc.contributor.authorRamos, Tiago B.
dc.contributor.authorDarouich, Hanaa
dc.contributor.authorOliveira, Ana R.
dc.contributor.authorMohammad, Farzamian
dc.contributor.authorMonteiro, Tomás
dc.contributor.authorCastanheira, Nádia
dc.contributor.authorPaz, Ana
dc.contributor.authorAlexandre, Carlos
dc.contributor.authorGonçalves, Maria C.
dc.contributor.authorPereira, L.S.
dc.date.accessioned2023-12-22T13:59:55Z
dc.date.available2023-12-22T13:59:55Z
dc.date.issued2023-06
dc.description.abstractSecondary salinization has long been reported in the Roxo irrigation district (RID), southern Portugal, due to the use of saline-prone irrigation water and the existence of poorly structured soils. This study assessed the soil water and salt budgets in nine commercial orchards located in the RID using the multiple ion chemistry module available in the HYDRUS-1D model during the 2019 and 2020 growing seasons. The studied crops were almond, olive, citrus (orange, mandarin, and clementine), and pomegranate. The model successfully simulated soil water contents measured in the different fields but there was a clear underestimation of the electrical conductivity of the soil saturation paste extract (ECe) in some locations, while simulations of the sodium adsorption ratio (SAR) were generally acceptable. Modeling errors were mostly associated with missing information on fertigation events rather than related to the effects of irrigation water quality. The water and salt balances were also computed for the 1979–2020 period. Considering the probability of non-exceedance of salt accumulation during this period, the risk of salinity build-up was high to very high for the very dry years in most fields, except in the citrus sites. The factors influencing the salt accumulation were the irrigation strategy, the seasonal irrigation and rainfall depths, the duration of the crop growth period, the rainfall distribution in the late and non-growing stages, the soil drainage conditions, and the irrigation water quality. For the current climate conditions and irrigation water quality, the risk of soil salinity levels affecting crop development and yields was found to be minor. This means that, despite salts tended to accumulate in the rootzone over a season, under current conditions the salinity stress did not reach harmful levels for plants. Only in two of the study sites, there was a need to promote salt leaching. Hence, this study shows that soil salinization risks in the study area are low but, for given locations during drier seasons, there is a need for tailored irrigation solutions aimed at the conservation of soil and water resources.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRamos, T.B., Darouich, H., Oliveira, A.R., Farzamian, M., Monteiro, T., Castanheira, N., Paz, A., Alexandre, C., Gonçalves, M.C. and Pereira, L.S., 2023. Water use, soil water balance and soil salinization risks of Mediterranean tree orchards in southern Portugal under current climate variability: Issues for salinity control and irrigation management. Agricultural Water Management, 283, p.108319pt_PT
dc.identifier.doi10.1016/j.agwat.2023.108319pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/29669
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationUIDP/EEA/50009/2020pt_PT
dc.relationSustainable use of soil and water for improving crops productivity in irrigated areas
dc.relationNot Available
dc.relationNot Available
dc.relation.publisherversionwww.elsevier.com/locate/agwatpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectirrigation water managementpt_PT
dc.subjectHYDRUS-1Dpt_PT
dc.subjectleaching needspt_PT
dc.subjectsalinity build-uppt_PT
dc.subjectsolute stresspt_PT
dc.titleWater use, soil water balance and soil salinization risks of Mediterranean tree orchards in southern Portugal under current climate variability: Issues for salinity control and irrigation managementpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberPTDC/ASP-SOL/28796/2017
oaire.awardNumber2022.03921.PTDC
oaire.awardNumberCEECIND/01152/2017/CP1461/CT0019
oaire.awardNumberCEECIND/01153/2017/CP1430/CT0002
oaire.awardTitleSustainable use of soil and water for improving crops productivity in irrigated areas
oaire.awardTitleNot Available
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FASP-SOL%2F28796%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/2022.03921.PTDC/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 2017/CEECIND%2F01152%2F2017%2FCP1461%2FCT0019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 2017/CEECIND%2F01153%2F2017%2FCP1430%2FCT0002/PT
oaire.citation.startPage108319pt_PT
oaire.citation.titleAgricultural Water Managementpt_PT
oaire.citation.volume283pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStream3599-PPCDT
oaire.fundingStreamCEEC IND 2017
oaire.fundingStreamCEEC IND 2017
person.familyNameDarouich
person.givenNameHanaa
person.identifier.ciencia-id5D13-DECD-D29D
person.identifier.orcid0000-0001-8811-1175
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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