Logo do repositório
 
Publicação

Salts dynamics in maize irrigation in the Hetao plateau using static water table lysimeters and HYDRUS-1D with focus on the autumn leaching irrigation

2023-06Artigo científico Acesso aberto
Ver registo simples
dc.contributor.authorRamos, Tiago B.
dc.contributor.authorLiu, Meihan
dc.contributor.authorParedes, Paula
dc.contributor.authorShi, Haibin
dc.contributor.authorFeng, Zhuangzhuang
dc.contributor.authorLei, Huimin
dc.contributor.authorPereira, L.S.
dc.date.accessioned2024-03-20T19:01:18Z
dc.date.available2024-03-20T19:01:18Z
dc.date.issued2023-06
dc.description.abstractSoil salinization problems are widespread in the Hetao plain, Inner Mongolia, resulting from arid climate con- ditions, a shallow saline water table, poor irrigation water management, and insufficient drainage. This study follows previous research aimed at evaluating crop water use and controlling the salinity build-up in the region, namely using weighing and static water table lysimeters to parameterize a water balance model aimed at the development of appropriate irrigation scheduling. Two sets of five static water table lysimeters, which fixed depths ranged from 1.25 to 2.25 m, were used over two maize crop seasons. The mechanistic HYDRUS-1D model was further used to daily predict measured data on soil water contents, boundary fluxes in the interface between the saturated and unsaturated zones, the electrical conductivity of the soil saturation paste extract (ECe), and the actual crop evapotranspiration (ETc act). The soil water balance helped quantify the combined effect of water and salinity stresses on root water uptake as well as groundwater fluxes into the rootzone. The salt balance showed that the salinity build-up was much related to irrigation and capillary fluxes, and that the autumn irrigation carried out during the non-growing season was essential for controlling soil salinity. The efficiency of the autumn irrigation much depended on groundwater depth and the amount of water applied for salt leaching, with the best results found for the lysimeters with water table depths at 2.0 and 2.25 m (85–100%) for irrigation depths ≥ 220 mm. The lysimeters with shallower water tables never showed a leaching efficiency higher than 88%. This research shows that the sustainability of irrigation in Hetao depends on finding adequate solutions for controlling the depth of the saline groundwater, minimizing capillary fluxes to the rootzone, and developing consequent approaches for autumn irrigation leaching.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRamos, Tiago B., et al. “Salts Dynamics in Maize Irrigation in the Hetao Plateau Using Static Water Table Lysimeters and HYDRUS-1D with Focus on the Autumn Leaching Irrigation.” Agricultural Water Management, vol. 283, June 2023, p. 108306.pt_PT
dc.identifier.doi10.1016/j.agwat.2023.108306pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/30461
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationUIDP/EEA/50009/2020pt_PT
dc.relationLinking Landscape, Environment, Agriculture and Food
dc.relation52269014pt_PT
dc.relation2021YFD1900602–6pt_PT
dc.relationNot Available
dc.relation.publisherversionwww.elsevier.com/locate/agwatpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectAutumn irrigationpt_PT
dc.subjectElectrical conductivity of the soil saturationpt_PT
dc.subjectpaste extractpt_PT
dc.subjectEvapotranspirationpt_PT
dc.subjectHYDRUS-1D modelpt_PT
dc.subjectLeachingpt_PT
dc.subjectUpward fluxespt_PT
dc.titleSalts dynamics in maize irrigation in the Hetao plateau using static water table lysimeters and HYDRUS-1D with focus on the autumn leaching irrigationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDB/04129/2020
oaire.awardNumber2022.03921.PTDC
oaire.awardNumberCEECIND/01152/2017/CP1461/CT0019
oaire.awardTitleLinking Landscape, Environment, Agriculture and Food
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04129%2F2020/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.citation.startPageArticle number 108306pt_PT
oaire.citation.titleAgricultural Water Managementpt_PT
oaire.citation.volume283pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream3599-PPCDT
oaire.fundingStreamCEEC IND 2017
person.familyNameParedes
person.givenNamePaula
person.identifier.ciencia-idEC14-3F53-471D
person.identifier.orcid0000-0001-5609-0234
person.identifier.ridF-9463-2010
person.identifier.scopus-author-id25923078000
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
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication8246248d-9151-4403-9fcc-72d61f999151
relation.isAuthorOfPublication.latestForDiscovery8246248d-9151-4403-9fcc-72d61f999151
relation.isProjectOfPublication68ef0aed-47b8-469e-819f-7175024862e9
relation.isProjectOfPublicatione4555513-3903-44ce-87be-a1a1c8aa3bf1
relation.isProjectOfPublicationbfb71ea0-d3b3-4972-9c9c-d4e7c15f3bd4
relation.isProjectOfPublication.latestForDiscoverybfb71ea0-d3b3-4972-9c9c-d4e7c15f3bd4

Ficheiros

Licença
A mostrar 1 - 1 de 1
Miniatura indisponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Ver/Abrir

Coleções

ISA - Artigos em Revistas Internacionais