Mean residence time of lagoons in shallow vegetated floodplains
dc.contributor.author
dc.date.accessioned
2021-05-13T11:07:29Z
dc.date.available
2021-05-13T11:07:29Z
dc.date.issued
2021-02
dc.identifier.issn
0885-6087
dc.identifier.uri
dc.description.abstract
Lagoons interspersed within wetlands are expected to increase the residence time of the flow in the system which, in turn, will lead to enhanced pollutant removal thus ensuring a good ecological status of the ecosystem. In this study, lagoons interspersed in vegetated wetlands have been mimicked in the laboratory to develop a theoretical model to establish the impact three major driving parameters (the vegetation density surrounding a lagoon, the depth aspect ratio [length vs. depth] of the lagoon and the circulating flow – through the Reynolds number) have on determining the residence time of the flow in the lagoon. The results indicate that, according to the maximum free available area of the flow, the presence of vegetation (Juncus maritimus) decreases the residence time. In addition, an increase in the Reynolds number of the circulating flow in the wetlands also resulted in a decrease in the lagoon residence time. Nevertheless, lagoon residence times were found to depend on the depth of the lagoon, with deeper lagoons having higher residence times. The length of the lagoon, however, was found not to affect the residence time. High lagoon residence times in either natural or constructed wetlands are desirable because they enhance pollutant removal from the water. Although, if the residence times are too long, this may lead to anoxic water conditions that could in fact threaten the wetland's ecosystem
dc.description.sponsorship
Ministerio de Economia, Industria y
Competitividad, Grant/Award Number:
CGL2017-86515-P
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.relation
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2017-86515-P/ES/HIDRODINAMICA EN HUMEDALES FRAGMENTADOS. UMBRALES Y RESILIENCIA/
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.1002/hyp.14065
dc.relation.ispartof
Hydrological Processes, 2021, vol. 25, núm. 2, p. e14065
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Articles publicats (D-F)
dc.rights
Attribution 4.0 International
dc.rights.uri
dc.subject
dc.title
Mean residence time of lagoons in shallow vegetated floodplains
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
033203
dc.contributor.funder
dc.type.peerreviewed
peer-reviewed
dc.relation.FundingProgramme
dc.relation.ProjectAcronym
dc.identifier.eissn
1099-1085