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dc.contributor.authorvan Maanen, Barenden_NZ
dc.contributor.authorCoco, Giovannien_NZ
dc.contributor.authorBryan, Karin R.en_NZ
dc.date.accessioned2015-07-21T21:16:29Z
dc.date.available2015-06-23en_NZ
dc.date.available2015-07-21T21:16:29Z
dc.date.issued2015-06-23en_NZ
dc.identifier.citationvan Maanen, B., Coco, G., & Bryan, K. R. (2015). On the ecogeomorphological feedbacks that control tidal channel network evolution in a sandy mangrove setting. In Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences (pp. 1–25). The Royal Society. http://doi.org/10.1098/rspa.2015.0115en
dc.identifier.issn1471-2946en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/9478
dc.description.abstractAn ecomorphodynamic model was developed to study how Avicennia marina mangroves influence channel network evolution in sandy tidal embayments. The model accounts for the effects of mangrove trees on tidal flow patterns and sediment dynamics. Mangrove growth is in turn controlled by hydrodynamic conditions. The presence of mangroves was found to enhance the initiation and branching of tidal channels, partly because the extra flow resistance in mangrove forests favours flow concentration, and thus sediment erosion in between vegetated areas. The enhanced branching of channels is also the result of a vegetation-induced increase in erosion threshold. On the other hand, this reduction in bed erodibility, together with the soil expansion driven by organic matter production, reduces the landward expansion of channels. The ongoing accretion in mangrove forests ultimately drives a reduction in tidal prism and an overall retreat of the channel network. During sea-level rise, mangroves can potentially enhance the ability of the soil surface to maintain an elevation within the upper portion of the intertidal zone, while hindering both the branching and headward erosion of the landward expanding channels. The modelling results presented here indicate the critical control exerted by ecogeomorphological interactions in driving landscape evolution.
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherThe Royal Societyen_NZ
dc.rights© 2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
dc.subjecttidal channel networks, mangroves,en_NZ
dc.subjectbiophysical interactions, numerical modellingen_NZ
dc.titleOn the ecogeomorphological feedbacks that control tidal channel network evolution in a sandy mangrove settingen_NZ
dc.typeConference Contribution
dc.identifier.doi10.1098/rspa.2015.0115en_NZ
dc.relation.isPartOfProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciencesen_NZ
pubs.begin-page1
pubs.elements-id128847
pubs.end-page25
pubs.issue2180en_NZ
pubs.volumeArticle ID: RSPA20150115en_NZ
uow.identifier.article-noRSPA20150115


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