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dc.contributor.authorFagherazzi, Sergioen_NZ
dc.contributor.authorBryan, Karin R.en_NZ
dc.contributor.authorNardin, Williamen_NZ
dc.date.accessioned2018-01-31T22:22:06Z
dc.date.available2017-09-01en_NZ
dc.date.available2018-01-31T22:22:06Z
dc.date.issued2017en_NZ
dc.identifier.citationFagherazzi, S., Bryan, K. R., & Nardin, W. (2017). Buried Alive or Washed Away The Challenging Life of Mangroves in the Mekong Delta. Oceanography, 30(3), 48–59. https://doi.org/10.5670/oceanog.2017.313en
dc.identifier.issn1042-8275en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/11618
dc.description.abstractMangroves colonize tropical shorelines, protecting coastal communities and providing valuable ecosystem services. Mangroves associated with deltas cope with a very dynamic environment characterized by strong gradients in salinity, deposition triggered by sediment inputs, and erosion caused by waves and currents. Mangroves are adapted to this ever-changing landscape, with different species colonizing different elevations in response to inundation frequency. A series of feedbacks between hydrodynamics, sediment transport, and mangroves was observed in a fringe forest of the Mekong Delta, Vietnam. Sonneratia spp. rapidly encroach upon sandy areas because the stable substrate favors seedling establishment. In contrast, fewer seedlings are present in muddy locations where currents and waves frequently rework the bottom. Along muddy shorelines that are eroding, turbulence increases local scour near roots and trunks, undercutting the trees. Enhanced sediment accumulation due to delta progradation can smother the mangrove roots and lead to forest dieback. We find clear evidence that mangroves affect both hydrodynamics and sediment transport, thus engineering the landscape and enhancing sediment trapping and delta progradation. Sonneratia spp. are replaced by Aegiceras corniculatum, Avicennia marina, and Nypa fruticans when the seabed becomes high enough, indicating that ecological succession is present in a fast prograding deltaic environment. Thus, it is imperative to determine the small-scale feedbacks between mangroves, hydrodynamics, and sediment transport in order to build quantitative ecogeomorphic models of deltaic sedimentation that can be used to explain the distribution of mangrove species, the forest structure, and large-scale dynamics in a tropical deltaic setting.
dc.format.mimetypeapplication/pdf
dc.language.isoenen_NZ
dc.publisherThe Oceanography Societyen_NZ
dc.rights© Copyright 2017 by The Oceanography Society
dc.subjectScience & Technologyen_NZ
dc.subjectPhysical Sciencesen_NZ
dc.subjectOceanographyen_NZ
dc.subjectSEDIMENT DYNAMICSen_NZ
dc.subjectFORESTSen_NZ
dc.subjectRIVERen_NZ
dc.subjectECOSYSTEMSen_NZ
dc.subjectMORPHOLOGYen_NZ
dc.subjectEVOLUTIONen_NZ
dc.subjectPATTERNSen_NZ
dc.titleBuried Alive or Washed Away The Challenging Life of Mangroves in the Mekong Deltaen_NZ
dc.typeJournal Article
dc.identifier.doi10.5670/oceanog.2017.313en_NZ
dc.relation.isPartOfOceanographyen_NZ
pubs.begin-page48
pubs.elements-id206816
pubs.end-page59
pubs.issue3en_NZ
pubs.publication-statusPublisheden_NZ
pubs.volume30en_NZ


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