Modelling soil, carbon and vegetation dynamics in estuarine wetlands experiencing sea-level rise

Estuarine wetlands are among the most productive ecosystems in the world, providing unique habitats for fish and many terrestrial species. They also have a carbon sequestration capacity that surpasses terrestrial forest. In NSW, and most of south eastern Australia, they typically display a vegetat...

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Detalles Bibliográficos
Autores principales: Trivisonno, Franco N., Rodriguez, Jose F., Riccardi, Gerardo A., Saco, Patricia M.
Otros Autores: International Association for Hydro-Environment Engineering and Research (IAHR) 2013
Formato: conferenceObject documento de conferencia
Lenguaje:Inglés
Publicado: 2020
Materias:
Vegetation dynamics
Estuarine wetlands
Sea-level rise
Acceso en línea:http://hdl.handle.net/2133/17704
http://hdl.handle.net/2133/17704
Aporte de:
Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR) de Universidad Nacional de Rosario
id I15-R121-2133-17704
record_format dspace
institution Universidad Nacional de Rosario
institution_str I-15
repository_str R-121
collection Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR)
language Inglés
orig_language_str_mv eng
topic Vegetation dynamics
Estuarine wetlands
Sea-level rise
spellingShingle Vegetation dynamics
Estuarine wetlands
Sea-level rise
Trivisonno, Franco N.
Rodriguez, Jose F.
Riccardi, Gerardo A.
Saco, Patricia M.
Modelling soil, carbon and vegetation dynamics in estuarine wetlands experiencing sea-level rise
topic_facet Vegetation dynamics
Estuarine wetlands
Sea-level rise
description Estuarine wetlands are among the most productive ecosystems in the world, providing unique habitats for fish and many terrestrial species. They also have a carbon sequestration capacity that surpasses terrestrial forest. In NSW, and most of south eastern Australia, they typically display a vegetation zonation with a sequence mudflats - mangrove forest - saltmarsh plains from the seaward margin and up the topographic gradient. Estuarine wetlands respond to sea-level rise by vertical accretion and horizontal landward migration, in order to maintain their position in the tidal frame. In situations in which accretion cannot compensate for sea-level rise and buffer areas for landward migration are not available, estuarine vegetation can be lost due to unsuitable hydraulic conditions. Predicting estuarine wetlands response to sea-level rise requires simultaneous modelling of water flow, soil and vegetation dynamics. This paper presents some preliminary results of our recently developed numerical model for wetland dynamics in wetlands of the Hunter estuary of NSW. The model continuously simulates tidal inputs into the wetland and vegetation types are determined based on their preference to prevailing hydrodynamic conditions. Accretion values based on vegetation types are computed and the topography is updated accordingly. The model is driven by local information collected over several years, which include estuary water levels, accretion rates, soil carbon content, flow resistance and vegetation preference to hydraulic conditions. Model results predict further wetland loss under an accelerated sea-level rise scenario and also under current conditions of moderate increase of estuary water levels.
author2 International Association for Hydro-Environment Engineering and Research (IAHR) 2013
author_facet International Association for Hydro-Environment Engineering and Research (IAHR) 2013
Trivisonno, Franco N.
Rodriguez, Jose F.
Riccardi, Gerardo A.
Saco, Patricia M.
format conferenceObject
documento de conferencia
author Trivisonno, Franco N.
Rodriguez, Jose F.
Riccardi, Gerardo A.
Saco, Patricia M.
author_sort Trivisonno, Franco N.
title Modelling soil, carbon and vegetation dynamics in estuarine wetlands experiencing sea-level rise
title_short Modelling soil, carbon and vegetation dynamics in estuarine wetlands experiencing sea-level rise
title_full Modelling soil, carbon and vegetation dynamics in estuarine wetlands experiencing sea-level rise
title_fullStr Modelling soil, carbon and vegetation dynamics in estuarine wetlands experiencing sea-level rise
title_full_unstemmed Modelling soil, carbon and vegetation dynamics in estuarine wetlands experiencing sea-level rise
title_sort modelling soil, carbon and vegetation dynamics in estuarine wetlands experiencing sea-level rise
publishDate 2020
url http://hdl.handle.net/2133/17704
http://hdl.handle.net/2133/17704
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AT riccardigerardoa modellingsoilcarbonandvegetationdynamicsinestuarinewetlandsexperiencingsealevelrise
AT sacopatriciam modellingsoilcarbonandvegetationdynamicsinestuarinewetlandsexperiencingsealevelrise
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