Biogeosciences
Biogeosciences
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Articles | Volume 22, issue 4
Articles | Volume 22, issue 4
https://doi.org/10.5194/bg-22-1149-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-1149-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 4
Research article
 | 
03 Mar 2025
Research article |  | 03 Mar 2025

Eddy covariance evaluation of ecosystem fluxes at a temperate saltmarsh in Victoria, Australia, shows large CO2 uptake

Ruth Reef, Edoardo Daly, Tivanka Anandappa, Eboni-Jane Vienna-Hallam, Harriet Robertson, Matthew Peck, and Adrien Guyot

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Cited articles

Adam, P.: Saltmarsh Ecology, Cambridge University Press, Cambridge, England, UK, 461 pp., ISBN 10 0521245087 1990. 
Adam, P.: Morecambe Bay saltmarshes: 25 years of change, in: British Saltmarshes, Forrest Text, Cardigan, UK, 81–107, 2000. 
Adam, P.: Saltmarshes in a time of change, Environ. Conserv., 29, 39–61, https://doi.org/10.1017/S0376892902000048, 2002. 
Alongi, D. M.: Carbon balance in salt marsh and mangrove ecosystems: A global synthesis, J. Mar. Sci. Eng., 8, 767, https://doi.org/10.3390/jmse8100767, 2020. 
Artigas, F., Shin, J. Y., Hobble, C., Marti-Donati, A., Schäfer, K. V. R., and Pechmann, I.: Long term carbon storage potential and CO2 sink strength of a restored salt marsh in New Jersey, Agric. For. Meteorol., 200, 313–321, https://doi.org/10.1016/j.agrformet.2014.09.012, 2015. 
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Studies show that saltmarshes excel at capturing carbon from the atmosphere. In this study, we measured CO2 flux in an Australian temperate saltmarsh on French Island. The temperate saltmarsh exhibited strong seasonality. During the warmer growing season, the saltmarsh absorbed 10.5 g CO2 m−2 on average daily from the atmosphere. Even in winter, when plants were dormant, it continued to be a CO2 sink, albeit a smaller one. Cool temperatures and high cloud cover inhibit carbon sequestration.
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