Biogeosciences
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Articles | Volume 23, issue 8
Articles | Volume 23, issue 8
https://doi.org/10.5194/bg-23-2865-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-2865-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 8
Research article
 | 
27 Apr 2026
Research article |  | 27 Apr 2026

Carbon dioxide release driven by organic carbon in minerogenic salt marshes

Nora Kainz, Franziska Raab, L. Joëlle Kubeneck, Ruben Kretzschmar, Andreas Kappler, and Prachi Joshi

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Short summary
Salt marshes, a type of coastal wetland, store “blue” carbon. At the same time, these ecosystems can release the greenhouse gases carbon dioxide (CO2) and methane (CH4) via microbial decomposition of stored carbon. In this study, we studied what drives the release of CO2 from mineral-rich salt marshes and found that the quantity and form of carbon are the most important factors. Our results improve understanding of salt marsh carbon cycling, allowing better prediction of future changes.
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