Dynamics and environmental drivers of methane and nitrous oxide fluxes at the soil and ecosystem levels in a wet tropical forest

Bréchet, Laëtitia M.; Ibáñez, Mercedes; Jackson, Robert B.; Burban, Benoît; Stahl, Clément; Bonal, Damien; Janssens, Ivan A.

doi:10.5194/bg-22-8031-2025

Articles | Volume 22, issue 24

https://doi.org/10.5194/bg-22-8031-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-22-8031-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 24

Research article

|

16 Dec 2025

Research article |

| 16 Dec 2025

Dynamics and environmental drivers of methane and nitrous oxide fluxes at the soil and ecosystem levels in a wet tropical forest

Laëtitia M. Bréchet, Mercedes Ibáñez, Robert B. Jackson, Benoît Burban, Clément Stahl, Damien Bonal, and Ivan A. Janssens

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https://doi.org/10.5194/bg-22-8031-2025-supplement

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Dynamics and environmental drivers of methane and nitrous oxide fluxes at the soil and ecosystem levels in a wet tropical forest Laëtitia Magali Bréchet https://doi.org/10.5281/zenodo.17535314

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Short summary

Net ecosystem and soil fluxes of the greenhouse gases methane (CH₄) and nitrous oxide (N₂O) were measured in a wet tropical forest. The measurements covered a 26-month period including contrasting seasons. The forest absorbed CH₄ during the driest season, and emitted it during the wettest season, while consistently emitting N₂O. The studied upland soils consistently absorb CH₄ but emit N₂O. Statistical models identified soil water content as one of the key drivers of these greenhouse gas fluxes.