Biogeosciences
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Articles | Volume 23, issue 7
Articles | Volume 23, issue 7
https://doi.org/10.5194/bg-23-2431-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-2431-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 7
Research article
 | 
13 Apr 2026
Research article |  | 13 Apr 2026

Temporary waterlogging alters CO2 flux dynamics but not cumulative emissions in cultivated mineral soils

Reija Kronberg, Sanna Kanerva, Markku Koskinen, Tatu Polvinen, Tuomas Mattila, and Mari Pihlatie

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Short summary
We studied how off-season waterlogging affects CO2 fluxes and dissolved carbon dynamics in cultivated boreal mineral soils. The study was conducted with intact soil profiles in a greenhouse. Waterlogging reduced immediate CO2 efflux, but CO2 accumulated in porewater and was released to the atmosphere upon soil drying. Cumulative emissions remained unaltered. Our results suggest that temporary waterlogging does not suppress total CO₂ production in mineral soils as much as commonly assumed.
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