Biogeosciences
Biogeosciences
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Articles | Volume 22, issue 6
Articles | Volume 22, issue 6
https://doi.org/10.5194/bg-22-1711-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-1711-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 6
Research article
 | 
01 Apr 2025
Research article |  | 01 Apr 2025

Exploring microscale heterogeneity as a driver of biogeochemical transformations and gas transport in peat

Lukas Kohl, Petri Kiuru, Marjo Palviainen, Maarit Raivonen, Markku Koskinen, Mari Pihlatie, and Annamari Laurén

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Short summary
We present an assay to illuminate heterogeneity in biogeochemical transformations within peat samples. For this, we injected isotope-labeled acetate into peat cores and monitored the release of label-derived gases, which we compared to microtomography images. The fraction of label converted to CO2 and the rapidness of this conversion were linked to injection depth and air-filled porosity.
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