Biogeosciences
Biogeosciences
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Articles | Volume 22, issue 23
Articles | Volume 22, issue 23
https://doi.org/10.5194/bg-22-7901-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-7901-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 23
Research article
 | 
10 Dec 2025
Research article |  | 10 Dec 2025

The evolution of methane production rates from young to mature thermokarst lakes

Yarden Gerera, André Pellerin, Efrat Eliani Russak, Katey Walter Anthony, Nicholas Hasson, Yoav Oved Rosenberg, and Orit Sivan

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Short summary
Thermokarst lakes have formed over thousands of years from permafrost thaw in the Arctic. Here, we quantify the change in methane production rates as thermokarst lakes evolve through an incubation-based approach of measuring and comparing methane production rates and organic carbon lability between a more mature thermokarst lake and a young dynamic thermokarst lake. We also show the use of the Rock-Eval analysis of organic carbon along the sediments as a proxy for organic susceptibility for methanogenesis.
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