Articles | Volume 15, issue 7
https://doi.org/10.5194/bg-15-1969-2018
https://doi.org/10.5194/bg-15-1969-2018
Research article
 | 
04 Apr 2018
Research article |  | 04 Apr 2018

Substrate potential of last interglacial to Holocene permafrost organic matter for future microbial greenhouse gas production

Janina G. Stapel, Georg Schwamborn, Lutz Schirrmeister, Brian Horsfield, and Kai Mangelsdorf

Data sets

Bulk parameter data, formate and acetate data and microbial life and past biomarkers from Eemian to Holocene permafrost core material drilled on Bol'shoy Lyakhovsky Island (Siberia) within the CARBOPERM project Kai Mangelsdorf and Janina Gabriele Stapel https://doi.org/10.1594/PANGAEA.887781

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Short summary
Climate warming in the Arctic results in thawing of permafrost deposits. This promotes the accessibility of freeze-locked old organic matter (OM) accumulated during the past. Characterizing OM of different depositional ages, we were able to show that OM from last glacial Yedoma deposits possess the highest potential to provide organic substrates such as acetate for microbial greenhouse gas production and therefore to accelerate the carbon–climate feedback cycle during ongoing global warming.
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