The age of CO2 released from soils in contrasting ecosystems during the arctic winter

Iain P. Hartley*, Mark H. Garnett, Martin Sommerkorn, David W. Hopkins, Philip A. Wookey

*Corresponding author for this work

Research output: Contribution to journalShort communication peer-review

8 Citations (Scopus)


In arctic ecosystems, winter soil respiration can contribute substantially to annual CO2 release, yet the source of this C is not clear. We analysed the 14C content of C released from plant-free plots in mountain birch forest and tundra-heath. Winter-respired CO2 was found to be a similar age (tundra) or older (forest) than C released during the previous autumn. Overall, our study demonstrates that the decomposition of older C can continue during the winter, in these two contrasting arctic ecosystems. copy; 2013 Elsevier Ltd.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalSoil Biology and Biochemistry
Publication statusPrint publication - Aug 2013
Externally publishedYes


  • CO
  • Mountain birch
  • Passive sampling
  • Radiocarbon
  • Tree-line
  • Tundra-heath
  • Winter respiration


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