Biogeosciences
Biogeosciences
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Articles | Volume 11, issue 23
Articles | Volume 11, issue 23
https://doi.org/10.5194/bg-11-6999-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-11-6999-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 11, issue 23
Research article
 | 
11 Dec 2014
Research article |  | 11 Dec 2014

Disentangling residence time and temperature sensitivity of microbial decomposition in a global soil carbon model

J.-F. Exbrayat, A. J. Pitman, and G. Abramowitz

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Short summary
We use a reduced complexity soil organic carbon (SOC) model to address the influence of two parameters on the response of SOC stocks to climate change: baseline turnover time (k) and temperature sensitivity of decomposition (Q10). In our model, k determines SOC stocks and the magnitude of the response to climate change (from 1850 to 2100 under RCP 8.5) while Q10 drives its sign. We dismiss unlikely simulations using global SOC data to reduce the uncertainty in projections and parameter values.
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