Biogeosciences
Biogeosciences
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Articles | Volume 13, issue 8
Articles | Volume 13, issue 8
https://doi.org/10.5194/bg-13-2291-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-13-2291-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 13, issue 8
Research article
 | 
20 Apr 2016
Research article |  | 20 Apr 2016

The effect of a permafrost disturbance on growing-season carbon-dioxide fluxes in a high Arctic tundra ecosystem

Alison E. Cassidy, Andreas Christen, and Gregory H. R. Henry

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Short summary
We measured the impacts of permafrost disturbances, namely retrogressive thaw slumps, on the carbon balance in a high Arctic tundra ecosystem. We used a novel approach (dual eddy covariance sampling strategy) to measure continuous CO2 exchange from undisturbed and disturbed tundra simultaneously. We further validate eddy covariance fluxes with portable chamber measurements. Our findings show that permafrost disturbances change the carbon balance from being a net sink to a net source.
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