Articles | Volume 13, issue 8
Biogeosciences, 13, 2291–2303, 2016
https://doi.org/10.5194/bg-13-2291-2016
Biogeosciences, 13, 2291–2303, 2016
https://doi.org/10.5194/bg-13-2291-2016

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 et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (07 Mar 2016) by Daniel Obrist
AR by Alison Cassidy on behalf of the Authors (07 Mar 2016)  Author's response    Manuscript
ED: Publish subject to minor revisions (Editor review) (17 Mar 2016) by Daniel Obrist
AR by Alison Cassidy on behalf of the Authors (31 Mar 2016)  Author's response    Manuscript
ED: Publish as is (12 Apr 2016) by Daniel Obrist
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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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