Soil respiration across a permafrost transition zone: spatial structure and environmental correlates

Stegen, James C.; Anderson, Carolyn G.; Bond-Lamberty, Ben; Crump, Alex R.; Chen, Xingyuan; Hess, Nancy

doi:https://doi.org/10.5194/bg-14-4341-2017

Articles | Volume 14, issue 18

https://doi.org/10.5194/bg-14-4341-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/bg-14-4341-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 14, issue 18

Research article

|

28 Sep 2017

Research article |

| 28 Sep 2017

Soil respiration across a permafrost transition zone: spatial structure and environmental correlates

James C. Stegen, Carolyn G. Anderson, Ben Bond-Lamberty, Alex R. Crump, Xingyuan Chen, and Nancy Hess

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Final revised paper (published on 28 Sep 2017)
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Preprint (discussion started on 29 Nov 2016)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'A review of the paper', Alfred Stein, 07 Dec 2016
- AC1: 'Response to reviewer comments', James Stegen, 30 May 2017
RC2: 'Short comments on soil C efflux in Alaska permafrost', Anonymous Referee #2, 11 Feb 2017
- AC2: 'Response to reviewer comments', James Stegen, 30 May 2017

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Reconsider after major revisions (07 Jun 2017) by Edzo Veldkamp

AR by James Stegen on behalf of the Authors (12 Jun 2017) Author's response Manuscript

ED: Referee Nomination & Report Request started (16 Jun 2017) by Edzo Veldkamp

RR by Alfred Stein (20 Jun 2017)

RR by Anonymous Referee #2 (08 Jul 2017)

ED: Publish subject to technical corrections (04 Aug 2017) by Edzo Veldkamp

AR by James Stegen on behalf of the Authors (15 Aug 2017) Author's response Manuscript

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Short summary

CO₂ loss from soil to the atmosphere (soil respiration) is a key ecosystem function, especially in systems with permafrost. We find that soil respiration shows a non-linear threshold at permafrost depths > 140 cm and that the number of large trees governs soil respiration. This suggests that remote sensing could be used to estimate spatial variation in soil respiration and (with knowledge of key thresholds) empirically constrain models that predict ecosystem responses to permafrost thaw.