Using respiration quotients to track changing sources of soil respiration seasonally and with experimental warming

Hicks Pries, Caitlin; Angert, Alon; Castanha, Cristina; Hilman, Boaz; Torn, Margaret S.

doi:https://doi.org/10.5194/bg-17-3045-2020

Articles | Volume 17, issue 12

https://doi.org/10.5194/bg-17-3045-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-17-3045-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 12

Research article

|

17 Jun 2020

Research article |

| 17 Jun 2020

Using respiration quotients to track changing sources of soil respiration seasonally and with experimental warming

Caitlin Hicks Pries, Alon Angert, Cristina Castanha, Boaz Hilman, and Margaret S. Torn

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Final revised paper (published on 17 Jun 2020)
Supplement to the final revised paper
Preprint (discussion started on 28 Jun 2019)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Compelling and novel; reproducibility and clarity not adequate', Anonymous Referee #1, 05 Jul 2019
- AC1: 'Data and Code', Caitlin Pries, 12 Jul 2019
- AC2: 'Author response', Caitlin Pries, 31 Jan 2020
RC2: 'Interesting patterns, speculative interpretation', Anonymous Referee #2, 04 Aug 2019
- AC3: 'Author response', Caitlin Pries, 31 Jan 2020

Peer-review completion

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

ED: Reconsider after major revisions (13 Feb 2020) by Michael Bahn

AR by Caitlin Pries on behalf of the Authors (09 Mar 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (21 Mar 2020) by Michael Bahn

RR by Anonymous Referee #2 (20 Apr 2020)

ED: Publish as is (28 Apr 2020) by Michael Bahn

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Short summary

The apparent respiration quotient (ARQ) changes according to which substrates microbes consume, allowing sources of soil respiration to be traced. In a forest soil warming experiment, ARQ had a strong seasonal pattern that reflected a shift from respiration being fueled by sugars and organic acids derived from roots during the growing season to respiration being fueled by dead microbes during winter. ARQ values also changed with experimental warming.