Warming increases soil respiration in a carbon-rich soil without changing microbial respiratory potential

Nyberg, Marion; Hovenden, Mark J.

doi:https://doi.org/10.5194/bg-17-4405-2020

Articles | Volume 17, issue 17

https://doi.org/10.5194/bg-17-4405-2020

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

https://doi.org/10.5194/bg-17-4405-2020

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

Articles | Volume 17, issue 17

Research article

|

02 Sep 2020

Research article |

| 02 Sep 2020

Warming increases soil respiration in a carbon-rich soil without changing microbial respiratory potential

Marion Nyberg and Mark J. Hovenden

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Final revised paper (published on 02 Sep 2020)
Supplement to the final revised paper
Preprint (discussion started on 25 May 2020)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'bg-2020-144 Review', Anonymous Referee #1, 03 Jun 2020
- AC1: 'Response to reviewers', Marion Nyberg, 28 Jul 2020
RC2: 'Nice paper - some minor comments', Anonymous Referee #2, 08 Jun 2020
- AC2: 'Response to reviewers', Marion Nyberg, 28 Jul 2020

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (28 Jul 2020) by Jens-Arne Subke

AR by Marion Nyberg on behalf of the Authors (28 Jul 2020) Author's response Manuscript

ED: Publish as is (30 Jul 2020) by Jens-Arne Subke

AR by Marion Nyberg on behalf of the Authors (03 Aug 2020)

Short summary

Experimental warming increased soil respiration (R_S) by more than 25 % in a Tasmanian C-rich soil, but there was no impact on microbial respiration in laboratory experiments. Plant community composition had no effect on R_S, suggesting the response is likely due to enhanced belowground plant respiration and C supply through rhizodeposition and root exudates. Results imply we need studies of both C inputs and losses to model net ecosystem C exchange of these crucial, C-dense systems effectively.