Rainfall intensification increases the contribution of rewetting pulses to soil heterotrophic respiration

Manzoni, Stefano; Chakrawal, Arjun; Fischer, Thomas; Schimel, Joshua P.; Porporato, Amilcare; Vico, Giulia

doi:https://doi.org/10.5194/bg-17-4007-2020

Articles | Volume 17, issue 15

https://doi.org/10.5194/bg-17-4007-2020

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

https://doi.org/10.5194/bg-17-4007-2020

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

Articles | Volume 17, issue 15

Research article

| Highlight paper

|

10 Aug 2020

Research article | Highlight paper |

| 10 Aug 2020

Rainfall intensification increases the contribution of rewetting pulses to soil heterotrophic respiration

Stefano Manzoni, Arjun Chakrawal, Thomas Fischer, Joshua P. Schimel, Amilcare Porporato, and Giulia Vico

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Final revised paper (published on 10 Aug 2020)
Preprint (discussion started on 06 Apr 2020)

Interactive discussion

Status: closed

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

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RC1: 'Revision', Anonymous Referee #1, 14 Apr 2020
- AC1: 'Response to Anonymous Referee #1', Stefano Manzoni, 22 Apr 2020
RC2: 'Review of Manzoni et al.', Anonymous Referee #2, 02 Jun 2020
- AC2: 'Response to Anonymous Referee #2', Stefano Manzoni, 05 Jun 2020

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (10 Jun 2020) by Frank Hagedorn

AR by Stefano Manzoni on behalf of the Authors (17 Jun 2020) Author's response Manuscript

ED: Publish as is (23 Jun 2020) by Frank Hagedorn

Short summary

Carbon dioxide is produced by soil microbes through respiration, which is particularly fast when soils are moistened by rain. Will respiration increase with future more intense rains and longer dry spells? With a mathematical model, we show that wetter conditions increase respiration. In contrast, if rainfall totals stay the same, but rain comes all at once after long dry spells, the average respiration will not change, but the contribution of the respiration bursts after rain will increase.