The importance of physiological, structural and trait responses to drought stress in driving spatial and temporal variation in GPP across Amazon forests

Flack-Prain, Sophie; Meir, Patrick; Malhi, Yadvinder; Smallman, Thomas Luke; Williams, Mathew

doi:https://doi.org/10.5194/bg-16-4463-2019

Articles | Volume 16, issue 22

Biogeosciences, 16, 4463–4484, 2019

https://doi.org/10.5194/bg-16-4463-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Biogeosciences, 16, 4463–4484, 2019

https://doi.org/10.5194/bg-16-4463-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 22

Research article 25 Nov 2019

Research article | 25 Nov 2019

The importance of physiological, structural and trait responses to drought stress in driving spatial and temporal variation in GPP across Amazon forests

Sophie Flack-Prain et al.

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Final revised paper (published on 25 Nov 2019)
Supplement to the final revised paper
Preprint (discussion started on 27 May 2019)
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: 'Referee comments to bg-2019-175', Anonymous Referee #1, 18 Jun 2019
- AC1: 'Author Response to Reviewer Comments', Sophie Flack-Prain, 22 Jul 2019
RC2: 'Referee comments', Anonymous Referee #2, 06 Jul 2019
- AC2: 'Author Response to Reviewer Comments', Sophie Flack-Prain, 22 Jul 2019

Peer-review completion

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

ED: Reconsider after major revisions (22 Jul 2019) by Andreas Ibrom

AR by Sophie Flack-Prain on behalf of the Authors (20 Aug 2019) Author's response Manuscript

ED: Reconsider after major revisions (21 Aug 2019) by Andreas Ibrom

AR by Sophie Flack-Prain on behalf of the Authors (11 Sep 2019) Author's response Manuscript

ED: Referee Nomination & Report Request started (28 Sep 2019) by Andreas Ibrom

RR by Anonymous Referee #1 (04 Oct 2019)

ED: Publish as is (14 Oct 2019) by Andreas Ibrom

Short summary

Across the Amazon rainforest, trees take in carbon through photosynthesis. However, photosynthesis across the basin is threatened by predicted shifts in rainfall patterns. To unpick how changes in rainfall affect photosynthesis, we use a model which combines climate data with our knowledge of photosynthesis and other plant processes. We find that stomatal constraints are less important, and instead shifts in leaf surface area and leaf properties drive changes in photosynthesis with rainfall.