Comparison of CO2 and O2 fluxes demonstrate retention of respired CO2 in tree stems from a range of tree species

Hilman, Boaz; Muhr, Jan; Trumbore, Susan E.; Kunert, Norbert; Carbone, Mariah S.; Yuval, Päivi; Wright, S. Joseph; Moreno, Gerardo; Pérez-Priego, Oscar; Migliavacca, Mirco; Carrara, Arnaud; Grünzweig, José M.; Osem, Yagil; Weiner, Tal; Angert, Alon

doi:https://doi.org/10.5194/bg-16-177-2019

Articles | Volume 16, issue 1

https://doi.org/10.5194/bg-16-177-2019

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

https://doi.org/10.5194/bg-16-177-2019

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

Articles | Volume 16, issue 1

Research article

|

17 Jan 2019

Research article |

| 17 Jan 2019

Comparison of CO₂ and O₂ fluxes demonstrate retention of respired CO₂ in tree stems from a range of tree species

Boaz Hilman, Jan Muhr, Susan E. Trumbore, Norbert Kunert, Mariah S. Carbone, Päivi Yuval, S. Joseph Wright, Gerardo Moreno, Oscar Pérez-Priego, Mirco Migliavacca, Arnaud Carrara, José M. Grünzweig, Yagil Osem, Tal Weiner, and Alon Angert

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Final revised paper (published on 17 Jan 2019)
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Preprint (discussion started on 25 Jun 2018)
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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: 'Well written, may need some reconsideration of analytical approach', Anonymous Referee #1, 18 Sep 2018
- AC1: 'Reply to reviewer comment', Boaz Hilman, 27 Sep 2018
RC2: 'Review of “Comparison of Co2 and O2 fluxes demonstrate retention of respired Co2 in tree stems from a range of species”', Anonymous Referee #2, 12 Oct 2018
- AC2: 'Reply to reviewer comment', Boaz Hilman, 27 Oct 2018

Peer-review completion

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

ED: Reconsider after major revisions (29 Oct 2018) by Paul Stoy

AR by Anna Wenzel on behalf of the Authors (03 Dec 2018) Author's response Manuscript

ED: Referee Nomination & Report Request started (11 Dec 2018) by Paul Stoy

RR by Anonymous Referee #2 (02 Jan 2019)

ED: Publish subject to technical corrections (03 Jan 2019) by Paul Stoy

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Short summary

Combined measurement of CO₂ / O₂ fluxes in tree stems suggested that on average 41 % of the respired CO₂ was not emitted locally to the atmosphere. This finding strengthens the recognition that CO₂ efflux from tree stems is not an accurate measure of respiration. The CO₂ / O₂ fluxes did not vary as expected if CO₂ dissolution in the xylem sap was the main driver for the CO₂ retention. We suggest the examination of refixation of respired CO₂ as a possible mechanism for CO₂ retention.