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


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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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
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.
Final-revised paper