Articles | Volume 17, issue 14
https://doi.org/10.5194/bg-17-3903-2020
https://doi.org/10.5194/bg-17-3903-2020
Research article
 | 
31 Jul 2020
Research article |  | 31 Jul 2020

Leaf-scale quantification of the effect of photosynthetic gas exchange on Δ17O of atmospheric CO2

Getachew Agmuas Adnew, Thijs L. Pons, Gerbrand Koren, Wouter Peters, and Thomas Röckmann

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ED: Reconsider after major revisions (20 May 2020) by Aninda Mazumdar
AR by Getachew Adnew on behalf of the Authors (22 May 2020)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (05 Jun 2020) by Aninda Mazumdar
RR by Anonymous Referee #2 (17 Jun 2020)
ED: Publish as is (18 Jun 2020) by Aninda Mazumdar
AR by Getachew Adnew on behalf of the Authors (22 Jun 2020)  Manuscript 
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Short summary
We measured the effect of photosynthesis, the largest flux in the carbon cycle, on the triple oxygen isotope composition of atmospheric CO2 at the leaf level during gas exchange using three plant species. The main factors that limit the impact of land vegetation on the triple oxygen isotope composition of atmospheric CO2 are identified, characterized and discussed. The effect of photosynthesis on the isotopic composition of CO2 is commonly quantified as discrimination (ΔA).
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