Articles | Volume 19, issue 14
https://doi.org/10.5194/bg-19-3491-2022
https://doi.org/10.5194/bg-19-3491-2022
Research article
 | 
27 Jul 2022
Research article |  | 27 Jul 2022

Assessment of the impacts of biological nitrogen fixation structural uncertainty in CMIP6 earth system models

Taraka Davies-Barnard, Sönke Zaehle, and Pierre Friedlingstein

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on bg-2021-290', Anonymous Referee #1, 06 Dec 2021
  • RC2: 'Comment on bg-2021-290', Anonymous Referee #2, 14 Mar 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (01 Apr 2022) by Alexey V. Eliseev
AR by Taraka Davies-Barnard on behalf of the Authors (01 Apr 2022)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (12 Apr 2022) by Alexey V. Eliseev
RR by Anonymous Referee #1 (20 May 2022)
RR by Anonymous Referee #3 (06 Jun 2022)
ED: Publish subject to minor revisions (review by editor) (15 Jun 2022) by Alexey V. Eliseev
AR by Taraka Davies-Barnard on behalf of the Authors (18 Jun 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (25 Jun 2022) by Alexey V. Eliseev
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Short summary
Biological nitrogen fixation is the largest natural input of new nitrogen onto land. Earth system models mainly represent global total terrestrial biological nitrogen fixation within observational uncertainties but overestimate tropical fixation. The model range of increase in biological nitrogen fixation in the SSP3-7.0 scenario is 3 % to 87 %. While biological nitrogen fixation is a key source of new nitrogen, its predictive power for net primary productivity in models is limited.
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