Implementation of nitrogen cycle in the CLASSIC land model

Asaadi, Ali; Arora, Vivek K.

doi:https://doi.org/10.5194/bg-18-669-2021

Articles | Volume 18, issue 2

https://doi.org/10.5194/bg-18-669-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-18-669-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 2

Research article

|

29 Jan 2021

Research article |

| 29 Jan 2021

Implementation of nitrogen cycle in the CLASSIC land model

Ali Asaadi and Vivek K. Arora

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Final revised paper (published on 29 Jan 2021)
Preprint (discussion started on 14 May 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Consider discussing results in light of existing model alternate 'philosophies'', Anonymous Referee #1, 08 Jun 2020
- AC1: 'Response to reviewer #1's comments', Vivek Arora, 21 Jul 2020
RC2: 'N cycle included into an LSM, but no real analysis of how N limits GPP', David Wårlind, 18 Jun 2020
- AC2: 'Response to reviewer #2's comments', Vivek Arora, 21 Jul 2020

Peer-review completion

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

ED: Reconsider after major revisions (21 Jul 2020) by Sönke Zaehle

AR by Vivek Arora on behalf of the Authors (22 Sep 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (19 Oct 2020) by Sönke Zaehle

RR by David Wårlind (26 Oct 2020)

RR by Anonymous Referee #1 (16 Nov 2020)

ED: Publish subject to technical corrections (24 Nov 2020) by Sönke Zaehle

AR by Vivek Arora on behalf of the Authors (03 Dec 2020) Author's response Manuscript

Short summary

More than a quarter of the current anthropogenic CO₂ emissions are taken up by land, reducing the atmospheric CO₂ growth rate. This is because of the CO₂ fertilization effect which benefits 80 % of global vegetation. However, if nitrogen and phosphorus nutrients cannot keep up with increasing atmospheric CO₂, the magnitude of this terrestrial ecosystem service may reduce in future. This paper implements nitrogen constraints on photosynthesis in a model to understand the mechanisms involved.