Controls of terrestrial ecosystem nitrogen loss on simulated productivity responses to elevated CO<sub>2</sub>

Meyerholt, Johannes; Zaehle, Sönke

doi:https://doi.org/10.5194/bg-15-5677-2018

Articles | Volume 15, issue 18

https://doi.org/10.5194/bg-15-5677-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-15-5677-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 18

Research article

|

24 Sep 2018

Research article |

| 24 Sep 2018

Controls of terrestrial ecosystem nitrogen loss on simulated productivity responses to elevated CO₂

Johannes Meyerholt and Sönke Zaehle

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Final revised paper (published on 24 Sep 2018)
Preprint (discussion started on 04 Jun 2018)

Interactive discussion

Status: closed

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

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RC1: 'bg-2018-232', Anonymous Referee #1, 02 Jul 2018
- AC1: 'Response to Referee #1', Johannes Meyerholt, 01 Aug 2018
RC2: 'Interactive comment on “Controls of terrestrial ecosystem nitrogen loss on simulated productivity responses to elevated CO2”', Anonymous Referee #2, 05 Jul 2018
- AC2: 'Response to Referee #2', Johannes Meyerholt, 01 Aug 2018
RC3: 'Referee Comment on ‘Controls of terrestrial ecosystems nitrogen loss on simulated productivity responses to elevated CO2’', Anonymous Referee #3, 16 Jul 2018
- AC3: 'Response to Referee #3', Johannes Meyerholt, 01 Aug 2018

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (07 Aug 2018) by Fortunat Joos

AR by Johannes Meyerholt on behalf of the Authors (28 Aug 2018) Author's response Manuscript

ED: Publish subject to technical corrections (07 Sep 2018) by Fortunat Joos

AR by Johannes Meyerholt on behalf of the Authors (07 Sep 2018) Author's response Manuscript

Short summary

Terrestrial biosphere models employ various representations of ecosystem nitrogen loss, some based on soil N availability, some based on net N mineralization. We show in local and global simulations that this variety leads to pronounced uncertainty in the predicted magnitude and sign of ecosystem N loss change under elevated CO₂. Suprisingly, this uncertainty barely affects predicted carbon storage responses to elevated CO₂, illustrating the need for new benchmarks especially in the boreal zone.

Controls of terrestrial ecosystem nitrogen loss on simulated productivity responses to elevated CO2

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Interactive discussion

Peer-review completion

Controls of terrestrial ecosystem nitrogen loss on simulated productivity responses to elevated CO₂