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


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: 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.
Final-revised paper