Modelling the demand for new nitrogen fixation by terrestrial ecosystems

Xu-Ri,; Prentice, I. Colin

doi:https://doi.org/10.5194/bg-14-2003-2017

Articles | Volume 14, issue 7

https://doi.org/10.5194/bg-14-2003-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/bg-14-2003-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 14, issue 7

Research article

|

12 Apr 2017

Research article |

| 12 Apr 2017

Modelling the demand for new nitrogen fixation by terrestrial ecosystems

Xu-Ri and I. Colin Prentice

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Final revised paper (published on 12 Apr 2017)
Preprint (discussion started on 14 Nov 2016)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review', Anonymous Referee #1, 16 Nov 2016
- AC1: 'Responses to Referee #1', Xu-Ri Xu-Ri, 14 Feb 2017
RC2: 'Review', Anonymous Referee #2, 07 Feb 2017
- AC2: 'Responses to Referee#2', Xu-Ri Xu-Ri, 14 Feb 2017

Peer-review completion

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

ED: Publish subject to minor revisions (Editor review) (14 Feb 2017) by Mathew Williams

AR by Xu-Ri Xu-Ri on behalf of the Authors (25 Feb 2017) Author's response Manuscript

ED: Publish as is (27 Feb 2017) by Mathew Williams

AR by Xu-Ri Xu-Ri on behalf of the Authors (01 Mar 2017)

Short summary

We estimated the global demand for new N fixation (NNF) by terrestrial ecosystem using a DyN-LPJ model. Modelled NPP and C : N ratios of litter and soil organic matter were consistent with independent estimates. Modelled NNF was sensitive to the fraction of litter carbon respired to CO₂ during decomposition and plant-type-specific C : N ratios of litter and soil. The modelled annual NNF increased 15% due to increasing CO₂, while the future capacity of N sources to support this is unknown.