Resource and physiological constraints on global  crop production enhancements from atmospheric  particulate matter and nitrogen deposition

Schiferl, Luke D.; Heald, Colette L.; Kelly, David

doi:https://doi.org/10.5194/bg-15-4301-2018

Articles | Volume 15, issue 14

Biogeosciences, 15, 4301–4315, 2018

https://doi.org/10.5194/bg-15-4301-2018

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

Biogeosciences, 15, 4301–4315, 2018

https://doi.org/10.5194/bg-15-4301-2018

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

Articles | Volume 15, issue 14

Research article 17 Jul 2018

Research article | 17 Jul 2018

Resource and physiological constraints on global crop production enhancements from atmospheric particulate matter and nitrogen deposition

Luke D. Schiferl et al.

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Final revised paper (published on 17 Jul 2018)
Preprint (discussion started on 20 Mar 2018)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Comments from Reviewer', Anonymous Referee #1, 12 Apr 2018
- AC2: 'Reply to Referees Comments', Luke Schiferl, 31 May 2018
RC2: 'Review of Resource and physiological constraints on global crop production enhancements from atmospheric particulate matter and nitrogen deposition, by Schirfel et al., 2018', Anonymous Referee #2, 18 Apr 2018
- AC2: 'Reply to Referees Comments', Luke Schiferl, 31 May 2018
SC1: 'Interactive comment on “Resource and physiological constraints on global crop production enhancements from ...', Michael W. I. Schmidt, 30 Apr 2018
- AC1: 'Reply to SC1', Luke Schiferl, 31 May 2018

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (19 Jun 2018) by Trevor Keenan

AR by Luke Schiferl on behalf of the Authors (27 Jun 2018) Author's response Manuscript

ED: Publish as is (29 Jun 2018) by Trevor Keenan

Short summary

To understand future food security, it is critical to develop realistic crop models with reliable sensitivity to environmental factors. We find that particulate matter (PM) causes a significant, but smaller, enhancement for global wheat and rice production than estimated without nutrient and physiological limitations imposed by a crop model. In contrast, maize grows near its physiological maximum, with little enhancement from PM. Nitrogen deposition leads to a small increase in crop production.