Articles | Volume 15, issue 14
Biogeosciences, 15, 4301–4315, 2018
https://doi.org/10.5194/bg-15-4301-2018
Biogeosciences, 15, 4301–4315, 2018
https://doi.org/10.5194/bg-15-4301-2018

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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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.
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