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, Colette L. Heald, and David Kelly

Data sets

HEMCO emissions data GEOS-Chem Support Team data_download

The parallel system for integrating impact models and sectors (pSIMS) J. Elliott, D. Kelly, J. Chryssanthacopoulos, M. Glotter, K. Jhunjhnuwala, N. Best, M. Wilde, and I. Foster

Decision Support System for Agrotechnology Transfer (DSSAT) Version 4.6 G. Hoogenboom, J. W. Jones, P. W. Wilkens, C. H. Porter, K. J. Boote, L. A. Hunt, U. Singh, J. I. Lizaso, J. W. White, O. Uryasev, R. Ogoshi, J. Koo, V. Shelia, and G. Y. Tsuji

Global Agro-Ecological Zones (GAEZ) FAO

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.
Final-revised paper