Quantification of global and national nitrogen budgets for crop production

Zhang, Xin; Zou, Tan; Lassaletta, Luis; Mueller, Nathaniel D.; Tubiello, Francesco N.; Lisk, Matthew D.; Lu, Chaoqun; Conant, Richard T.; Dorich, Christopher D.; Gerber, James; Tian, Hanqin; Bruulsema, Tom; McClellan Maaz, Tai; Nishina, Kazuya; Bodirsky, Benjamin Leon; Popp, Alexander; Bouwman, Lex; Beusen, Arthur; Chang, Jinfeng; Havlík, Petr; Leclère, David; Canadell, Josep G.; Jackson, Robert B.; Heffer, Patrick; Wanner, Nathan; Zhang, Weifeng; Davidson, Eric A.

doi:10.1038/s43016-021-00318-5

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学術論文

Quantification of global and national nitrogen budgets for crop production

Authors

Zhang, Xin
External Organizations;

Zou, Tan
External Organizations;

Lassaletta, Luis
External Organizations;

Mueller, Nathaniel D.
External Organizations;

Tubiello, Francesco N.
External Organizations;

Lisk, Matthew D.
External Organizations;

Lu, Chaoqun
External Organizations;

Conant, Richard T.
External Organizations;

Dorich, Christopher D.
External Organizations;

Gerber, James
External Organizations;

Tian, Hanqin
External Organizations;

Bruulsema, Tom
External Organizations;

McClellan Maaz, Tai
External Organizations;

Nishina, Kazuya
External Organizations;

/persons/resource/Bodirsky

Bodirsky, Benjamin Leon
Potsdam Institute for Climate Impact Research;

/persons/resource/Alexander.Popp

Popp, Alexander
Potsdam Institute for Climate Impact Research;

Bouwman, Lex
External Organizations;

Beusen, Arthur
External Organizations;

Chang, Jinfeng
External Organizations;

Havlík, Petr
External Organizations;

Leclère, David
External Organizations;

Canadell, Josep G.
External Organizations;

Jackson, Robert B.
External Organizations;

Heffer, Patrick
External Organizations;

Wanner, Nathan
External Organizations;

Zhang, Weifeng
External Organizations;

Davidson, Eric A.
External Organizations;

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引用

Zhang, X., Zou, T., Lassaletta, L., Mueller, N. D., Tubiello, F. N., Lisk, M. D., Lu, C., Conant, R. T., Dorich, C. D., Gerber, J., Tian, H., Bruulsema, T., McClellan Maaz, T., Nishina, K., Bodirsky, B. L., Popp, A., Bouwman, L., Beusen, A., Chang, J., Havlík, P., Leclère, D., Canadell, J. G., Jackson, R. B., Heffer, P., Wanner, N., Zhang, W., & Davidson, E. A. (2021). Quantification of global and national nitrogen budgets for crop production. Nature Food, 2(2), 529-540. doi:10.1038/s43016-021-00318-5.

引用: https://publications.pik-potsdam.de/pubman/item/item_25658

要旨

Input–output estimates of nitrogen on cropland are essential for improving nitrogen management and better understanding the global nitrogen cycle. Here, we compare 13 nitrogen budget datasets covering 115 countries and regions over 1961–2015. Although most datasets showed similar spatiotemporal patterns, some annual estimates varied widely among them, resulting in large ranges and uncertainty. In 2010, global medians (in TgN yr−1) and associated minimum–maximum ranges were 73 (64–84) for global harvested crop nitrogen; 161 (139–192) for total nitrogen inputs; 86 (68–97) for nitrogen surplus; and 46% (40–53%) for nitrogen use efficiency. Some of the most uncertain nitrogen budget terms by country showed ranges as large as their medians, revealing areas for improvement. A benchmark nitrogen budget dataset, derived from central tendencies of the original datasets, can be used in model comparisons and inform sustainable nitrogen management in food systems.