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Quantification of global and national nitrogen budgets for crop production

Nature Food volume 2, pages 529–540 (2021)Cite this article

Abstract

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.

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Fig. 1: Nitrogen budgets for crop production and resulting nitrogen species released to the environment.
Fig. 2: Global nitrogen budgets for crop production from various data sources.
Fig. 3: The estimates of nitrogen budget terms and land area by countries for 2000.
Fig. 4: Uncertainties in region-specific nitrogen budgets.
Fig. 5: Estimates of crop nitrogen content from different data sources.
Fig. 6: Examples of historical nitrogen records on a national scale.

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Data availability

Most data presented in this study are contained within the Supplementary Information. The benchmark datasets are available in the Supplementary Data. Other raw data supporting the findings of this study are available through Dryad (https://doi.org/10.5061/dryad.vt4b8gtrd) and from the corresponding authors upon reasonable request. Source data are provided with this paper.

Code availability

The code used to perform analyses in this study is generated in MATLAB 2016b and is available upon request.

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Acknowledgements

This work resulted in part from a workshop supported by NSF Research Coordination Network awards DEB-1049744/1547041 (awarded to E.D.). X.Z. is supported by the National Science Foundation (CNS-1739823, CBET-2047165, and CBET-2025826). K.N. is supported by a project, JPNP18016, commissioned by the New Energy and Industrial Technology Development Organization (NEDO). FAOSTAT Statistics are collected from FAO member countries, analysed and disseminated with support from the FAO Regular Budget. The views expressed in this publication are those of the authors and do not necessarily reflect the views or policies of the FAO. L.L. is supported by the Spanish Ministry of Economy and Competitiveness (MINECO) and European Commission ERDF Ramón y Cajal grant (RYC‐2016‐20269), Programa Propio from UPM, and acknowledges the Comunidad de Madrid (Spain) and structural funds 2014‐2020 (ERDF and ESF), project AGRISOST‐CM S2018/BAA‐4330 and Spanish MINECO AgroScena-UP (PID2019-107972RB-I00). We acknowledge the global Environment Facility and the UN Environment Programme for the ‘Towards INMS Project’ as a key space to improve understanding of the nitrogen cycle, building the bridge between science and policy.

Author information

Author notes

  1. These authors contributed equally: Xin Zhang, Tan Zou, Luis Lassaletta

Authors and Affiliations

  1. Appalachian Laboratory, University of Maryland Center for Environmental Science, Frostburg, MD, USA

    Xin Zhang, Tan Zou, Matthew D. Lisk & Eric A. Davidson

  2. CEIGRAM/Department of Agricultural Production, Universidad Politécnica de Madrid, Madrid, Spain

    Luis Lassaletta

  3. Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO, USA

    Nathaniel D. Mueller, Richard T. Conant & Christopher D. Dorich

  4. Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO, USA

    Nathaniel D. Mueller

  5. Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, USA

    Nathaniel D. Mueller

  6. Food and Agriculture Organization of the United Nations, Rome, Italy

    Francesco N. Tubiello & Nathan Wanner

  7. Iowa State University, Ames, IA, USA

    Chaoqun Lu

  8. Institute on the Environment, University of Minnesota, Minneapolis, MN, USA

    James Gerber

  9. International Center for Climate and Global Change Research, Auburn University, Auburn, AL, USA

    Hanqin Tian

  10. Plant Nutrition Canada, Guelph, Ontario, Canada

    Tom Bruulsema

  11. University of Hawaii at Manoa, Honolulu, HI, USA

    Tai McClellan Maaz

  12. Department of Crop and Soil Sciences, Washington State University, Seattle, WA, USA

    Tai McClellan Maaz

  13. National Institute for Environmental Studies, Tsukuba, Japan

    Kazuya Nishina

  14. Potsdam Institute for Climate Impact Research, Member of the Leibniz Association, Potsdam, Germany

    Benjamin Leon Bodirsky & Alexander Popp

  15. PBL Netherlands Environmental Assessment Agency, The Hague, The Netherlands

    Lex Bouwman & Arthur Beusen

  16. Department of Earth Sciences–Geochemistry, Faculty of Geosciences, Utrecht University, Utrecht, The Netherlands

    Lex Bouwman & Arthur Beusen

  17. Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China

    Lex Bouwman

  18. Biodiversity and Natural Resources (BNR) Program, International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria

    Jinfeng Chang, Petr Havlík & David Leclère

  19. College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China

    Jinfeng Chang

  20. Global Carbon Project, CSIRO Oceans and Atmosphere, Canberra, Australian Capital Territory, Australia

    Josep G. Canadell

  21. Department of Earth System Science, Stanford University, Stanford, CA, USA

    Robert B. Jackson

  22. International Fertilizer Association, Paris, France

    Patrick Heffer

  23. China Agricultural University, Beijing, China

    Weifeng Zhang

Authors
  1. Xin Zhang
  2. Tan Zou
  3. Luis Lassaletta
  4. Nathaniel D. Mueller
  5. Francesco N. Tubiello
  6. Matthew D. Lisk
  7. Chaoqun Lu
  8. Richard T. Conant
  9. Christopher D. Dorich
  10. James Gerber
  11. Hanqin Tian
  12. Tom Bruulsema
  13. Tai McClellan Maaz
  14. Kazuya Nishina
  15. Benjamin Leon Bodirsky
  16. Alexander Popp
  17. Lex Bouwman
  18. Arthur Beusen
  19. Jinfeng Chang
  20. Petr Havlík
  21. David Leclère
  22. Josep G. Canadell
  23. Robert B. Jackson
  24. Patrick Heffer
  25. Nathan Wanner
  26. Weifeng Zhang
  27. Eric A. Davidson

Contributions

X.Z., E.A.D. and L.L. designed the study. T.Z., X.Z. and M.D.L. carried out the analysis for data submitted by F.N.T, N.D.M., C.L., R.T.C., C.D.D., J.G., H.T., K.N., B.L.B., A.P., L.B., A.B., J.C., P.H. and D.L. X.Z., E.A.D. and L.L. wrote the paper with contributions from all authors. All authors reviewed and edited the manuscript.

Corresponding authors

Correspondence to Xin Zhang or Eric A. Davidson.

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Competing interests

The authors declare no competing interests.

Additional information

Peer review information Nature Food thanks Kentaro Hayashi, David Kanter and Wim de Vries for their contribution to the peer review of this work.

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary information

Supplementary Information

Supplementary Figs. 1–8 and Tables 1–8.

Supplementary Data 1

A benchmark for nitrogen budget estimates based on the median value and the range of nitrogen budget estimates used in this study.

Source data

Source Data Fig. 2

Statistical source data.

Source Data Fig. 3

Statistical source data.

Source Data Fig. 4

Statistical source data.

Source Data Fig. 5

Statistical source data.

Source Data Fig. 6

Statistical source data.

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Zhang, X., Zou, T., Lassaletta, L. et al. Quantification of global and national nitrogen budgets for crop production. Nat Food 2, 529–540 (2021). https://doi.org/10.1038/s43016-021-00318-5

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