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  Redistribution of nitrogen to feed the people on a safer planet

Kahiluoto, H., Sakieh, Y., Kaseva, J., Kersebaum, K.-C., Minoli, S., Franke, J., Rötter, R. P., Müller, C. (2024): Redistribution of nitrogen to feed the people on a safer planet. - PNAS Nexus, 3, 5, pgae170.
https://doi.org/10.1093/pnasnexus/pgae170

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https://zenodo.org/doi/10.5281/zenodo.10965952 (Supplementary material)
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 Creators:
Kahiluoto, Helena1, Author
Sakieh, Yousef1, Author
Kaseva, Janne1, Author
Kersebaum, Kurt-Christian1, Author
Minoli, Sara2, Author              
Franke, James1, Author
Rötter, Reimund P.1, Author
Müller, Christoph2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Potsdam Institute for Climate Impact Research, ou_persistent13              

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Free keywords: food security, nitrogen, planetary boundaries, redistribution
 Abstract: Lack of nitrogen limits food production in poor countries while excessive nitrogen use in industrial countries has led to transgression of the planetary boundary. However, the potential of spatial redistribution of nitrogen input for food security when returning to the safe boundary has not been quantified in a robust manner. Using an emulator of a global gridded crop model ensemble, we found that redistribution of current nitrogen input to major cereals among countries can double production in the most food insecure countries, while increasing global production of these crops by 12% with no notable regional loss or reducing the nitrogen input to the current production by one third. Redistribution of the input within the boundary increased production by 6–8% compared to the current relative distribution, increasing production in the food insecure countries by two thirds. Our findings provide georeferenced guidelines for redistributing nitrogen use to enhance food security while safeguarding the planet.

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Language(s): eng - English
 Dates: 2023-10-032024-04-082024-05-142024-05-14
 Publication Status: Finally published
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: Organisational keyword: RD2 - Climate Resilience
PIKDOMAIN: RD2 - Climate Resilience
Working Group: Land Use and Resilience
MDB-ID: No MDB - stored outside PIK (see DOI)
Research topic keyword: Land use
Research topic keyword: Food & Agriculture
Regional keyword: Global
Model / method: LPJmL
OATYPE: Gold Open Access
DOI: 10.1093/pnasnexus/pgae170
 Degree: -

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Title: PNAS Nexus
Source Genre: Journal, other, oa
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Pages: - Volume / Issue: 3 (5) Sequence Number: pgae170 Start / End Page: - Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/2752-6542
Publisher: Oxford University Press