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Global option space for organic agriculture is delimited by nitrogen availability

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorBARBIERI, Pietro
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorPELLERIN, Sylvain
hal.structure.identifierVrije Universiteit Amsterdam [Amsterdam] [VU]
dc.contributor.authorSEUFERT, Verena
hal.structure.identifierRoyal Agricultural University [RAU]
dc.contributor.authorSMITH, Laurence
hal.structure.identifierUniversity of British Columbia [UBC]
dc.contributor.authorRAMANKUTTY, Navin
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorNESME, Thomas
dc.date.accessioned2024-04-08T11:51:19Z
dc.date.available2024-04-08T11:51:19Z
dc.date.issued2021-05
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195426
dc.description.abstractEnOrganic agriculture is widely accepted as a strategy to reduce the environmental impacts of food production and help achieve global climate and biodiversity targets. However, studies concluding that organic farming could satisfy global food demand have overlooked the key role that nitrogen plays in sustaining crop yields. Using a spatially explicit biophysical optimization model that accounts for crop growth nitrogen requirements, we show that, in the absence of synthetic nitrogen fertilizers, the production gap between organic and conventional agriculture increases as organic agriculture expands globally (with organic producing 36% less food for human consumption than conventional in a fully organic world). Yet, by targeting both food supply (via a redesign of the livestock sector) and demand (by reducing average per capita caloric intake), public policies could support a transition towards organic agriculture in 40-60% of the global agricultural area even under current nitrogen limitations thus helping to achieve important environmental and health benefits. The ability of organic agriculture to feed the world population remains contentious. A biophysical optimization model indicates the extent to which nitrogen availability could limit the expansion of organic production systems and what measures could alleviate this limitation.
dc.language.isoen
dc.publisherNature
dc.subjectAgriculture Biologique
dc.subjectAzote
dc.subjectRendement des cultures
dc.title.enGlobal option space for organic agriculture is delimited by nitrogen availability
dc.typeArticle de revue
dc.identifier.doi10.1038/s43016-021-00276-y
dc.subject.halSciences de l'environnement
bordeaux.journalNature Food
bordeaux.page363-372
bordeaux.volume2
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue5
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03251424
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03251424v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nature%20Food&rft.date=2021-05&rft.volume=2&rft.issue=5&rft.spage=363-372&rft.epage=363-372&rft.au=BARBIERI,%20Pietro&PELLERIN,%20Sylvain&SEUFERT,%20Verena&SMITH,%20Laurence&RAMANKUTTY,%20Navin&rft.genre=article


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