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hal.structure.identifierInfoSol [InfoSol]
dc.contributor.authorMARTIN, Manuel
hal.structure.identifierInfoSol [InfoSol]
dc.contributor.authorDIMASSI, Bassem
hal.structure.identifierInfoSol [InfoSol]
dc.contributor.authorROMÁN DOBARCO, Mercedes
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
hal.structure.identifierModélisation des Surfaces et Interfaces Continentales [MOSAIC]
dc.contributor.authorGUENET, Bertrand
hal.structure.identifierInfoSol [InfoSol]
dc.contributor.authorARROUAYS, Dominique
hal.structure.identifierAgriculture and Agri-Food Canada, Saskatoon Research Centre
dc.contributor.authorANGERS, Denis
hal.structure.identifierLycée Pothier
dc.contributor.authorBLACHE, Fabrice
hal.structure.identifierAgroclim [AGROCLIM]
dc.contributor.authorHUARD, Frédéric
hal.structure.identifierCollège de Direction [CODIR]
dc.contributor.authorSOUSSANA, Jean‐françois
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorPELLERIN, Sylvain
dc.date.accessioned2024-04-08T11:51:37Z
dc.date.available2024-04-08T11:51:37Z
dc.date.issued2021-06
dc.identifier.issn1354-1013
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195440
dc.description.abstractEnIncreasing soil organic carbon (SOC) stocks is a promising way to mitigate the increase in atmospheric CO2 concentration. Based on a simple ratio between CO2 anthropogenic emissions and SOC stocks worldwide, it has been suggested that a 0.4% (4 per 1000) yearly increase in SOC stocks could compensate for current anthropogenic CO2 emissions. Here, we used a reverse RothC modelling approach to estimate the amount of C inputs to soils required to sustain current SOC stocks and to increase them by 4 parts per thousand per year over a period of 30 years. We assessed the feasibility of this aspirational target first by comparing the required C input with net primary productivity (NPP) flowing to the soil, and second by considering the SOC saturation concept. Calculations were performed for mainland France, at a 1 km grid cell resolution. Results showed that a 30%-40% increase in C inputs to soil would be needed to obtain a 4 parts per thousand increase per year over a 30-year period. 88.4% of cropland areas were considered unsaturated in terms of mineral-associated SOC, but characterized by a below target C balance, that is, less NPP available than required to reach the 4 parts per thousand aspirational target. Conversely, 90.4% of unimproved grasslands were characterized by an above target C balance, that is, enough NPP to reach the 4 parts per thousand objective, but 59.1% were also saturated. The situation of improved grasslands and forests was more evenly distributed among the four categories (saturated vs. unsaturated and above vs below target C balance). Future data from soil monitoring networks should enable to validate these results. Overall, our results suggest that, for mainland France, priorities should be (1) to increase NPP returns in cropland soils that are unsaturated and have a below target carbon balance and (2) to preserve SOC stocks in other land uses.
dc.description.sponsorshipCLAND : Changement climatique et usage des terres - ANR-16-CONV-0003
dc.language.isoen
dc.publisherWiley
dc.rights.urihttp://creativecommons.org/licenses/by-nc/
dc.subject.en4 per 1000
dc.subject.enclimate change mitigation
dc.subject.ennet primary productivity
dc.subject.enRothC
dc.subject.enSOC saturation
dc.subject.ensoil organic carbon
dc.title.enFeasibility of the 4 per 1000 aspirational target for soil carbon: A case study for France
dc.typeArticle de revue
dc.identifier.doi10.1111/gcb.15547
dc.subject.halPlanète et Univers [physics]/Océan, Atmosphère
dc.subject.halPlanète et Univers [physics]/Interfaces continentales, environnement
dc.subject.halSciences de l'environnement/Milieux et Changements globaux
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles
dc.description.sponsorshipEuropeIncreasing production efficiency and coping with climate change, while ensuring sustainability and resilience
bordeaux.journalGlobal Change Biology
bordeaux.page2458-2477
bordeaux.volume27
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue11
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03214059
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03214059v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Global%20Change%20Biology&rft.date=2021-06&rft.volume=27&rft.issue=11&rft.spage=2458-2477&rft.epage=2458-2477&rft.eissn=1354-1013&rft.issn=1354-1013&rft.au=MARTIN,%20Manuel&DIMASSI,%20Bassem&ROM%C3%81N%20DOBARCO,%20Mercedes&GUENET,%20Bertrand&ARROUAYS,%20Dominique&rft.genre=article


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