Current controversies on mechanisms controlling soil carbon storage: implications for interactions with practitioners and policy-makers. A review.
Big data
Biomass use
Carbon storage
Chemical recalcitrance
Inaccessibility
Management practices
Models
POM
Journal
Agronomy for sustainable development
ISSN: 1774-0746
Titre abrégé: Agron Sustain Dev
Pays: France
ID NLM: 101691456
Informations de publication
Date de publication:
2023
2023
Historique:
accepted:
16
01
2023
entrez:
13
2
2023
pubmed:
14
2
2023
medline:
14
2
2023
Statut:
ppublish
Résumé
There is currently an intense debate about the potential for additional organic carbon storage in soil, the strategies by which it may be accomplished and what the actual benefits might be for agriculture and the climate. Controversy forms an essential part of the scientific process, but on the topic of soil carbon storage, it may confuse the agricultural community and the general public and may delay actions to fight climate change. In an attempt to shed light on this topic, the originality of this article lies in its intention to provide a balanced description of contradictory scientific opinions on soil carbon storage and to examine how the scientific community can support decision-making despite the controversy. In the first part, we review and attempt to reconcile conflicting views on the mechanisms controlling organic carbon dynamics in soil. We discuss the divergent opinions about chemical recalcitrance, the microbial or plant origin of persistent soil organic matter, the contribution of particulate organic matter to additional organic carbon storage in soil, and the spatial and energetic inaccessibility of soil organic matter to decomposers. In the second part, we examine the advantages and limitations of big data management and modeling, which are essential tools to link the latest scientific theories with the actions taken by stakeholders. Finally, we show how the analysis and discussion of controversies can guide scientists in supporting stakeholders for the design of (i) appropriate trade-offs for biomass use in agriculture and forestry and (ii) climate-smart management practices, keeping in mind their still unresolved effects on soil carbon storage.
Identifiants
pubmed: 36777236
doi: 10.1007/s13593-023-00876-x
pii: 876
pmc: PMC9901420
doi:
Types de publication
Journal Article
Review
Langues
eng
Pagination
21Informations de copyright
© The Author(s) 2023.
Déclaration de conflit d'intérêts
Conflict of interestThe authors declare no competing interests.
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