Legume-rice rotations increase rice yields and carbon sequestration potential globally

Yao Wei, Yang Yadong, Beillouin Damien, Zhao Jie, Olesen Jørgen Eivind, Zhou Jie, Smith Pete, Zeng Zhaohai, Lambers Hans, Rillig Matthias C., Wanger Thomas Cherico, Zang Huadong. 2025. Legume-rice rotations increase rice yields and carbon sequestration potential globally. One Earth, 8:101170, 10 p.

Url - jeu de données - Entrepôt autre : https://www.fao.org/soils-portal/data-hub/soil-maps-and-databases/harmonized-world-soil-database-v12/en/ / Url - jeu de données - Entrepôt autre : https://doi.org/10.6084/m9.figshare.26164030

Résumé : Rice feeds half of the world's population but faces the pressures of yield demand under increasing environmental and climate pressures. Diversified cropping systems such as legume-based rotations may be a viable solution, but rice yield responses and environmental implications have not been synthesized globally. Here, based on 1,483 data pairs covering 17 major rice production countries worldwide, we revealed that legume inclusion increased subsequent rice yields by an average of 15.7% globally. Yield gains were more pronounced under conservation tillage (+58.4%) than conventional tillage (+13.9%). These benefits decline with nitrogen fertilizer inputs, initial crop diversity, and current rice yield levels. When considering trade-offs, integrating legumes in rice rotations results in win-win benefits for rice yields and an increased soil organic carbon content in 65.8% of all cases. These findings highlight the potential of legume inclusion to not only enhance rice yields but also foster soil carbon sequestration, thereby paving the way for sustainable rice production with the added potential to mitigate climate change.

Mots-clés Agrovoc : rendement des cultures, séquestration du carbone, fertilisation, riz, changement climatique, Oryza sativa, atténuation des effets du changement climatique, rotation culturale, non-travail du sol, système de culture, politique de l'environnement, impact sur l'environnement, agroécologie, carbone, culture intercalaire

Mots-clés libres : Legumes, Rice yield, Carbon sequestration, Crop diversification, Crop rotation, Agricultural sustainability, Legume inclusion, Cover crop

Agences de financement hors UE : National Natural Science Foundation of China, National Key Research and Development Program of China, Hainan Provincial Natural Science Foundation

Auteurs et affiliations

• Yao Wei, CAU [China Agricultural University] (CHN)
• Yang Yadong, CAU [China Agricultural University] (CHN)
• Beillouin Damien, CIRAD-PERSYST-UPR HortSys (MTQ) ORCID: 0000-0003-2014-3482
• Zhao Jie, CAU [China Agricultural University] (CHN)
• Olesen Jørgen Eivind, AU (DNK)
• Zhou Jie, CAU [China Agricultural University] (CHN)
• Smith Pete, University of Aberdeen (GBR)
• Zeng Zhaohai, CAU [China Agricultural University] (CHN) - auteur correspondant
• Lambers Hans, University of Western Australia (AUS)
• Rillig Matthias C., Freie Universitaet Berlin (DEU)
• Wanger Thomas Cherico, Westlake University (CHN)
• Zang Huadong, CAU [China Agricultural University] (CHN) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/611529/)

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