Crop rotational diversity can mitigate climate-induced grain yield losses

Crop rotational diversity can mitigate climate-induced grain yield losses

Global Change Biology© 2024 His Majesty the King in Right of Canada and The Authors. Global Change Biology published by John Wiley & Sons Ltd. Reproduced with the permission of the Minister of Agriculture & Agri-Food Canada. This article has been contributed to by U.S. Government employees a...

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Veröffentlicht in:Global change biology. - 1999. - 30(2024), 5 vom: 07. Mai, Seite e17298
1. Verfasser: Costa, Alessio (VerfasserIn)
Weitere Verfasser: Bommarco, Riccardo, Smith, Monique E, Bowles, Timothy, Gaudin, Amélie C M, Watson, Christine A, Alarcón, Remedios, Berti, Antonio, Blecharczyk, Andrzej, Calderon, Francisco J, Culman, Steve, Deen, William, Drury, Craig F, Garcia Y Garcia, Axel, García-Díaz, Andrés, Hernández Plaza, Eva, Jonczyk, Krzysztof, Jäck, Ortrud, Navarrete Martínez, Luis, Montemurro, Francesco, Morari, Francesco, Onofri, Andrea, Osborne, Shannon L, Tenorio Pasamón, José Luis, Sandström, Boël, Santín-Montanyá, Inés, Sawinska, Zuzanna, Schmer, Marty R, Stalenga, Jaroslaw, Strock, Jeffrey, Tei, Francesco, Topp, Cairistiona F E, Ventrella, Domenico, Walker, Robin L, Vico, Giulia
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Europe North America climate change adaptation climate resilience crop diversification long‐term experiments sustainable agriculture
Beschreibung
Zusammenfassung:Global Change Biology© 2024 His Majesty the King in Right of Canada and The Authors. Global Change Biology published by John Wiley & Sons Ltd. Reproduced with the permission of the Minister of Agriculture & Agri-Food Canada. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.
Diversified crop rotations have been suggested to reduce grain yield losses from the adverse climatic conditions increasingly common under climate change. Nevertheless, the potential for climate change adaptation of different crop rotational diversity (CRD) remains undetermined. We quantified how climatic conditions affect small grain and maize yields under different CRDs in 32 long-term (10-63 years) field experiments across Europe and North America. Species-diverse and functionally rich rotations more than compensated yield losses from anomalous warm conditions, long and warm dry spells, as well as from anomalous wet (for small grains) or dry (for maize) conditions. Adding a single functional group or crop species to monocultures counteracted yield losses from substantial changes in climatic conditions. The benefits of a further increase in CRD are comparable with those of improved climatic conditions. For instance, the maize yield benefits of adding three crop species to monocultures under detrimental climatic conditions exceeded the average yield of monocultures by up to 553 kg/ha under non-detrimental climatic conditions. Increased crop functional richness improved yields under high temperature, irrespective of precipitation. Conversely, yield benefits peaked at between two and four crop species in the rotation, depending on climatic conditions and crop, and declined at higher species diversity. Thus, crop species diversity could be adjusted to maximize yield benefits. Diversifying rotations with functionally distinct crops is an adaptation of cropping systems to global warming and changes in precipitation
Beschreibung:Date Completed 07.05.2024
Date Revised 07.05.2024
published: Print
Citation Status MEDLINE
ISSN:1365-2486
DOI:10.1111/gcb.17298