Long-Term Evidence Shows that Crop-Rotation Diversification Increases Agricultural Resilience to Adverse Growing Conditions in North America
Type de document
journalArticle
Langue source
-- Langue source --
Titre
Long-Term Evidence Shows that Crop-Rotation Diversification Increases Agricultural Resilience to Adverse Growing Conditions in North America
Titre français
Titre anglais
Auteur(s)
- BOWLES Timothy M.
- MOOSHAMMER Maria
- SOCOLAR Yvonne
- CALDERÓN Francisco
- CAVIGELLI Michel A.
- CULMAN Steve W.
- DEEN William
- DRURY Craig F.
- GARCIA Y GARCIA Axel
- GAUDIN Amélie C. M.
- HARKCOM W. Scott
- LEHMAN R. Michael
- OSBORNE Shannon L.
- ROBERTSON G. Philip
- SALERNO Jonathan
- SCHMER Marty R.
- STROCK Jeffrey
- GRANDY A. Stuart
Editeur(s)
Autre(s)
Id
RVQTLXMD
Version
2553
Date ajout
12 mars 2021 19:55
Date modification
12 mars 2021 19:55
Résumé
A grand challenge facing humanity is how to produce food for a growing population in the face of a changing climate and environmental degradation. Although empirical evidence remains sparse, management strategies that increase environmental sustainability, such as increasing agroecosystem diversity through crop rotations, may also increase resilience to weather extremes without sacrificing yields. We used multilevel regression analyses of long-term crop yield datasets across a continental precipitation gradient to assess how temporal crop diversification affects maize yields in intensively managed grain systems. More diverse rotations increased maize yields over time and across all growing conditions (28.1% on average), including in favorable conditions (22.6%). Notably, more diverse rotations also showed positive effects on yield under unfavorable conditions, whereby yield losses were reduced by 14.0%–89.9% in drought years. Systems approaches to environmental sustainability and yield resilience, such as crop-rotation diversification, are a central component of risk-reduction strategies and should inform the enablement of policies.
Note
None
CRAW tags
- AB - Utile à l'AB
- FREDO durabilité
- FREDO rotation culturale
- GEO Etats-Unis
WEB tags
- climate variability
- crop diversity
- crop rotation
- diversified farming systems
- drought
- long-term experiment
- maize
- resilience
Titre de la publication
One Earth
Volume
2
Pages
284-293
Date caractères
March 20, 2020
Date publication
20 mars 2020
Doi
10.1016/j.oneear.2020.02.007
Le DOI est une URL unique de référencement d'une publication.
Il est donc plus fiable et permanent qu'une URL classique
Issn
2590-3322
L’ISSN est un code de 8 chiffres servant à identifier
les journaux, revues, magazines, périodiques de toute nature et
sur tous supports, papier comme électronique.