Positive but variable effects of crop diversification on biodiversity and ecosystem services

Autor: Verena Seufert, Tamara Ben-Ari, David Makowski, Damien Beillouin, Eric Malézieux
Přispěvatelé: Fonctionnement agroécologique et performances des systèmes de cultures horticoles (UPR HORTSYS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris ), Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Agronomie, AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Vrije Universiteit Amsterdam [Amsterdam] (VU), Mathématiques et Informatique Appliquées (MIA Paris-Saclay), Environmental Geography, Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Mathématiques et Informatique Appliquées (MIA-Paris), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-AgroParisTech-Université Paris-Saclay
Jazyk: angličtina
Rok vydání: 2021
Předmět:
0106 biological sciences
Agroecosystem
Rotation culturale
010504 meteorology & atmospheric sciences
agrobiodiversité
F08 - Systèmes et modes de culture
agroécologie
Biodiversity
[SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy
Agroforesterie
01 natural sciences
rotation
Ecosystem services
agroforestry
Soil
agrobiodiversity
[MATH.MATH-ST]Mathematics [math]/Statistics [math.ST]
Cover crop
ComputingMilieux_MISCELLANEOUS
General Environmental Science
SDG 15 - Life on Land
2. Zero hunger
Global and Planetary Change
Ecology
biology
Agricultural diversification
Agroforestry
food and beverages
Agriculture
Intercropping
04 agricultural and veterinary sciences
Rendement des cultures
Geography
Agroécosystème
Diversification
P01 - Conservation de la nature et ressources foncières
Biodiversité
Culture associée
Crops
Agricultural
Sustainable land management
010603 evolutionary biology
Culture intercalaire
crop rotation
Plante de couverture
Culture en mélange
Environmental Chemistry
Animals
Ecosystem
0105 earth and related environmental sciences
meta-synthesis
fungi
Évaluation de l'impact
15. Life on land
Crop rotation
biology.organism_classification
Soil quality
services écosystémiques
research synthesis
040103 agronomy & agriculture
0401 agriculture
forestry
and fisheries
Agricultural biodiversity
ecosystem services
intercropping
Zdroj: Global Change Biology
Global Change Biology, Wiley, 2021, ⟨10.1111/gcb.15747⟩
Global Change Biology, 27(19), 4697-4710. Wiley-Blackwell Publishing
Beillouin, D, Ben-Ari, T, Malézieux, E, Seufert, V & Makowski, D 2021, ' Positive but variable effects of crop diversification on biodiversity and ecosystem services ', Global Change Biology, vol. 27, no. 19, pp. 4697-4710 . https://doi.org/10.1111/gcb.15747
ISSN: 1354-1013
1365-2486
DOI: 10.1111/gcb.15747⟩
Popis: Ecological theory suggests that biodiversity has a positive and stabilizing effect on the delivery of ecosystem services. Yet, the impacts of increasing the diversity of cultivated crop species or varieties in agroecosystems are still under scrutiny. The empirical evidence available is scattered in scope, agronomic and geographical contexts and impacts on ecosystem services may depend on the type of diversification strategy used. To robustly assess the effects of crop diversification in agroecosystems, we compiled the results of 95 meta-analyses integrating 5,156 experiments conducted over 84 experimental years and representing more than 54,500 paired observations on 120 crop species in 85 countries. Overall, our synthesis of experimental data from across the globe shows that crop diversification enhances not only crop production (median effect +14%), but also the associated biodiversity (+24%, i.e. the biodiversity of non-cultivated plants and animals), and several supporting and regulating ecosystem services including water quality (+51%), pest and disease control (+63%) and soil quality (+11%). However, there was substantial variability in the results for each individual ecosystem service between different diversification strategies like agroforestry, intercropping, cover-crops, crop rotation or variety mixtures. Agroforestry is particularly effective in delivering multiple ecosystem services, i.e. water use and quality, pest and diseases regulation, associated biodiversity, long-term soil productivity and quality. Variety mixtures, instead, provide the lowest benefits, while the other strategies show intermediate results. Our results highlight that while increasing the diversity of cultivated crop species or varieties in agroecosystems represents a very promising strategy for more sustainable land management, contributing to enhanced yields, enhanced biodiversity and ecosystem services, some crop diversification strategies are more effective than others in supporting key ecosystem services.
Databáze: OpenAIRE
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