U2P34WVT

2780

11 janvier 2021 14:18

11 janvier 2021 14:18

Although there are several alternative approaches to conventional farming for the nexus of food and biodiversity, the effects of different land management regimes on biodiversity conservation and agricultural production have not been fully evaluated. Focusing on orchard and vineyard landscapes, which host many conservation-priority species, we conducted a series of meta-analyses to compare (1) three measures of biodiversity (taxon richness, abundance, and community similarity) among five management regimes (conventional, integrated, organic, and abandoned orchards/vineyards and (semi-)natural habitats) and (2) fruit/nut yield among the three farming systems. Compared to conventional farming, integrated farming supported higher richness (on average +11%) and a slightly lower yield (−1%). The lack of positive effect on overall abundance was due to the increase in natural enemies and the decrease in pests. Organic farming showed greater richness and abundance (+16% and +51%, respectively) and a significantly lower yield (−18%). (Semi-)natural habitats and abandoned orchards/vineyards showed less similar community compositions to conventional orchards/vineyards than to integrated ones. Our study provides the differential effects of management regimes as alternatives to conventional farming on biodiversity conservation and fruit/nut production. Future studies should explore whether a combined use of land sharing (integrated and organic farming) and land sparing, including the preservation of old orchards, is a better strategy than either land sharing or sparing for conserving biodiversity on multiple spatial scales with a minimal loss in food production. This is particularly true for Asia, where large areas of orchards remain poorly investigated.

None

• AB - Modalité bio
• FREDO environnement
• FREDO lutte
• agricultural intensification
• biodiversité
• comparaison
• land use
• landscape
• rendement
• verger
• vignoble

• biodiversity conservation
• fruit/nut yield
• integrated pest management
• orchards and vineyards
• perennial crops

Biological Conservation

229

125-133

January 1, 2019

1 janvier 2019

10.1016/j.biocon.2018.11.020 Le DOI est une URL unique de référencement d'une publication. Il est donc plus fiable et permanent qu'une URL classique

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