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Pré-Publication, Document De Travail Année : 2023

Effects of agricultural practices on biodiversity. A review

Corentin Babin
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Sandrine Espagnol
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Joël Aubin

Résumé

The loss of biodiversity has become a major concern in the 21 st century. The current agricultural model is one of the main drivers of biodiversity loss; however, agriculture can also help maintain and even promote biodiversity. Therefore, understanding of the positive and negative effects of agricultural practices on biodiversity needs to be increased. We developed a method to summarize the results of meta-analyses on this subject. We reviewed 27 meta-analyses from the literature to provide a detailed overview of their results and quality. These meta-analyses examined effects of several agricultural practices on terrestrial biodiversity at the local scale: inorganic or organic fertilization, crop rotation, intercropping, use of cover crops, use of plant-protection products, tillage, landscape management and grazing. We found that (i) the meta-analyses considered certain taxonomic or functional groups much more than others, depending on the agricultural practices considered and feasibility criteria; (ii) compositional biodiversity, especially at the species level, was usually considered through changes in abundance, richness or diversity; (iii) the taxonomic/functional groups and metrics chosen determined the biodiversity observed and (iv) all of the agricultural practices studied influence biodiversity dynamics, and some have a dominant influence, such as the use of plant-protection products and landscape management. However, the intensity of practices, interactions between practices and the sensitivity of environments influenced the effects observed and must be better understood to classify practices objectively according to their effects on biodiversity. Further research and data are required to qualify in more detail the relations between agricultural practices and biodiversity, as well as to increase understanding of the relations between ecosystem functioning and the compositional and structural components of biodiversity.
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Licence : ETALAB - Licence Ouverte

Dates et versions

hal-04465927 , version 1 (19-02-2024)

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  • HAL Id : hal-04465927 , version 1

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Corentin Babin, Sandrine Espagnol, Joël Aubin. Effects of agricultural practices on biodiversity. A review. 2023. ⟨hal-04465927⟩
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