Effects of crop management at the landscape scale on biodiversity : a review and research perspectives - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Conference Papers Year : 2022

Effects of crop management at the landscape scale on biodiversity : a review and research perspectives

Abstract

Agricultural activity, through farming practices and landscape changes, is an important driver of biodiversity and ecosystem service provision. While the relationship between land-use and biodiversity is widely studied, few studies consider the "hidden" heterogeneity of agricultural landscapes represented by crop management. Indeed, most species living in agroecosystems are affected by the intensity and spatial distribution of farming practices, which can be as—or even more—influential as the diversity of crops and non-crop habitats. The objective of our review is to assess 1) how crop management was described at the landscape scale and 2) the estimated effects on biodiversity and potential of ecosystem service provision. According to a Web of Science request, we retrieved 133 original studies dealing with the broad notion of crop management at the landscape scale and rejected studies only considering landcover and land-use metrics. Three components of crop management are studied in analyzed papers: effect of agricultural system (i.e., organic vs. conventional farming), effect of crop rotation, and effect of individual farming practices (e.g., soil tillage, pesticide or nitrogen use). Natural enemies, insect pests, pollinators, birds, and weeds are the primary organisms for which the effect of crop management at the landscape scale has been studied. Overall, preliminary results show that many studies examine the effect of a single component of crop management (in most cases, the effect of organic farming) and do not compare the effects of crop management at the local and landscape scales. Extensiveness of crop management in the landscape seems to benefit biodiversity and the provision of ecosystem services. While expansion of organic farming in the landscape benefits to pollinators and weeds, diversification of rotation has positive effect on bird. Individual farming practices have shown species and practicesdependent effects, suggesting that the direction of effect is not obvious and deserves to be studied. Our findings suggest that the interest for crop management in the landscape needs to be reinforced in ecological studies. A better knowledge of their impact on biodiversity would allow intensifying the joint landscape-scale management of both heterogeneities of land use and crop management.
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Dates and versions

hal-04084855 , version 1 (28-04-2023)

Identifiers

  • HAL Id : hal-04084855 , version 1

Cite

T Brusse, R Marrec, Aude Barbottin, Laura Henckel, Kévin Tougeron, et al.. Effects of crop management at the landscape scale on biodiversity : a review and research perspectives. SFE² GfÖ EEF. Joint meeting, International Conference on Ecological Sciences. Ecology and Evolution: New perspectives and societal challenges, Nov 2022, Metz, France. ⟨hal-04084855⟩
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