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IVES 9 IVES Conference Series 9 Legacy of land-cover changes on soil erosion and microbiology in Burgundian vineyards

Legacy of land-cover changes on soil erosion and microbiology in Burgundian vineyards

Abstract

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Soils in vineyards are recognized as complex agrosystems whose characteristics reflect complex interactions between natural factors (lithology, climate, slope, biodiversity) and human activities. To date, most of the unknown lies in an incomplete understanding of soil ecosystems, and specifically in the microbial biodiversity even though soil microbiota is involved in many key functions, such as nutrient cycling and carbon sequestration. Soil biological properties are indicative of soil quality. Therefore, understanding how soil communities are related to soil ecosystem functioning is becoming an essential issue for soil strategy conservation. Here, we propose to assess the importance of land-cover history on the present-day microbiological and physico-chemical properties. The studied area was selected in the Burgundian vineyards (Pernand-Vergelesses, Burgundy, France) where land occupation has been reconstructed over the last 40 years. Soil samples were collected in five areas reflecting various land cover history (forest, vineyards, shifting from forest to vineyards). For each area, physico-chemical parameters (pH, C, N, P, grain size) were measured and DNA was extracted to characterize the abundance and diversity of microbial communities. The obtained results show significant differences in the five areas suggesting that present-day microbial molecular biomass and bacterial taxonomic is partly inherited from past land occupation. Over longer period of time, such study of land-uses legacies may help to better assess ecosystem recovery and the impact of management practices for a better soil quality and vineyards sustainability.

DOI:

Publication date: May 4, 2022

Issue: Terclim 2022

Type: Article

Authors

Amélie Quiquerez1, Jean-Pierre Garcia2, Samuel Dequiedt3, Lionel Ranjard4 and Olivier Mathieu5

1,2UMR6298 ARTEHIS uB/CNRS, Université de Bourgogne, Dijon, France
3,4UMR1347 Agroécologie INRAE, Dijon, France
5UMR6282 Biogéosciences uB/CNRS, Université de Bourgogne, Dijon, France

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Keywords

soil microbiology, legacy, land occupation history, vineyards

Tags

IVES Conference Series | Terclim 2022

Citation

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