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Analyse climatique à l’échelle des Coteaux du Layon

Abstract

[English version below]

Les études d’impact du climat sur la vigne nécessite de descendre à des échelles très fines car les facteurs climatiques sont tributaires de la topographie, la végétation, les expositions … Dans le cadre du programme ANR-JC Terviclim, 22 capteurs ont été installés dans les vignobles des Coteaux du Layon afin de caractériser le climat particulier de ces terroirs. L’analyse des températures montre de fortes disparités entre les data loggers et pourtant situés parfois sur les mêmes parcelles ou sur des parcelles voisines. Les indices bioclimatiques tels les degrés jours sont également contrastés suivant la situation des capteurs sur les coteaux.

Climate impact studies on vine require downscaling because climatic factors depend on topography, vegetation, orientation …In the framework of the ANR-JC Terviclim, 22 data loggers were settled in the “Coteaux du Layon” vineyards to characterize the particular climate of these terroirs. Temperatures analysis shows strong disparities between data loggers locate on the same plots or on nearby plots. Bioclimatic index as growing degree days are also contrasting depending on the data loggers situation in the vineyard.

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Publication date: December 3, 2021

Issue: Terroir 2010

Type: Article

Authors

C. Bonnefoy (1), H. Quénol (1), G. Barbeau (2), M. Madelin (3)

(1) Laboratoire COSTEL, UMR6554 LETG du CNRS, Université Rennes 2 – Haute Bretagne, Rennes
(2) INRA UE1117, UMT Vinitera, Beaucouzé
(3) PRODIG, UMR CNRS 8586, université Paris Diderot

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Keywords

Impact studies, vine, downscaling, Coteaux du Layon, terroirs, bioclimatic index

Tags

IVES Conference Series | Terroir 2010

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