Terroir 2010 banner

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.

Download the PDF

DOI:

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

Contact the author

; ; ;

Keywords

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

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

Can fungoid chitosan help to produce sulfite-free wines? Ten years of investigation on its antioxidant properties

Chitosan is a natural polymeric saccharide admitted by EU since 2011 for must and wine clarification, the reduction of some contaminants (e.g. ochratoxin A) and to prevent the development of wine microbialspoilage due to lactic acid bacteria or Dekkera/Brettanomyces yeasts.
Read More

Sustainable viticulture’ the “semi‐minimal” pruned “hedge” system for grape vines long term experience on cv. Sangiovese (Vitis vinifera L.)

In previous experiments carried out in Bologna on Sangiovese grapevines raised with the Australian “Minimal Pruning” system, it has been shown that this system left an excessive burden of buds on the vine.

Read More

Effect of spray with autochthonous Trichoderma strains and its secondary metabolites on the quality of Tempranillo grape

Trichoderma is one of the most widely used fungal biocontrol agents on vineyards due to its multiple benefits on this crop, such as its fungicidal and growth promoting capacity. In this work, we have analyzed the effect on the concentration of nutrients in grapevine leaves and on the quality of the grape must after spraying an autochthonous strain of Trichoderma harzianum and one of the main secondary metabolites produced by this genus, 6-pentyl-α-pyrone (6PP).

Read More

Paysages viticoles et terroir dans l’OAC Ribeira Sacra (Galice, NO de l’Espagne)

The concept of Appellation d’Origine Contrôlée (AOC) is based on the existence of a link between the characteristics of the terroir and the quality and typicality of the production (DELAS, 2000). If for a long time, this link only appeared as the fruit of empiricism, the research undertaken recently has made it possible to scientifically establish the complex relationships between the functioning of natural environments and the ability to produce quality.

Read More

The impact of vine pruning methods on physiological development and health condition of Vitis vinifera

This project aims on monitoring the plant development and comparison of the effects of various training systems on vine fertility and physiological processes.

Read More