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IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2006 9 Application of zoning to increase the value of terroirs (Terroir 2006) 9 Agronomical assessment of a vine « terroir » map: first results in the « AOC » Minervois region

Agronomical assessment of a vine « terroir » map: first results in the « AOC » Minervois region

Abstract

Minervois is a vine region where the first detailed soil map was begun 30 years ago. In 2003, a new map was drawn plotting the soil-landscape associations. This map distinguishes 8 large soil units based on geology. The widest (called « marnes ») is the most complex : it is made of 57 sub-units, which leads to a high variability of the vine behaviour on this unit. We proposed a way to simplify that very complex soil information in order to understand the relationship between vines characteristics and the map sub-units of soil. The 57 first sub-units were turned into 5 new ones. Water constraint and agronomical data were examined for 2 vine cultivars on 47 vine plots among the « marnes » unit and compared to 3 of our simplified sub-units (87% of the total area of the « marnes » unit). Shoot elongation and carbon discrimination were used for estimating water regime during summer. The soil-plant water regime is revealed to be the main factor classifying the 3 sub-units : we show good relationship between grapes and vines characteristics and the new sub-units.

DOI:

Publication date: December 22, 2021

Issue: Terroir 2006

Type: Article

Authors

William TRAMBOUZE and Marie VIGNERON

(1) Chambre d’agriculture de l’Hérault, 15 rue Victor Hugo, 34120 Pézenas, France
(2) Syndicat du Cru Minervois

Contact the author

Keywords

vine terroir, soil unit, map, water regime

Tags

IVES Conference Series | Terroir 2006

Citation

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