Terroir 1996 banner
IVES 9 IVES Conference Series 9 Hierarchy of the interactions between physical and biological parameters intervening in the Pyrenean Gascon foothill vineyard

Hierarchy of the interactions between physical and biological parameters intervening in the Pyrenean Gascon foothill vineyard

Abstract

Un travail sur les A.O.C. du piémont pyrénéen occidental permet de construire une hiérarchie de paramètres climatiques, géo-pédologiques, morphologiques, de saisir leurs niveaux d’interaction et d’élaborer une méthodologie pour proposer un zonage. Le départ est l’analyse de formes, fondamentale pour hiérarchiser les unités et définir les expositions. Le paramètre climatique, toujours nnjeur, est analysé, à 3 échelles. Puis les sols sont étudiés dans une logique de toposéquence, leurs aptitudes sont jugées en fonction de l’interaction avec le microclimat de chaque parcelle. Viennent alors des analyses texturales et géochimiques qui ne sont que des supports pour les choix de pratiques viticoles. Dans un piémont, c’est le système des pentes qui guide le zonage, mais ces terroirs portent également l’empreinte d’une forte tradition humaine, qui doit s’ouvrir à la modernité tout en valorisant ses originalités.

A work on the A.O.C. of Pyrenean foothill wakes it possible to build a hierarchy of parameters to seize their levels of interactions and to work out a methodological protocol to propose a zoning. The departure is the forms analysis, fundamental for hierarchizing the units and to define the exposures. The always major climatic parameter, is analysed, on 3 scales (global, regional, local). Then the soils are studied in a logic of toposequence. The aptitudes of the soil are judged according to their interaction with the microclimate of each parcel. Come then from the texture and geochimical analysis, which are only supports for the viticultural practices choices. A cartographic expression is then given. In a foothill, it is the system of the slopes, which guides zoning, but these traditional soils also carry the print of a story human tradition, which must open with modernity while preserving and valorizating its originalities.

 

 

 

DOI:

Publication date: February 15, 2022

Issue: Terroir 2002

Type: Article

Authors

Jean DELFAUD and Roger SABRIER

Géodynamique des Bassins – Université de Pau – CURS-IPRA – BP 1155 – 64013 PAU

Keywords

Piémont gascon, Terroirs, Formes, Climat, Sols, Zonage, Géochimie, Minéraux argileux, Capacité d’échange
Gascon foothill, Vineyard, Morphology, Climate, Soils, Zoning, Geochimistry, Clay minerais, Exchange capacity

Tags

IVES Conference Series | Terroir 2002

Citation

Related articles…

Contribution of grape seeds to evolution of acetaldehyde, pigments and tannins reactive towards salivary proteins of red wine over time

This study investigated the impact of the gsk/gse ratio on the evolution of acetaldehyde and of major phenolic compounds of aglianico wine in wine like solution and real wine. Four model solutions and the correspondant control wines were prepared. The natural weight ratio between grape skins and seeds was determined on the real grapes, and a control wine was obtained from those.

Using a grape compositional model to predict harvest time and influence wine style

Linking wine composition to fruit composition is difficult due to the numerous biochemical pathways and substrate transformations that occur during fermentation

Effect of vine nitrogen status on grape and wine quality: Terroir study in the Vaud vineyard (Switzerland)

This study was conducted on soil-climate-plant relations (terroir) and their impact on grape composition and wine quality in the canton of Vaud by Agroscope Changins-Wädenswil ACW

Characterization of free and glycosidically bound simple phenols in hybrid grape varieties using liquid chromatography coupled to high resolution mass (q-orbitrap)

Vitis vinifera is one of the most diffused grapevines over the word and it is the raw material for high quality wines production. The availability of more resistant interspecific hybrid vine varieties, developed from crosses between Vitis vinifera and other Vitis species, has generating much interest, also due to the low environmental effect of production. However, hybrid grape wine composition and varietal differences between interspecific hybrids are not well defined. Different studies revealed that wine consumption has health effects due to its high content of antioxidants, as phenolic compounds. In particular, simple phenols are appreciated not only for their physiological health benefits, including antioxidant, anti-inflammatory and cardioprotective effects, but also because they affect wines organoleptic profile and have a significant role in defining their nutritional characteristics.

Effect of Saccharomyces species interaction on alcoholic fermentation behaviour and aromatic profile of Sauvignon blanc wine

Enhancing the sensory profile of wine by the use of different microorganism has been always a challenge in winemaking. The aim of our work was to evaluate the impact of different fermentation schemes by using mixed and pure cultures of different Saccharomyces species to Sauvignon blanc wine chemical composition and sensory profile.