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.

 

 

 

Download the PDF

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…

A NEW TOOL TO QUANTIFY COMPOUNDS POTENTIALLY INVOLVED IN THE FRUITY AROMA OF RED WINES. DEVELOPMENT AND APPLICATION TO THE STU-DY OF THE FRUITY CHARACTER OF RED WINES MADE FROM VARIOUS GRAPE VARIETIES

A wide range of olfactory descriptors ranging from fresh and jammy fruit notes to cooked and oxidized fruit notes could describe the fruity aroma of red wines [1]. The fruity character of a wine is mainly related to the grape variety selected, to the terroir and the vinification process applied for its conception. In white wines, some volatile compounds confer directly their aroma to the wine while the question of “key” compound is more complex in red wines. According to many studies performed over the past decades, some fruity ethyl esters are directly involved in the fruity perception of red wines while others, present at subthreshold concentrations, participate indirectly to the fruity expression via perceptive interactions [2].

Read More

From vineyard to a glass of wine: the effect of abscisic acid application on mouhtaro, a rare autochthonous variety of greece

In a context of a sustainable viticulture, a new uprising strategy to improve grape and wine composition (or quality) is the exogenous application of plant activators(Gil-Muñoz et al., 2017)

Read More

Contaminations croisées avec les produits phytosanitaires dans les vins bio. Sources potentielles et mesures de prévention.

Organic wines, although resulting from a production method based on the non-use of synthetic phytosanitary products, are not always free of residues. These residues can result from cross-contamination during production in the field or in the cellar, during the production or aging of the wine. In recent years, with the improvement of analysis techniques, a molecule, phosphonic acid, the main metabolite of fosetyl-al (banned in organic farming) is regularly quantified in organic wines and its origin is not clearly identified.

Read More

Investigating three proximal remote sensing techniques for vineyard yield monitoring

Yield monitoring can provide the winegrowers with information for precise production inputs during the season, thereby, ensuring the best possible harvest. Yield estimation is currently achieved through an intensive process that is destructive and time-consuming. However, remote sensing provides a group of proximal technologies and techniques for a non-destructive and less time-consuming method for yield monitoring.The objective of this study was to analyse three different approaches, for measuring grapevine yield close to harvest.

Read More

Vertical temperature gradient in the canopy provides opportunities to adapt training system in a climate change context

Aims: The aims of this study were (1) to measure the vertical temperature gradient in the vine canopy in parcels with different vineyard floor management practices and (2) to analyze the factors influencing this gradient. The objective was to investigate whether the increase of trunk height could be an adaptation strategy to reduce air temperature in the bunch zone in a context of climate change. 

Read More