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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.

 

 

 

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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

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