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…

The impact of global warming on Ontario’s icewine industry

Ontario’s wine regions lie at the climatic margins of commercial viticulture owing to their cold winters and short cool growing season. The gradual warming of northern latitudes projected under a human-induced climate change scenario could bring mixed benefits to these wine regions.

Different oxygen and sulphur dioxide concentrations in ‘Sauvignon blanc’ must: effect on the composition of the must and wine

The effects of different oxygen and sulphur dioxide additions to South African ‘Sauvignon blanc’ musts were investigated. Oxygen addition without SO2 protection led to lower levels of certain volatile thiols in the wines, with a corresponding decrease in certain phenols and glutathione concentrations.

Zonazione dell’area viticola doc durello

Il lavoro di zonazione riveste un ruolo importante per capire le potenzialità e la vocazionalità di una specifica area viticola. La viticoltura dovrebbe essere vista in funzione dell’obiettivo enologico che si vuole realizzare e quindi particolare importanza riveste il risultato delle vinificazioni delle uve provenienti dai vigneti delle diverse aree della zona di produzione oggetto d’indagine. La zonazione dell’area a DOC Monti Lessini Durello ha preso in esame la varietà “Durella”, vitigno autoctono del territorio, che rappresenta la maggior parte della produzione vitivinicola della zona.

Pedological criteria according to the French hierarchy of vintages, Appellations d’Origine Contrôlée (AOC): study of two toposequences located in the Burgundian “Côte”

The concept of terroir is defined by a set of natural and human factors. On the slopy vineyards of the Burgundian « Côte », the « Appellations d’Origine Contrôlée (AOC) » spread out according to the slope in their order of quality : « AOC Grand Cru » at the top, « AOC Premier Cru » and « AOC Village » and « Bourgogne » on the piemont. In order to correlate the hierarchy of the vintages with the evolution of the topographic and pedological criteria, two toposequences were studied, in Gevrey Chambertin (« Côte de Nuits ») and Aloxe Corton (« Côte de Beaune »).

Relevance of an immunoassay test for rapid detection of Botrytis cinerea in ‘Ugni blanc’ musts and wines

A new immunoassay kit, called Botrytis Lateral Flow Device has been tested to detect Botrytis cinerea on musts and wines. The comparison of the immunoassay result with the quantitative analysis of usual markers (gluconic acid, sugars and polyols) showed the relevance of this innovative tool.