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IVES 9 IVES Conference Series 9 Terroir, sol et sous-sol : principes de modélisation spatiale de quelques paramètres physiques caractérisant le substrat altéré dans les régions viticoles établies sur socle ancien

Terroir, sol et sous-sol : principes de modélisation spatiale de quelques paramètres physiques caractérisant le substrat altéré dans les régions viticoles établies sur socle ancien

Abstract

Depuis plusieurs années, le développement des moyens informatiques, et notamment des Systèmes d’Information Géographique, ont permis l’émergence d’une approche nouvelle d’analyse et de caractérisation des terroirs viticoles (Morlat, 1989 ; Laville, 1990). Ces méthodes, qui permettent d’identifier des zones ou unités de terroir homogènes, sont basées sur le croisement, l’analyse statistique (notamment l’Analyse en Composantes Principales : A.C.P.) et l’intégration de paramètres décrivant le milieu naturel dans lequel se développe la vigne.

Ces paramètres se rattachent à un nombre restreint de critères élémentaires que l’on peut regrouper en trois grandes catégories :
critères liés à la géomorphologie :
– altitude (en m)
– pente (en %)
– courbure verticale (concavité/convexité, en degrés)
critères liés au climat :
– pluviométrie (en mm par unité de temps)
– température moyenne (en degrés)
– insolation théorique (en W/h/m2)
critères liés au sous-sol : 
– nature du sol
– nature du sous-sol.

DOI:

Publication date: March 25, 2022

Type: Poster

Issue: Terroir 1996

Authors

R. WYNS

Bureau de Recherches Géologiques et Minières, Service Géologique National, Département Utilisation Protection de l’Espace géologique, B.P. 6009, 45060 Orléans Cedex 02, France

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Tags

IVES Conference Series | Terroir 1996

Citation

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