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IVES 9 IVES Conference Series 9 Viticultural zoning in the province of San Juan, Argentina. Preliminary results, year 2000

Viticultural zoning in the province of San Juan, Argentina. Preliminary results, year 2000

Abstract

[English version below]

La région viticole de San Juan (Argentine) est marquée par des températures très élevées et des variations diurnes faibles. La valorisation de la connaissance de cet environnement et de ses interactions avec le fonctionnement de la vigne et le lien au vin passent par l’étude de ses terroirs et de leur caractérisation. Le point de départ de ce travail est l’étude des zones mésoclimatiques aptes à la culture de la vigne de la Province de San Juan et à la caractérisation des sols de cette même région. L’objectif est de définir le potentiel vitivinicole des zones considérées. Le croisement d’un type de climat et d’une série de sols est à l’origine de l’identification des Unités de Zonage. Le travail est réalisé à l’échelle d’une oasis sur un ensemble de 31 parcelles viticoles de cépages Syrah qui constitue un réseau de parcelles d’observation, situées dans les différentes vallées de Tulum, Ullum, Zonda et Pedernal. Des aspects concernant les relations entre les indices climatiques, le sol, les variables agronomiques de comportement de la plante et la qualité du raisin et des vins, sont étudiés pour la définition des zones et de leur typicité. A la suite d’une première année d’étude, 16 Unités de Zonages regroupées en 5 grandes zones homogènes ont pu être identifiées dans cette région viticole. Ce travail sera poursuivi pour préciser les résultats et caractériser ces zones.

The viticultural region of San Juan province (Argentina) is characterized by high temperatures during summer with small variations along the day. The knowledge about this environment and its interaction with vineyards and wine can be valorized by the study of its “terroirs” and their characteristics. This study is based on the study of soils and those mesoclimatic zones that are competent for vineyards. The aim is to define agricultural and enological potential of zones. The comparison among different climate and soil data bases leads to the identification of Zoning Units. These units have been elected within the region based on an observatory net of 31 Syrah vineyards. They were located in the valleys of Tulum, Zonda Ullum and Pedemal.
In order to define different Zoning Units and their typicity, relations between climatic indixes, soil characteristics, agronomic variables of the plant behaviours, and the quality of grapes and wines have been studied. Sixteen Zoning Units have yet been identified and gathered in five big homogeneous zores. Further studies are foreseen to precise the results and better characterize these zones.

DOI:

Publication date: February 15, 2022

Issue: Terroir 2002

Type: Article

Authors

M. GRASSIN, J. NAZRALA, H. VILA, C. TROILO

Station Expérimentale Agronomique (EEA) INTA Mendoza – Av. San Martin 3853 – 5507 Chacras de Coria

Keywords

zonage, vigne, terroir, climat, sol, typicité
zone, grapevine, Terroir, climate, soil, typicity

Tags

IVES Conference Series | Terroir 2002

Citation

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