Terroir 2004 banner
IVES 9 IVES Conference Series 9 Determining sub-appellations in Ontario’s wine regions

Determining sub-appellations in Ontario’s wine regions

Abstract

[English version below]

Vintners Quality Alliance (VQA) Ontario, (Alliance de qualité Vintners) est responsable de l’administration et de l’imposition des normes en liaison avec la qualité du vin, l’appellation d’origine, les variétés de raisin et les méthodes de production. Des vins produits selon les règlements de VQA sont actuellement étiquetés de trois distinctes mais larges régions d’appellation : Niagara Peninsula (péninsule de Niagara), Lake Erie North Shore (Rivage nord du lac Érié) et Pelee Island (Ïle Pelée). Le système actuel de production permet à une seule variété de raisin d’être développée dans plusieurs hautement différents sols, topographies et mésoclimats, avec pour résultat des vins de qualité très variée.
L’objectif du présent projet est d’évaluer les propriétés spécifiques du sol, de la géologie et du climat qui conviennent à certaines variétés, styles et préférences des consommateurs de vin. En outre, le projet vise à identifier les grandes zones ou les sub-appellations qui recèlent une combinaison d’éléments climatiques, du terroir, géologiques et topographiques qui permettraient aux variétés de vignes indiquées d’atteindre un potentiel de maturation optimum, de produire un vin de qualité consistante et d’éviter des dommages excessifs causés par le gel. Dans la conduite de cette recherche, le projet a exploité plusieurs bases de données relatives au sol, à la topographie, au lieu, à la géologie et au climat des régions viticoles de l’Ontario et a utilisé des outils du GIS (système d’information géographique) afin de déterminer la distribution spatiale et l’homogénéité de plusieurs sub-appellations proposées. Un indice composé basé sur plusieurs variables environnementales clés a, donc, été élaboré; les résultats ont été arrêtés pour la région et la frontière de chaque sub-appellation soigneusement définie.

Vintners Quality Alliance (VQA) Ontario is responsible for administering and enforcing standards in connection with wine quality, Appellation of Origin, grape varieties and production methods. Wines produced in accordance with VQA regulations are currently labelled under three distinct but broad viticultural areas (Niagara Peninsula, Lake Erie North Shore and Pelee Island. The present system of production permits a single grape variety to be grown in several highly dissimilar soils, topographies and mesoclimates, resulting in wines that are highly variable in their character.
The objective of this project is to evaluate specific properties of the soil, geology and climate that are suitable for certain varieties, wine styles and consumer preferences. Furthermore, it aims to identify broad zones or sub-appellations that possess a combination of climatic, soil, geological and topographic elements that would enable the designated grape varieties to achieve optimum ripening potential, produce wine of consistent quality and avoid excessive freeze injury. Accordingly, this project uses several databases relating to the soil, topography, location, geology and climate of Ontario’s wine regions along with GIS (Geographic Information System) tools to determine the spatial distribution and homogeneity related to several proposed sub-appellations. A composite index based on several key environmental variables was then constructed; the results were mapped for the region and the boundary of each sub-appellation was carefully defined.

DOI:

Publication date: January 12, 2022

Issue: Terroir 2004

Type: Article

Authors

Anthony. B. Shaw

Department of Geography, Brock University, St. Catharines, Ontario, L2S 3A1, Canada

Contact the author

Keywords

Ontario, sub-appellations, wine regions
Ontario, sub-appellations, Alliance de qualité Vintners

Tags

IVES Conference Series | Terroir 2004

Citation

Related articles…

Physico-chemical parameters as possible markers of sensory quality for ‘Barbera’ commercial red wines

Wine quality is defined by sensory and physico-chemical characteristics. In particular, sensory features are very important since they strongly condition wine acceptability by consumers. However, the evaluation of sensory quality can be subjective, unless performed by a tasting panel of experienced tasters. Therefore, it is of great relevance to establish relationships between objective chemical parameters and sensory perceptions, even though the complexity of wine composition makes it difficult. In this sense, more reliable relationships can be found for a particular wine typology or variety. The present study aimed to predict the perceived sensory quality from the physico-chemical parameters of ‘Barbera d’Asti’ DOCG red wines (Italy).

Evaluating analytical methods for quantification of glutathione in grape juice and wine

AIM: Glutathione (GSH) is a powerful natural antioxidant, considered as a promising molecule against oxidative damage of aroma during winemaking and storage.

An innovative 21st century frost alert system for an age-old viticulture challenge

Damage during the budbreak period due to spring season frosts remains one of the most significant weather-related challenges to viticulture around the world. For example, in 2021, €2bn of estimated damage was reported in france while >50% of vineyards were badly affected in the UK in 2017.

Copper, iron and zinc in surface layer of Primošten vineyard soils

Long-term use of copper fungicides causes increased accumulation of total copper in the surface layer of vineyard soils. Many of authors has researched the anthropogenic influx of copper in such soils, which can result in environmental risks.

Spatial Analysis of Climate in Winegrape Growing Regions in Portugal

Spatial climate data at a 1 km resolution has allowed for a comprehensive mapping and assessment of viticulture DOs regions in Portugal. Overall the 50 regions and sub-regions in Portugal range