Terroir 1996 banner
IVES 9 IVES Conference Series 9 Un Système d’Informations à Références Spatiales sur le Vignoble. Un outil performant d’aide aux recherches sur la caractérisation des terroirs viticoles

Un Système d’Informations à Références Spatiales sur le Vignoble. Un outil performant d’aide aux recherches sur la caractérisation des terroirs viticoles

Abstract

The “Terroirs d’Anjou” project led by the Agronomy sector of the Vine and Wine Research Unit of the INRA center in Angers aims to characterize the viticultural terroirs in a study area which includes 29 municipalities in the Maine et Loire and cuts across the Anjou, Coteaux du layon and Coteaux de l’Aubance appellation areas.

The research methodology on viticultural terroirs developed by UVV revolves around two main themes:
– A characterization of terroirs in the field which consists of collecting information relating to the physical components of the environment. Observations on geology, soils and landscapes thus form the basis of the study. This step is similar to a cartographic survey
– A survey conducted among winegrowers in each of the 29 municipalities. This survey is intended to integrate human factors within the study, and to study the possibilities of use as an experimental tool for highlighting the terroir effect. The questionnaire focuses on the behavior of the vine, winemaking, knowledge and empirical management of the terroirs by the winegrower.

This study therefore entails a large volume of information which must be managed in an optimal way to facilitate their processing, while preserving their particular character of localized data. Indeed, there is no direct relationship allowing to associate the data of the investigation on the one hand with those of the characterization on the other hand. The only relationship existing between these two levels of information is of the spatial superposition type. To use it and thus cross the two types of information, it is necessary to manage the associated geographical objects.

DOI:

Publication date: March 25, 2022

Type: Poster

Issue: Terroir 1996

Authors

P. BOLO, R. MORLAT, D. RIOUX

INRA.URVV.
42, rue Georges Morel, 49071 Beaucouzé

Tags

IVES Conference Series | Terroir 1996

Citation

Related articles…

Tools for assessing vine nitrogen status; role of nitrogen uptake in the “terroir” effect

Among the numerous nutrients vines extract from the soil, nitrogen is the one that interferes most with vine vigor, yield, berry constitution and wine quality. Many studies relate on the influence of various levels of nitrogen

Breeding grapevines for disease and low temperature tolerance: the U.S. perspective

Most grape scion cultivars grown around the world are derived from a single species, Vitis vinifera. Yet, the proportion of interspecific hybrids is increasing for a variety of reasons, including resistance to abiotic stresses such as low temperatures; societal, economic and environmental pressures to reduce pesticide usage; and to add a greater range of flavors to new table grape cultivars.

Extracellular substances of lactic acid bacteria interests in biotechnological practices applied to enology

Extracellular substances (ECS) represent all molecules outside the cytoplasmic membrane, which are not directly anchored to the cell wall of microorganisms living through a planktonic or biofilm phenotype. They are the high-biomolecular-weight secretions from microorganisms (i.e. extracellular polymeric substances – EPS – proteins, polysaccharides, humic acid, nucleic acid), and the products of cellular lysis and hydrolysis of macromolecules. In addition, some high- and low-molecular-weight organic and inorganic matters from environment can also be adsorbed to the EPS. All can be firmly bound to the cell surface, associated with the EPS matrix of biofilm, or released as being freely diffusing throughout the medium.

Determining sub-appellations in Ontario’s wine regions

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

Polysaccharide families of lyophilized extracts obtained from unfermented varietal grape pomaces

The recovery of bioactive compounds from grape and wine by-products is currently an important objective for revaluation and sustainability. Grape pomace is one of the main by-products and is a rich source of some bioactive compounds. The aim of this study was to evaluate the polysaccharide (PS) composition of extracts obtained from pomaces of different white and red grape varieties of Castilla y León. Grape pomaces were obtained after the pressing in the winemaking process.