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…

Does bioprotection by adding yeasts present antioxydant properties?

AIM: The bioprotection by adding yeasts is an emerging sulfur dioxide alternative. Sulfur dioxide is a chemical adjuvant used for its antiseptic, antioxidasic and antioxidant properties. Faced with the societal demand (Pérès et al., 2018) and considering the proven human risks associated with the total doses of sulfur dioxide (SO2) present in food requirements (García‐Gavín et al., 2012), the reduction of this chemical input is undeniable.

Combined use of Lachancea thermotolerans and Schizosaccharomyces pombe in winemaking

Commercial red wines use the malolactic fermentation process to ensure stability from a microbiological point of view. In this second fermentation, malic acid is converted into L-lactic acid under controlled steps.

Multispectral data from Sentinel-2 as a tool for monitoring late frost events on vineyards

Aim: Climate change is altering some aspects of winegrape production with an advancement of phenological stages which may endanger viticultural areas in the event of a late frost. This study aims to evaluate the potential of satellite-based remote sensing to assess the damage and the recovery time after late frost events.

Lactiplantibacillus plantarum – A versatile tool for biological deacidification

Malolactic fermentation (MLF) is a secondary wine fermentation conducted by lactic acid bacteria (LAB). This fermentation is important in winemaking as it deacidifies the wine, converting L-malic acid into L-lactic acid and carbon dioxide, and it contributes to microbial stability. Wine pH is highly selective, and at pH below 3.5 generally only strains of O. oeni can survive and express malolactic activity, while under more favorable growth conditions above pH 3.5, species of Lactobacillus and Pediococcus may conduct the MLF. Among the LAB species Lactiplantibacillus plantarum strains have shown most interesting results under hot climate conditions, not only for their capacity to induce MLF, but also for their homo-fermentative properties towards hexose sugars, which makes them suitable for induction of MLF in high pH and high alcohol wines, when inoculated at the beginning of alcoholic fermentation.

Protein extracts of the Andean pseudocereals quinoa and kiwicha as alternatives for the fining of wine phenolics.

INTRODUCTION: Lately, there has been an increasing interest in using plant-derived proteins for wine phenolic fining.