Terroir 2004 banner
IVES 9 IVES Conference Series 9 Cartographie des terroirs viticoles: valorisation des résultats par un logiciel de consultation dynamique de cartes

Cartographie des terroirs viticoles: valorisation des résultats par un logiciel de consultation dynamique de cartes

Abstract

[English version below]

Pour son travail de cartographie et de caractérisation des terroirs, la Cellule Terroirs Viticoles utilise la méthode développée par l’Unité Vigne et Vin du Centre INRA d’Angers. Cette méthode reconnue au niveau international est appliquée dans les vignobles du Val de Loire à l’échelle du 1/10 000e et est valorisée par des éditions d’Atlas Viticoles à destination des viticulteurs et des organismes techniques. Ces atlas comportent une cartographie précise des terroirs (Unités Terroir de Base, caractéristiques des sols…) ainsi que des cartes conseils afin que le viticulteur puisse adapter ses méthodes de culture de la vigne (choix du cépage et du porte-greffe, choix des pratiques agro-viticoles : taille, enherbement…) et ses pratiques oenologiques au terroir de chaque parcelle. A terme, l’utilisation de ces atlas doit permettre l’adéquation du matériel végétal et des pratiques culturales au terroir, et donc de contribuer à une amélioration de la qualité et de la typicité des vins.
Dans le but de rendre plus aisée et plus attractive cette utilisation, la Cellule Terroirs Viticoles propose désormais la consultation des bases cartographiques en version informatisée. Ces dernières sont accessibles grâce à un logiciel permettant une consultation dynamique des différentes cartes à thèmes proposées dans les Atlas Viticoles. Concrètement, le viticulteur peut sur son poste informatique déplacer la carte affichée à l’écran, changer le thème représenté (Unité de Terroir de Base, profondeur de sol…), zoomer sur une zone précise… En se plaçant à l’endroit souhaité sur la carte par l’intermédiaire de la souris, le viticulteur peut d’un seul clic accéder à une multitude d’informations concernant la zone ou la parcelle sélectionnée. Le parcellaire du viticulteur peut également être numérisé et superposé sur les différentes cartes ce qui permet une localisation plus fine et plus rapide pour l’utilisateur.
Cet outil informatique est donc une réelle évolution pour le viticulteur et dans le cas de caves coopératives, il se révèle être un véritable atout technique notamment dans l’élaboration de cuvées terroirs spécifiques. Dans la gamme des produits informatiques proposés aux viticulteurs, l’Atlas Viticole Informatisé vient compléter les différents logiciels de suivis parcellaire et de gestion de cave pour une meilleure garantie de l’authenticité et de la traçabilité du vin.

For its routine work of characterisation and cartography of viticultural terroirs, the CVVL Terroir Cartography Unit uses the method developed by the INRA-Angers Research Unit on Grapevine and Wine. This method, of international recognition, is presently applied to the cartography of the Val de Loire vineyards (scale : 1/10 000) and valorised through the edition of viticultural atlases for the use of the vine-growers and technical institutes. These atlases propose precise maps of the Basic Terroir Units and soil characteristics as well as maps to assist in the choice of the planting material (variety, rootstock) and cultural practices (inter-row grassing). The objective is to optimise the adaptation of the planting material and the cultural practices to the terroir conditions and, therefore, to improve the quality and the typicalness of the resulting wines. 
In order to facilitate this tool and make it more attractive, the Terroir Cartography Unit is now able to propose a computerised version of the cartographic bases. These are accessible through a software that allows for a dynamic consultation of all the thematic maps proposed in the atlases. In a concrete way, the vine-grower can, on his computer, surf and zoom on the maps or change the topic (Basic Terroir Unit, soil depth, soil water reserve, percentage of gravels, etc…). A simple click on a precise location of the pointer gives access to all the information relative to the site. All the plots of a given vine-grower can be digitalised, and superimposed to the different maps, which allows the user for a quicker and more precise localisation of his sites of interest. 
This computerised tool constitutes a real evolution both for the single vine-growers and the co-operatives, as a new and very technical card to elaborate specific terroir wines. It completes the viticultural and enological software proposed to the growers to improve the monitoring of the vine and elaboration of the wine, to better guarantee the authenticity and the traceability of the product. 

DOI:

Publication date: January 12, 2022

Issue: Terroir 2004

Type: Article

Authors

E. Goulet (1), D. Rioux (1) and G. Barbeau (2)

(1) Cellule « Terroirs Viticoles », Confédération des Vignerons du Val de Loire, 42 rue Georges Morel, 49071 Beaucouzé Cedex
(2) Unité Vigne et Vin, INRA, 42 rue Georges Morel, 49071 Beaucouzé Cedex

Contact the author

Keywords

Cartographie, terroirs, consultation dynamique de cartes
cartography, terroirs, dynamic map consultation

Tags

IVES Conference Series | Terroir 2004

Citation

Related articles…

Antimicrobial activity of oenological polyphenols against Gram positive and Gram negative intestinal multidrug-resistant bacteria

Bacterial antibiotic resistance is a major current health problem. Polyphenols have demonstrated antibacterial activity, and in this work we studied the effect of oenological polyphenols on the growth of intestinal multidrug-resistant strains of human and animal origin. Two Enterococcus faecium strains, resistant to vancomycin and other antibiotics, and four Escherichia coli strains, resistant to ampicillin and other antibiotics, were included in this study. All strains showed multidrug resistant phenotypes and genotypes to at least two antibiotic families.

Ripening of cv. Cabernet Sauvignon grapes: polysaccharides fractions evolution and phenolic extractability

Polysaccharides and more specifically pectins, make up a significant portion of the cell wall material of the plant cells including the grapes. During the fruit ripening the associated softening is related to the breakdown of the cell wall polysaccharides. During this process, it is expected that polysaccharides that are soluble in red wine will be formed influencing its texture. Anthocyanins are responsible for the wine color and tannins for the astringency, body and bitterness of the wine. In the skins, these compounds are located in the cell vacuoles and the barrier that conditions their extractability is the skin cell wall that may determine the mechanical resistance, the texture and the ease of processing berries. The aim of this work was study the evolution of the polysaccharides and the anthocyanin and tannin extractability during the ripening period in Cabernet Sauvignon grapes, trying to correlate these variables.

Terroir valorization strategies in a reformed denomination area: the Prosecco case study

Aims: This work summarizes some of the upmost recent studies and valorization strategies concerning the Prosecco wine production area. After the geographical denomination Prosecco (DO) was strongly reformed in 2009, the newborn DOCG (controlled and guaranteed DO) and DOC (controlled DO) areas have required different and specific strategies to promote and protect the value of their production.

Characterization of the adaptive mechanisms of grapevine rootstocks to iron deficiency induced by lime stress

Iron (Fe) deficiency is one of the important nutritional disorders for grapevine growing in alkaline and calcareous soils. Although Fe is an abundant element in soil, several factors limiting its availability, particularly the high levels of calcium carbonate or bicarbonate in soil, leading to a remarkable reduction in grapevine growth and productivity. The use of Fe chlorosis-tolerant rootstocks seems to be a cost-effective and efficient way to maintain Fe balance. Morphological and physiological changes occur in plants to cope with low Fe availability, including enhancement of ferric chelate reductase activity and altering root system by increasing lateral roots and root hairs.

Development of a new sustainable filtering media for wine and beer clarification and sterilisation

Different separation techniques are frequently used during vinification process. Nowadays, clarification and microbiological stabilization of wine or beer can be done using precoat filters or crossflow filters to remove yeast and bacteria. Kieselguhr powders are the most used filter aids for precoat filtration. Their crystalline structure and their pulverulent nature induce ecotoxicological risks when used. Moreover, regeneration and reuse of these filter aids is not efficient and the filtration waste requires cost effective retreatment.