Terroir 2006 banner
IVES 9 IVES Conference Series 9 A geologic numeric mapping, with geophysic transects, of Marsannay’s vineyard (Burgundy, France)

A geologic numeric mapping, with geophysic transects, of Marsannay’s vineyard (Burgundy, France)

Abstract

Marsannay est l’appellation la plus septentrionale de la Côte de Nuits, à la limite Sud de Dijon. Elle regroupe trois villages, Chenôve, Marsannay-la-Côte et Couchey, et constitue l’appellation la plus vaste de la Côte de Nuits avec 315 hectares en A.O.C. Elle possède uniquement des niveaux d’appellations régionales et communales depuis 1987. En vue d’une demande de regroupements et de changements de niveau d’appellation de lieux-dits auprès de l’INAO, le Syndicat viticole a travaillé conjointement avec le groupe de recherche « terroir » des UMR CNRS 5561 et 5594. La méthodologie de cette étude a donc été orientée sur deux thématiques : une caractérisation physique des terroirs viticoles de l’appellation Marsannay et une étude géologique précise de l’appellation afin de comparer la répartition des facteurs naturels aux limites actuelles des lieux-dits. La caractérisation physique des terroirs viticoles a été réalisée à l’échelle des lieux-dits. La topographie est extraite des cartes I.G.N. au 1/25 000. Le vignoble de Marsannay est planté sur un relief de faille, entraînant une forte variabilité spatiale des substrats géologiques. Ainsi, une campagne de terrain a été menée afin de réaliser une carte géologique au 1/10 000. Les observations des affleurements sont complétées par plusieurs profils géophysiques et des fosses pédologiques. Les sub-affleurements ainsi que les variations du type de roche utilisée dans les constructions historiques de limite de parcelles sont intégrées afin d’affiner l’étude. Cette carte à grande échelle permet de comparer la spatialisation des substrats avec la délimitation des lieux-dits actuels. Il s’avère que les lieux-dits peuvent être géologiquement homogènes ou hétérogènes. Ainsi, faire des unités viticoles systématiquement homogènes d’un point de vue de la géologie amène à délimiter des lieux-dits de taille non adaptée à la culture de la vigne, et en inadéquation avec les délimitations existantes. Il est alors intéressant d’étudier si l’hétérogénéité du substrat d’un lieu-dit viticole influe sur la qualité du vin. Une corrélation a été réalisée pour des lieux-dits à niveau d’appellation et réputation différents.

DOI:

Publication date: January 12, 2022

Issue: Terroir 2006

Type: Article

Authors

Anne COMBAUD (1), Jean-Pierre GARCIA (1), Christophe PETIT (2), Amélie QUIQUEREZ (1), Franck REMOND (1) and Françoise VANNIER-PETIT

(1) UMR CNRS 5561 Biogéosciences
(2) UMR CNRS 5594 Archéologie, cultures et sociétés

Contact the author

Tags

IVES Conference Series | Terroir 2006

Citation

Related articles…

Evaluation of phenology, agronomic and oenological quality in minority wine varieties in Madrid as a strategy for adaptation to climate change

The main phenological stages (budburst, flowering, veraison, and ripeness) and the fruit composition of 34 Spanish minority varieties were studied to determine their cultivation potential and help winegrowers adapt their production systems to climate change conditions. In total, 4 control cultivars, and 30 minority varieties from central Spain were studied during a period of 3 campaigns, in the ampelographic collection “El Encín”, in Alcalá de Henares, Madrid. Agronomic and oenological characteristics such as yield, and total soluble solids concentration have been monitored.

Zoning mountain landscapes for a valorisation of high identity products

Mountain agriculture is made difficult by the geomorphological complexity of the territory. This is especially true for viticulture: over the centuries the work of men in such a difficult environment

Is early defoliation a sustainable management practice for mediterranean vineyards? Case studies at the portuguese lisbon winegrowing region

Context and purpose of the study ‐ Recently early defoliation (ED) has been tested in several high‐ yielding grapevine varieties and sites aiming at reducing cluster compactness and hence, regulating yield and susceptibility to botrytis bunch rot infection. The reported results have been generally positive, encouraging growers to use this canopy management technique as an alternative for replacing the conventional time‐consuming cluster thinning and, simultaneously, as a sustainable practice to reduce the use of fungicides. However, ED increases berry sunburn risks and/or can induce carry‐over effects on vigor and node fruitfulness as shown in the two case studies reported in this work.

Use of chitosan as a secondary antioxidant in juices and wines

Chitosan is a polysaccharide produced from the deacetylation of chitin extracted from crustaceous and fungi. In winemaking chitosan is mainly used in the clarification of grape juice and wine, stabilization of white wines, removal of metals and to prevent wine spoilage by undesired microorganisms. The addition of chitosan to model wine systems was able to retard browning, reduce levels of metallic ions (Fe and Cu) and to protect varietal thiols due to its antiradical activity1. The present experiment was planned in order to evaluate the use of chitosan as a secondary antioxidant at three different stages of Sauvignon blanc fermentation and winemaking. Sauvignon blanc juices from three different locations were obtained at a commercial winery in Marlborough, New Zealand. One lots of grapes was collected from a receival bin and pressed into juice with a water-bag press, and a further juice sample was collected from a commercial pressing operation. Chitosan (1 g/L, low molecular weight, 75 – 85% deacetylated) was added to the juice after pressing, after cold settling, after fermentation, or at all these stages. Controls without any chitosan additions were also prepared.

Application of satellite-derived vegetation indices for frost damage detection in grapevines

Wine grape production is increasingly vulnerable to freeze damage due to warming climates, milder winters, and unpredictable late spring frosts. Traditional methods for assessing frost damage in grapevines which combine fieldwork and meteorological data, are expensive, time-consuming, and labor-intensive. Remote sensing could offer a rapid, inexpensive way to detect frost damage at a regional scale. Remote sensing approaches were used to assess freeze damage in grapevines by evaluating satellite-derived vegetation indices (VIs) to understand the severity and spatial distribution of damage in several New York vineyards immediately after a frost event (May 17th-18th, 2023). PlanetScope 3m satellite images acquired before and after the freeze were used to map damage and measure changes in VIs for vineyards in the Finger Lakes region.