Terroir 2010 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2010 9 Ancient zoning in the world (T2010) 9 Caractérisation et valorisation des terroirs de l’appellation d’origine contrôlée Puisseguin-Saint-Emilion

Caractérisation et valorisation des terroirs de l’appellation d’origine contrôlée Puisseguin-Saint-Emilion

Abstract

Le terroir viticole, qui est la base de la délimitation des aires d’Appellation d’Origine Contrôlée, est une notion complexe dans laquelle sont en interaction la vigne, les facteurs naturels tels que le sol, le climat, ainsi que le facteur humain à travers les pratiques des viticulteurs. Le terroir conditionne la composition des raisins et ainsi la qualité et la typicité des vins qui en sont issus. Suite à la fusion du syndicat viticole de Puisseguin avec celui de Saint-Emilion pour former le Conseil des Vins de Saint-Emilion, et dans une démarche globale de connaissance et de valorisation de cette nouvelle entité géographique, une étude sur le secteur de l’AOC de Puisseguin a été menée. Une cartographie des sols au 1/25 000 décrivant les différentes unités pédologiques a été réalisée ainsi qu’une analyse du système de conduite. Dans chaque unité pédologique identifiée, une fosse a été décrite puis analysée, permettant de définir les principales caractéristiques agronomiques de ces sols. Des conseils adaptés à chaque unité sont proposés afin de mieux valoriser ces terroirs. Chaque viticulteur a ainsi pu bénéficier des résultats de cette étude à travers un manuel technique et des communications orales.

English version: Terroir which is the basis for the controlled origin of wines (“Appellation d’Origine Contrôlée”) is a very complex concept including the vine, climate, soil and human factors such as technical practices. Terroir plays a very important role in grape composition and in wine quality and typicity. Following to the merge of Puisseguin and Saint-Emilion winegrowers associations and in order to improve the knowledge and the valorization of this terroir, a study was carried out on the Puisseguin area. This study comprized an identification of pedological units through soil mapping at a scale of 1/25 000th and a survey of currently existing training systems. For each pedological unit, advices were formulated to improve terroir valorization. Moreover, every wine grower received these results through a technical manual and oral communications.

DOI:

Publication date: October 1, 2020

Issue: Terroir 2010

Type: Article

Authors

Laure de RESSEGUIER (1), Jean-Philippe ROBY (1), Jean-Charles VAN HOVE (2) et Cornelis van LEEUWEN (1)

(1) ENITA de Bordeaux, UMR EGFV, ISVV, 1 cours du Général de Gaulle, CS 40201, 33 175 Gradignan cedex, France
(2) Clos Marguerite, 4 Flemmings road, PO Box 7, Seddon, Marlbor

Keywords

Vine plant – terroir – soil – mapping – training system – valorisation – AOC Puisseguin Saint-Emilion

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

Evaluation of field inoculation of Kocuria rhizophila and Streptomyces violaceoruber as biostimulants under water availability conditions in grapevines

Agricultural productivity must promote management systems that incorporate sustainability principles, and viticulture is no exception.

Outside and inside grapevine roots: arbuscular mycorrhizal fungal communities in a ‘nebbiolo’ vineyard 

In field conditions, grapevine roots are colonized by arbuscular mycorrhizal fungi (AMF). Little is known about the species composition of AMF communities associated to grapevine.

Quantification of red wine phenolics using ultraviolet-visible, near and mid-infrared spectroscopy combined with chemometrics

The use of multivariate statistics to correlate chemical data to spectral information seems as a valid alternative for the quantification of red wine phenolics. The advantages of these techniques include simplicity and cost effectiveness together with the limited time of analysis required. Although many
publications on this subject are nowadays available in the literature most of them only reported feasibility
studies. In this study 400 samples from thirteen fermentations including five different cultivars plus 150
wine samples from a varying number of vintages were submitted to spectrophotometric and chromatographic phenolic analysis.

Residual copper quantification on grapevine’s organs

Copper is listed among the active substances candidates for substitution (Regulation EU 2015/408). Yet still, because of the lack of valid alternatives, the European Commission recently confirmed its usage authorization by limiting the maximum amount to 28 Kg per hectare in 7 years, i.e. an average of 4 kg/year (Reg. EU 2018/1981).This restriction is due to copper accumulation in soils and surface waters both caused by a steady application, especially on perennial crops (Riepert et al., 2013). The aim of this work is to determine if treatments with reduced copper dosages are able to reach different grapevine’s organs, with particular focus on the core of bunches, and if these small amounts can ensure the respect of the legislative prescription, without compromising the phytosanitary conditions of the vineyards, thus grape yields.

The environmental footprint of selected vineyard management practices: A case study from Logroño (La Rioja) Spain

Viticulture is globally important for socioeconomic and environmental reasons. The EU is globally leading grape and wine production, and Spain is among the top grape and wine producers. As climate change affects viticulture, mitigation and adaptation are crucial for protecting grape production. In this research work, data on viticultural management practices such as soil cultivation, irrigation, energy, machinery, plant protection and the use of fertilizers from vineyards located in Logroño (La Rioja) have been obtained.