Terroir 1996 banner
IVES 9 IVES Conference Series 9 Methodology and zoning of A.O.C. natural soils. Example of “Pic Saint-Loup”

Methodology and zoning of A.O.C. natural soils. Example of “Pic Saint-Loup”

Abstract

[English version below]

Les travaux menés, dans le cadre du programme départemental pour la connaissance et la valorisation des terroirs viticoles, sur l’aire A.O.C. Coteaux du Languedoc / Pic Saint-Loup ont permis d’appliquer à l’échelle d’une Appellation d’Origine Contrôlée (13 communes), une méthodologie d’étude axée sur les aspects sol/climat/topographie qui concourent à l’identification des terroirs naturels, facteurs de typicité des vins. Dans un premier temps, un «diagnostic» de l’ensemble des critères du milieu naturel a été réalisé. Après avoir défini le cadre géologique, une prospection agro-pédologique au 1/10.000ème a permis de cartographier les différentes unités de sol ainsi que leurs positions topographiques. Les conditions climatiques sont également précisées d’un point de vue statistique (stations météo au sein de l’aire et stations limitrophes).

Dans un second temps, il était intéressant d’associer plus étroitement ces caractéristiques agro­environnementales à la culture de la vigne et à l’élaboration d’un vin typique. On approche ainsi au plus près de la notion de «terroir». Dans ce cadre, une singularité bioclimatique du Pic Saint-Loup a été identifiée sur la base de 3 indices viticoles corrélés à des caractéristiques intrinsèques et spécifiques des vins du Pic Saint-Loup. Les différentes unités de terroir naturel ont été cartographiées (typologie du sol, avec une estimation de la disponibilité en eau, associée au bilan radiatif) et décrites sous les différents aspects qui font leurs identités.

The works led, within the local program for the knowledge and the valorization of the wine soils, on the area A.O.C. Coteaux du Languedoc / Pic Saint-Loup allowed to apply on the scale of a registrated appellation origin (13 municipalities), a methodology of study centered on aspects ground/climate/topography which contribute to the identification of natural soils, factors of typical wines. At first, a «diagnosis » of ail the criteria of the natural environment was realized. Having definite the geologic frame, an agro-pedological prospecting to the 1/10.000th allowed mapping the various unities of ground as well as their topographic positions. The climatic conditions are also clarified by a statistical point of view (meteorological stations within the area and bordering stations).

In a second time, it was interesting to associate more strictly these agro-environmental characteristics to the culture of the vineyard and to the elaboration of a typical wine. One approaches so in closer the notion of “soil”. In this frame, a bioclimatic peculiarity of the Pic Saint Loup was identified on the basis of 3 wine indicators correlated in intrinsic and specific characteristics of wines of Pic Saint Loup. The various units of natural soil were mapped (typology of ground, with an estimation of the availability in water, associated to the radiative assessment) and described under the various aspects which make their identities.

Download the PDF

DOI:

Publication date: February 15, 2022

Issue: Terroir 2002

Type: Article

Authors

Jean-Paul STORAÏ (1), Jean-Luc TONDUT (2)

(1) Conseil général de l’Hérault – 1000 rue d’Alco – F. 34087 Montpellier cedex 4
(2) Association Climatologique de l’Hérault – 85 avenue d’Assas – F 34000 Montpellier

Keywords

méthodologie, terroir naturel, sol, climat, viticulture
methodology, natural soil, ground, climate, vine growing(2) Association Climatologique de l’Hérault – 85 avenue d’Assas – F 34000 Montpellier

Tags

IVES Conference Series | Terroir 2002

Citation

Related articles…

Possible methods of adaptation to the effects of climate change in the Tokaj Wine Region 

Viticulture’s adaptation to the harmful effects of climate change is globally the biggest challenge of the near future. Short, extremely intensive rainfalls and longer periods of drought are getting more frequent in the Tokaj Wine Region, where the majority of the vineyards are cultivated on steep slopes. Hence, erosion has high risk, especially when combined with the loess-based soils on about ten percent of the region. The environmentally beneficial cover crop and mulch usage can effectively reduce the risk of erosion, according to research done by the Tokaj Wine Region Research Institute of Viticulture and Oenology.
Read More

Elucidating contributions by vineyard site on volatile aroma characteristics of pinot noir wines

Correlations between vineyard site and wine have, historically, been limited due to lack of uniformity in scion and rootstock clone and lack of controlled pilot-scale winemaking conditions, particularly temperature

Read More

Evaluation of the effect of regulated deficit irrigation on Vitis vinifera Cabernet-Sauvignon physiological traits and final fruit composition

Climate change establishes challenges, as well as opportunities for many sectors, and markedly the wine sector.

Read More

Implementing VIS-NIR spectroscopy as a rapid and non-intrusive technique for assessing anthocyanin and phenolic concentrations in Vitis vinifera L. Grenache whole grape berries

Anthocyanins and phenolic compounds play a crucial role in winemaking, contributing to the profile, flavor, color, texture, and stability of wine. Grape clusters, specifically Vitis vinifera L. cv. Grenache, were handpicked from a commercial vineyard sited in Tudelilla, La Rioja, Spain (42°18′ 52.26″, Long. -2°7′ 59.15″, Alt. 582 m) on five distinct dates from veraison to harvest during the 2015 season. Non-contact spectral measurements were conducted on intact grape berries using a VIS-NIR spectrometer operating in the 570 – 1000 nm spectral range under controlled laboratory conditions, positioned at a distance of 25 cm from the berries. The quantification of 16 anthocyanins and phenols in 120 grape clusters was performed using HPLC, established as the reference method for validating the spectral tool.

Read More

Grape pomace, an active ingredient at the intestinal level: Updated evidence

Grape pomace (GP) is a winemaking by-product particularly rich in (poly)phenols and dietary fiber, which are the main active compounds responsible for its health-promoting effects. GP-derived products have been proposed to manage cardiovascular risk factors, including endothelial dysfunction, inflammation, hypertension, hyperglycemia, and obesity. Studies on the potential impact of GP on gut health are much more recent. However, it is suggested that, to some extent, this activity of GP as a cardiometabolic health-promoting ingredient would begin in the gastrointestinal tract as GP components (i.e., (poly)phenols and fiber) undergo extensive catabolism, mainly by the action of the intestinal microbiota, that gives rise to low-molecular-weight bioactive compounds that can be absorbed and utilized by the body.

Read More