Terroir 1996 banner
IVES 9 IVES Conference Series 9 L’étude “terroirs d’Anjou”: un exemple de caractérisation intégrée des terroirs viticoles, utilisable à l’échelle parcellaire

L’étude “terroirs d’Anjou”: un exemple de caractérisation intégrée des terroirs viticoles, utilisable à l’échelle parcellaire

Abstract

Natural factors of the production (“terroir” and vintage) are known as an important element for identifying wines by their genuine typicité and their authenticity. The program “Terroirs d’Anjou” (1994-1999) aims at bringing the necessary scientific basis for a rational and reasoned exploitation of the terroir. This study is based on a method of soil characterization called: “Basic Terroir Units” concept (UTB). This method integrates the three main physical components of the terroir (geology, soil, environment landscape). An viticultural survey is farthermore driven to take into account human factors of the terroir. The study contains 29 communes situated to the south of the Loire river and covers the “Coteaux du Layon” and “Coteaux de l’Aubance” areas. All the datas of the terroir characterization are spatialised within a Geographical Information System that allows the publishing of thematic maps. The concrete valorization of the work is to produce cartographie atlas at the disposal of wine­growers presenting the diverse “Basic Terroir Units”, and also advisory maps in order to optimise the wine-growers practises according to the terroir. Each map uses a large working scale (1:25 000) which allows for the results to be used for each parcel.

DOI:

Publication date: March 2, 2022

Issue: Terroir 1998

Type: Article

Authors

D. RIOUX, P. GUILBAULT, R. MORLAT

U.R.V.V. – Centre I.N.R.A. d’Angers – 42, rue Georges Morel – BP 57 – 49071 BEAUCOUZE Cedex – France

Tags

IVES Conference Series | Terroir 1998

Citation

Related articles…

Identification and quantification of molecular ellagitannins in cognac eaux-de-vie by a mass spectrometry method: barrel toasting and aging impact

Ellagitannins are the main oak wood phenolic compounds that contribute to wine and spirits organoleptic quality (color, astringency, bitterness)(1-3). Given the lack of knowledge regarding their composition and evolution in spirits, the objectives were to follow their extraction kinetic in Cognac “eaux-de-vie” matured in barrel representing different toasting and to observe their evolution and structural modifications during aging. METHODS: Eight different toasting levels were used for studying the impact of the toasting on ellagitannins composition. Two verticals (1978-2018) of “eaux-de-vie” samples coming from two terroirs were analyzed in order to observe ellagitannins evolution during aging. The above analyses were conducted using HPLC-Triple Quadrupole mass spectrometer (4) and the unknown compounds were identified by UPLC-Q-TOF, purified by preparative HPLC prior to 1D/2D-NMR analysis.

A generic method to analyze vine water deficit continuously

In the context of global warming, water scarcity is becoming an increasing issue worldwide. However, the reference method to characterize vine water deficit is based on water potential measurement, which is a destructive and discontinuous method. The current climatic context emphasizes the need for more precise and more continuous vineyard water use measurements in order to optimize irrigation and vine water deficit monitoring.

La zonazione della valle d’Illasi (Verona)

In the bottom of Val d’Illasi (Verona province), one of the major valleys which passes through the Lessini mountains, viticulture is widely extended. In the territory belonging to Illasi and Tregnago villages, which includes ca. 1100 ha of vineyards, devoted to produce Soave and Valpolicella DOC wines, an experimental survey was conducted on a network of twenty five reference vineyards.

Changes in grape-associated microbiome as a consequence of post-harvest withering

AIM: Grape withering is an oenological post-harvest process used for production of reinforced and sweet wines. Drying can be carried out by keeping the ripe grape in traditional large, well-aired rooms (non-controlled environment) or, more and more often, in a warehouse under controlled conditions of airflow and relative humidity (controlled environment)[1].

Observation and modeling of climate at fine scales in wine-producing areas

Global change in climate affect regional climates and hold implications for viticulture worldwide. Despite numerous studies on the impact of projected global warming on different regions