Terroir 2006 banner
IVES 9 IVES Conference Series 9 Discriminant value of soil properties for terroir zoning

Discriminant value of soil properties for terroir zoning

Abstract

Environmental analysis (climate, vegetation, geomorfoloy-lanscape, lithology and soil) and its integration in a quality index taking the Appellation of Origin as the sole universe are used as general methodology for terroir zoning in Spain (Sotés and Gómez-Miguel, 1986-2005). This methodology is also applied to specific aspects of different Spanish Appellations of Origin (size, distribution and landscape peculiarities and vine occupation index). In this work, the whole set of results of all Appellations of Origin is taken as the universe (2.323.094 ha of surface and 144.248 ha of vineyard) and the two higher taxonomic units (soil series), where more than 75 % of the vineyard is located, are taken as comparative elements. Unit characterization is made with ninety soil variables and a multicriterion method, which explains behavior differences in these variables and in the vineyard quality index, is used for comparison. This analysis shows how every compared unit has a more similar behaviour to different units of the same Appellation than to other units with the same soil taxonomy but from different Appellations, except for more closed Appellations with similar environmental characteristics. The value of soil variables as discriminant elements for terroir classification in zoning studies can, then, be known. In the studied cases of this work, the overall statistic behavior of the variables set is related to the wine production specific characteristics of every Appellation.

DOI:

Publication date: January 12, 2022

Issue: Terroir 2006

Type: Article

Authors

Vicente GÓMEZ-MIGUEL and Vicente SOTÉS

Universidad Politécncia de Madrid
Avda Complutense s/n. 28040 Madrid, España

Contact the author

Keywords

terroir, soil, zoning, geomorphology, Spain

Tags

IVES Conference Series | Terroir 2006

Citation

Related articles…

Physiological and growth reaction of Shiraz/101-14 Mgt to row orientation and soil water status

Advanced knowledge on grapevine row orientation is required to improve establishment, management and outcomes of vineyards on terroirs with different environmental conditions (climate, soil, topography) and in view of a future change to more extreme climatic conditions. The purpose of this study was to determine the combined effect of row orientation, plant water status and ripeness level on the physiological and viticultural reaction of Shiraz/101-14 Mgt.

Effects of mechanical leafing and deficit irrigation on Cabernet Sauvignon grown in warm climate of California

San Joaquin Valley accounts for 40% of wine grape acreage and produces 70% of wine grape in California. Fruit quality is one of most important factors which impact the economical sustainability of farming wine grapes in this region. Due to the recent drought and expected labor cost increase, the wine industry is thrilled to understand how to improve fruit quality while maintaining the yield with less water and labor input. The present study aims to study the interactive effects of mechanical leafing and deficit irrigation on yield and berry compositions of Cabernet Sauvignon grown in warm climate of California.

The effects of cane girdling on berry texture properties and the concentration of some aroma compounds in three table grape cultivars

The marketability of the table grapes is highly influenced by the consumer demand; therefore the market value of the table grapes is mainly characterized by its berry size, colour, taste and texture. Girdling could cause accumulation of several components in plants above the ringing of the phloem including clusters and resulting improved maturity. The aim of the experiments was to examine the effect of girdling on berry texture characteristics and aroma concentration.

Application of a fluorescence-based method to evaluate the ripening process and quality of Pinot Blanc grape

The chemical composition of grape berries at harvest is one of the most important factors that should be considered to produce high quality wines. Among the different chemical classes which characterize the grape juice, the polyphenolic compound, such as flavonoids, contribute to the final taste and color of wines. Recently, an innovative non-destructive method, based on chlorophyll fluorescence, was developed to estimate the phenolic maturity of red grape varieties through the evaluation of anthocyanins accumulated in the berry skin. To date, only few data are available about the application of this method on white grape varieties.

Different yield regulation strategies in semi-minimal-pruned hedge (SMPH) and impact on bunch architecture

Yields in the novel viticulture training system Semi-Minimal-Pruned Hedge (SMPH) are generally higher compared to the traditional Vertical Shoot Positioning (VSP). Excessive yields have a negative impact on the vine and wine quality, which can result in substantial losses in yield in subsequent vintages (alternate bearing) or penalties in fruit quality. Therefore yield regulation is essential. The bunch architecture in SMPH differs from VSP. Generally there is a higher amount but smaller bunches with lower single berry weights in SMPH compared to VSP.