Analysis of climate spatio-temporal variability in the Conegliano-Valdobbiadene DOCG wine district

Abstract

Local climate characterization is fundamental in terroir description, yet global change perspectives raise questions about its feasibility, since temporal stability cannot be no more assumed for the forthcoming years.
The objective of this work was to gain a better understanding of the climatic spatio-temporal variability of a grapevine growing area, and how this has changed during recent times.
Using as a case-study the Conegliano-Valdobbiadene DOCG wine district in North-Eastern Italy, we developed a methodology to downscale daily mean air temperature from the European Climate Assessment gridded dataset (E-OBS), to derive daily temperature surfaces at 500m spatial resolution. This allowed to analyse how the spatio-temporal variability affected grapevine phenology in the last 60 years.
The main results showed that, respect to the 1950-1979 period, the average Winkler index between 1980 and 2008 showed a +184 °C increase, with little spatial variation, as well as for the estimated dates for the main phenological events, which showed a generalized anticipation of about 2 to 5 days. More pronounced changes were observed on the interannual variability, which showed increases in both the average values and pattern of distribution.

DOI:

Publication date: December 3, 2021

Issue: Terroir 2010

Type: Article

Authors

G. Fila, F. Meggio, L.M. Veilleux, A. Pitacco

University of Padova, Department of Environmental Agronomy and Crop Science I-35020 Legnaro (PD), Italy

Contact the author

Keywords

Grapevine, Climate Change, Temperature, Phenology, Downscaling, Spatial Interpolation

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

Impact of red blotch disease on Cabernet Sauvignon and Merlot grape and wine composition and wine sensory attributes

Grapevine Red Blotch disease (RB) is a recently discovered disease that has become a major concern for the viticulture and winemaking industry in California, USA. The causal
agent, Grapevine Red Blotch Virus (GRBV) was identified in 2011 and its presence was confirmed in several states in the US, in Canada, and in Switzerland. It has been demonstrated that RB compromised the regulation of ripening by suppressing specific ripening events, altering the expression patterns of transcription factors and causing hormonal imbalances in Zinfandel.

Chemical composition of cool-climate Sauvignon blanc grape skins clones during ripening

Sauvignon blanc is the most important variety in cool valleys in central Chile accounting 15,522 ha which corresponds to 42.4% of the cultivated surface with white varieties in Chile

Effects of the synergy between T. delbrueckii and S. cerevisiae in the winemaking of traditional cultivars from southeastern Italy

The combination of Torulaspora delbrueckii and Saccharomyces cerevisiae in co-inoculation and sequential inoculation in winemaking was investigated as an innovative strategy to increase the aromatic profile of wines like Verdeca and Nero di Troia wines, two traditional varieties from south-eastern Italy (Apulia Region).

Three new Apulian seedless varieties available for the table grape supply chain

The table grape industry in Europe is undergoing significant changes. For instance, in Italy, the national register of vine varieties was established in 1969, and since then, many varieties of table grapes have been registered. In the first thirty years, from 1969 to 1999, 62 seeded and 24 seedless varieties were registered. In the subsequent period, from 2000 to the present day, 23 seeded varieties and 99 seedless varieties were registered.

Brettanomyces bruxellensis and off-odours: genetic and proteomic approaches to unravel the molecular mechanism of ethyl-phenols production

Brettanomyces/Dekkera yeasts in wine are able to produce various spoilage compounds that are, at high concentration, detrimental to wine quality. The principal spoiler compounds associated with Brettanomyces spp. are vinyl and ethyl-phenols that are responsible for off- odours described as “animal”, “medicinal”, “sweaty leather”, “barnyard”, “spicy” and “clove-like”.