Terroir 2004 banner
IVES 9 IVES Conference Series 9 Climatic zoning of the Ibero-American viticultural regions

Climatic zoning of the Ibero-American viticultural regions

Abstract

The Ibero-American Network of Viticulture, a component of the program of agricultural technology of the CYTED (Ibero-American Program of Science and Technology for Development), is developing the project “Zoning Methodology and Application in Viticultural Regions of Ibero-America”. An objective of the project is the climatic characterization of this large viticultural region with the participation of ten countries: Argentine, Bolivia, Brazil, Chile, Cuba, Spain, Mexico, Peru, Portugal, and Uruguay. The first step in the research is based on Systematic Multi-criteria Climatic Classification (CCM) for Geo-viticultral regions. The project has assembled a climatic database that characterises the viticultural regions that includes variables relevant to viticulture: air temperature (average, maximum, and mininmum), precipitation, relative humidity, solar radiation, number of sunshine hours, wind speed, and evapotranspiration. The application of the climatic indices IH, IF, and IS of the CCM System, highlights the variability of the thermal and hydrological components of the viticultural climate. The analysis of the climatic database, show the large climatic variability of the region. The initial results have identified seventeen viticultural climates in the twenty-six viticultural regions in the nine countries of the project. The identified viticultural climates represent forty-four percent of the climatic groups identified at the global level. This large regional climatic variability explains, to a large extent, the large diversity in the products of the Ibero-America region, including the organolepctic characteristics and the uniqueness of the vines produced. The research has also highlighted viticultural areas characterised by large inter-annual climatic variability. In such areas, the viticultural climatic classification changes as a function of the time of the year where grape-wine can be produced. The undergoing climate zoning is going to be used is a second phase of the project as a component of an integrated study that includes regional edaphic factors, and indicators of ecophysiological responses of the vineyards to natural factors.

Download the PDF

DOI:

Publication date: January 12, 2022

Issue: Terroir 2004

Type: Article

Authors

V. Sotés (1) et J. Tonietto (2)

(1) universidad Politécnica De Madrid, Etsi Agrónomos – Ciudad Universitaria S/N – E28040 – Madrid, Spain
(2) embrapa – National Research Center For Viticulture And Wine – Cnpuv, Rua Livramento, 515 ; 95700-000 – Bento Gonçalves, Brazil

Contact the author

;  

Tags

IVES Conference Series | Terroir 2004

Citation

Related articles…

Perceptive interactions and wine typical fruity aroma 

In this study we developed a methodology to prepare aromatic reconstitutions from fractions of a wine organic extract and we assessed these reconstitutions both in wine model solution and in de- aromatized wine.

Read More

The origin and the discovery of “terroir”

Le mot “terroir” dérive du latin “terra”, mais déjà les Romains l’indiquaient comme “locus” ou”loci”, c’est-à-dire un lieu ayant le “genius”destiné à la production d’un produit d’excellente qualité.

Read More

Leaf elemental composition in a replicated hybrid grape progeny grown in distinct climates

The elemental composition (the ionome) of grape leaves is an important indicator of nutritional
health, but its genetic architecture has received limited scientific attention. In this study, we
analyzed the leaf ionome of 131 interspecific F1 hybrid progeny from a Vitis rupestris (♀) X Vitis
riparia (♂) cross. The progeny were replicated in New York, South Dakota, Southwest Missouri ad Central Missouri, and the concentration of 20 elements were measured in their leaves at
three different phenological stages during the growing season. In leaves collected at the apical node at anthesis, elemental concentrations correlated in a consistent manner (p < 0.05) across all four geographic locations. In subsequent phenological stages, elemental ratios in the apical-node leaves remained consistent across the South Dakota and New York sites, but not across the Missouri sites. In leaves collected at the basal and middle nodes, correlations varied greatly across all locations.

Read More

Impacts on water availability for vitiviniculture worldwide using different potential evapotranspiration methods

Beyond the sole warming globally perceived and monitored, climate change impacts water availability. Increasing heatwaves frequency observed during the last decades

Read More

Analysis of mousy off-flavour wines

Winemakers are increasingly experimenting with new techniques, such as spontaneous fermentation, prolonged yeast contact, higher pH, minimal sulphur dioxid, filtration and clarification or oxidative ageing. Along with this, the risk of microbial spoilage increases, and so the off-flavour mousiness, long time underestimated, is becoming more frequent. Characteristic of the mousy off-flavour is the delayed perception after swallowing the wine. After a few seconds the flavour appears, reminiscent of a dirty mouse cage. There are three known compounds that cause mousy off-flavor: 2-ethyltetrahydropyridine, 2-acetyltetrahydopyridine, and 2-acetylpyrroline. Yeasts such as Dekkera/Brettanomyces and heterofermentative lactic acid bacteria like Lactobacillus hilgardii can release these compounds.

Read More