Terroir 2012 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2012 9 Grapegrowing climates 9 Spatial Analysis of Climate in Winegrape Growing Regions in Portugal

Spatial Analysis of Climate in Winegrape Growing Regions in Portugal

Abstract

Spatial climate data at a 1 km resolution has allowed for a comprehensive mapping and assessment of viticulture DOs regions in Portugal. Overall the 50 regions and sub-regions in Portugal range from just over 1200 GDD in the Vinho Verde to just over 2300 GDD in Alentejo with 34% of the wine producing areas falling in a Region II, 28% a Region III and 30% a Region IV on the Winkler classification system. On the Huglin Index the sub-regions range from just over 1600 to nearly 2700, representing HI climate types from Very Cool to Very Warm. For the GST index the sub-regions have a range from 15.7ºC to 20.7ºC, representing Cool, Intermediate and Hot climate maturity suitability on the GST. However, the results show that the spatial variability of climate within the regions, can be significant, with some regions representing as many as five climate classes suitable for viticulture. The results show how important it is to develop within region assessments of climate suitability for viticulture. Finally the diversity of climate types suitable for viticulture found in the Portuguese Wine Regions shows the broad range of wine styles that can be produced in the country.

DOI:

Publication date: August 27, 2020

Issue: Terroir 2012

Type: Article

Authors

Gregory V. JONES (1), Fernando ALVES (2)

(1) Department of Environmental Studies, Southern Oregon University, 1250 Siskiyou Boulevard, Ashland, Oregon 97520, USA
(2) ADVID, Associação para o Desenvolvimento da Viticultura Duriense, Qta. St. Maria, APT 137, 5050-106 Godim, Portugal

Contact the author

Keywords

viticulture, wine, climate, Portugal

Tags

IVES Conference Series | Terroir 2012

Citation

Related articles…

Caratterizzazione vitivinicola delle “Terre del Piacenziano” ricomprese nella zona D.O.C. “colli piacentini” attraverso l’analisi sensoriale dei vini prodotti

I territori della Riserva Geologica del Piacenziano sono parte del pedeappennino piacentino e sono noti per essere la culla del Pliocene, quel periodo di storia della Terra compreso tra 5.3 e 1.8 milioni di anni fa. Gli strati argillosi e sabbiosi riccamente fossiliferi qui presenti sono da sempre oggetto di studi geo-paleontologici tant’è che il Pliocene medio (3.6-2.6 milioni di anni fa) è internazionalmente noto come Piacenziano. Le analisi sensoriali strutturate dei vini qui prodotti hanno evidenziato, soprattutto per il vino Monterosso, le positive peculiarità dei loro caratteri sensoriali e descritto gli scostamenti significativi del loro profilo sensoriale rispetto agli altri vini presi a riferimento.

FUNCTIONALIZED MESOPOROUS SILICA IS A VIABLE ALTERNATIVE TO BENTONITE FOR WINE PROTEIN STABILIZATION

The presence of grape-derived heat unstable proteins can lead to haze formation in white wines [1], an instability prevented by removing these proteins by adding bentonite, a hydrated aluminum silicate that interacts electrostatically with wine proteins leading to their flocculation. Despite effective, using bentonite has several drawbacks as the costs associated with its use, the potential negative effects on wine quality, and its environmental impact, so that alternative solutions are needed.

Metschnikowia pulcherrima as biocontrol agent in white winemaking

Biocontrol using non-Saccharomyces yeasts is an alternative strategy to chemical additives to prevent the growth of spoilage microorganisms.

Evaluation of intra-vineyard spatial and temporal variability of leaf area index using multispectral images obtained by satellite (Landsat 8, Sentinel-2) and unmanned aerial vehicle platforms

Estimation of vineyard leaf area index (LAI) is an important aspect for the winegrowers. However, tracking and monitoring are difficult tasks due to time constraints. Satellite and unmanned aerial vehicle (UAV) imaging have become a practical monitoring method for LAI. Nevertheless, for a proper LAI determination, the image’s spatial resolution is a key factor, since low-resolution images are incapable of distinguishing between adjacent vines due to the large area covered in each pixel, this leads to misinterpretation or generalisation of vineyard information.

Developing and assessing different cordon establishment techniques for long-term vineyard management

Aim: The aim of this research is to quantify the impacts of different cordon establishment techniques on vine health and longevity. It is hypothesised that wrapping developing cordon arms tightly around the cordon wire will cause a constriction of the vascular system, becoming worse over time and disrupting the flow of water and nutrients.