Terroir 2006 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2006 9 Integrated approach in terroir studies (Terroir 2006) 9 Topographic modeling with GIS at Serra Gaúcha, Brazil: elements to study viticultural terroir

Topographic modeling with GIS at Serra Gaúcha, Brazil: elements to study viticultural terroir

Abstract

Brazil is historically known at the international wine market as an importer, eventhough in the last decades there was an increase in quantity and quality of the internal production. Nowadays, about 40% of fine wines comsuption of the country are national ones. The main production region is called Serra Gaúcha, where the natural conditions are heterogeneous and viticulture is develloped in small properties, mainly done by the owners family. With the strong competition in internal and external market, there is a need to search distinct products in characteristic and typicality. In this context, the concept of terroir is important to drive an to match the grape variety and the cultural practices to the natural potential of each place. This work aim s to study the topographical components of the terroir at Serra Gaúcha using GIS. The study was based on a digital terrain model derived from 20 topographical map sheets in scale 1:50,000. The topographical variables analized were elevation, slope and aspect. Each variable was scores according to its suitability and integrated later on to generate topographical suitability map. The results show that 66% of the area has medium and 9% has high topographical suitability for grapes growth.

DOI:

Publication date: December 22, 2021

Issue: Terroir 2006

Type: Article

Authors

Eliana Casco SARMENTO (1), Eliseu WEBER (1), Heinrich HASENACK (1), Jorge TONIETTO (2) and Francisco MANDELLI (2)

(1) Universidade Federal do Rio Grande do Sul, Centro de Ecologia, av. Bento Gonçalves, 9.500, CEP 91501-970, Porto Alegre – RS, Brésil
(2) Embrapa, Centro Nacional de Pesquisa de Uva e Vinho. Rua Livramento, 515, 95700-000 Bento Gonçalves -RS, Brésil

Contact the author

Keywords

terroir, topography, GIS

Tags

IVES Conference Series | Terroir 2006

Citation

Related articles…

Preliminary results on the effect of different organic mulching on wine polyphenol content

Soil mulching is an interesting strategy to reduce soil evaporation, assist in weed control, improve soil structure and organic content, increase soil water infiltration, and decrease diurnal temperature fluctuations

Towards the definition of a terroir of grape dehydration for the production of ‘Passito’ wines in Valpolicella (Italy)

Aim: The aim of this study was to investigate the relationship between the molecular response of grapes during postharvest dehydration and the specific environment of two naturally ventilated rooms (called ‘fruttai’), located in two different sites in Valpolicella

Effect of intra‐vineyard ripeness variation on the efficiency of commercial enzymes on berry cell wall deconstruction under winemaking conditions

Intra-vineyard variation grape berry ripening occurs within bunches, between bunches on the same vine and between vines. Although it is assumed that such variation also occurs at the grape berry cell wall level, no study to data has investigated in any depth. Here we have used a intra-vineyard panel design to investigate pooled bunches from six vines (per panel) in the context of a winemaking scenario. The dissected vineyard was harvested by separate panels, where each panel was then subjected to a standard winemaking procedure with or without the addition of three different enzyme preparations for maceration.

Influence of the “terroir” (soil, climate and wine grower) on the quality of red Grenache wines in the Rhône Valley

«L’Observatoire Grenache» est un réseau de parcelles qui a été mis en place par l’Institut Rhodanien en Vallée du Rhône sur les millésimes de 1995 à 1999. Composé de 24 parcelles de Vitis vinifera L. cv Grenache noir, ce réseau vise à étudier l’influence du terroir (sol, climat et vigneron) sur la qualité des vins. Les parcelles ont été choisies afin de représenter différentes situations géographiques et géopédologiques de la vallée du Rhône. Le matériel végétal (clone, porte-greffe), la taille (cordon de Royat), la densité et l’âge de la parcelle ont été encadrées. Ainsi les conditions de milieu (sol, climat) et les pratiques du vigneron étaient les principales sources de variations.

Enzymes Impact During Fermentation On Volatile And Sensory Profile Of White Wines

Favoring the formation of volatile compounds and their precursors in must and wine represent one of the principal goals during winemaking technology. In recent years, most attention has been placed on using glycosidases to enlarge the aroma profile of white wines. The effect of enzymes makes odorless glycosidically-bound precursors be converted into aromatic compounds. This paper focuses to study the influence of enzymes (pectolytic and β-glycosides) administered before alcoholic fermentation, even if most studies analyze their use in different winemaking stages. Two semi-aromatic varieties such as Fetească regală and Sauvignon blanc were chosen.