Terroir 2010 banner
IVES 9 IVES Conference Series 9 A multivariate clustering approach for a gis based territorial characterization of the montepulciano d’abruzzo DOCG “Colline Teramane”

A multivariate clustering approach for a gis based territorial characterization of the montepulciano d’abruzzo DOCG “Colline Teramane”

Abstract

The aim of the project was to characterize the Premium Denomination of Guaranteed Origin (DOCG) “Colline Teramane” wine-growing region and to delineate and define homogeneous zones (terroir units) within it, by applying a multivariate clustering approach combined with geomatics. The inventory, characterization and classification of the land resources included components of climate (temperature and rainfall from meteorological stations), landform (Digital Elevation Model) and lithology (geolithologic map). Managing of environmental variables was performed using a GIS. From the environmental variables, vine-related derived indices (bioclimatic: Huglin index, cool night index, Riberau-Gayon-Peynaud index; and morphologic: Aspect, Topographic Wetness Index, Curvature, Slope, Incoming Solar Radiation) were calculated, spatialized and implemented to the GIS. Then, normalized variable values for each raster cell were use in a PCA followed by a multivariate clustering algorithm (Isodata) to obtain a continuous morpho-climatic map, in which each cluster represented a unit or zone. Finally, the morpho-climatic map obtained was overlaid with the geolithologic map. The result shows different morpho-climatic conditions located over different lithotypes.

DOI:

Publication date: October 8, 2020

Issue: Terroir 2010

Type: Article

Authors

Jose Carlos Herrera Nuñez (1), Solange Ramazzotti (1), Michele Pisante (1)

(1) Agronomy and Crop Sciences Research and Education Center, Department of Food Science,
University of Teramo, via C. Lerici 1, 64023 Mosciano Sant’Angelo (TE), Italy

Contact the author

Keywords

Geomatics, GIS, Agro-ecological zoning, multivariate clustering, terroir unit

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

Effect of potential crop on vine water constraint

It is important to quantify the effect of potential crop on vine water constraint in order to adapt vine-growing consulting and vine management to the Mediterranean climate conditions

Collective management for landscape and biodiversity conservation in viticulture: The Life + BioDiVine project

Environmental awareness is globally rising among scientific community, politicians and general public. Biodiversity conservation is becoming a concern for farmers

Chromatic characteristics of Nermantis and Termantis wines from traditional and withered grapes

The work aims to characterise the colour features of the wines of two new resistant varieties breeeded at the Edmund Mach Foundation (Italy) and recently inscribed in the Italian National Registriy of Vine Varieties.

VOLATILE AND GLYCOSYLATED MARKERS OF SMOKE IMPACT: EVOLUTION IN BOTTLED WINE

Smoke impact in wines is caused by a wide range of volatile phenols found in wildfire smoke. These compounds are absorbed and accumulate in berries, where they may also become glycosylated. Both volatile and glycosylated forms eventually end up in wine where they can cause off-flavors. The impact on wine aroma is mainly attributed to volatile phenols, while in-mouth hydrolysis of glycosylated forms may be responsible for long-lasting “ashy” aftertastes (1).

Metatranscriptomic analysis of “aszú” berries: the potential role of the most important species of the grape microbiota in the aroma of wines with noble rot

Botrytis cinerea has more than 1200 host plants and is one of the most important plant pathogens in viticulture. Under certain environmental conditions, it can lead to the development of a noble rot, which results in a specific metabolic profile, altering physical texture and chemical composition. The other microbes involved in this process and their functional genes are poorly characterised. We have generated metatranscriptomic [1,2] and DNA metabarcoding data from three months of the Furmint grape variety, representing the four phases of noble rot, from healthy berries to completely dried berries.