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.

Download the PDF

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…

Cultivo de la Malvasia en Tenerife

El archipiélago Canario, conocido en el pasado como las Islas del Vino, fue una gran potencia en la elaboración y comercialización del vino, sobre todo de caldos elaborados con la variedad Malvasía.
Read More

Identification of the agronomical and landscapes potentialities in “Côtes du Rhône” area (France)

“Côtes du Rhône”, like many other controlled appellation wine, represents high stakes in the economical, social cultural and historical domains. The scenery formed by vineyards reveals these cultural values. It offers by a pleasant and appealing environment for the inhabitants and the tourists. It is also a powerful marketing tool for the winemakers.

Read More

Atypical aging and hydric stress: insights on an exceptionally dry year

Atypical aging (ATA) is a white wine fault characterized by the appearance of notes of wet rag, acacia blossoms and naphthalene, along with the vanishing of varietal aromas. 2-aminoacetophenone (AAP) – a degradation compound of indole-3-acetic acid (IAA) – is regarded as the main sensorial and chemical marker responsible for this defect. About the origin of ATA, a stress reaction occurring in the vineyard has been looked as the leading cause of this defect. Agronomic, climatic and pedological factors are the main triggers and among them, drought stress seems to play a crucial role.[1]

Read More

Effect of pre-fermentative addition of oenological tannins on the volatile composition and colour characteristics of white wines

This study investigates the effect of pre-fermentative addition of oenological tannins on basic physicochemical parameters, total polyphenols index (TPI), antioxidant activity (DPPH method), colour traits, and volatile organic compounds (VOCs) of white wines made from ‘Vermentino’ or ‘Erbaluce’ grapes (Vitis vinifera).

Read More

Étude de la composante climatique du terroir viticole en Val de Loire : relation avec les facteurs physiques du milieu

The research carried out by the URVV of the INRA center in Angers aims to develop a methodology for the integrated characterization of the natural factors of viticultural terroirs, representative of the operating conditions of the vine and the sensory differences of the wines. In this context, the concept of Basic Terroir Unit (UTB) has been developed. The UTB represents a viticultural surface of variable geographical extension, defined as the association in a given place of a geological, pedological and landscape component, Morlat (1989), Riou et al. (1995).

Read More