terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Evaluation of terroir suitability for vine cultivation in new areas using geographic multi-criteria decision support

Evaluation of terroir suitability for vine cultivation in new areas using geographic multi-criteria decision support

Abstract

Based on historical vine cultivation, the recent development of wine production in Drama wine region (Greece) has led to vine cultivation expansion of white and red varieties. The current cultivation of 500 ha of vineyards is expected to increase in the coming years. Natural terroir units (NTU) have been designed recently to support the production of high quality wines in the region [1]. The aim of this work is to evaluate the relevancy of the proposed NTUs regarding their suitability to produce wines of specific sensorial identity, and to provide guidelines for correct site selection for the expanding wine industry of the region. The FAO Framework for Land Suitability Analysis was adapted to cover the main categories of input data: soil, climate, topography and other environmental properties [2]. The weights of each input data category have been developed with Analytical Hierarchical Process (AHP) based on interviews with the viticulturalists of the main wine producers. The geographic analysis was performed using the Agricultural Land Use Evaluation System (ALUES), which is based on the open-source statistical software R. The results reveal that the majority of the agricultural area is marginally to adequately suitable for the main white vine varieties currently cultivated, namely cv. Sauvignon blanc, with the exception of the cooler areas. On the contrary, red varieties (notably cv Cabernet Sauvignon) were  found to be more suitable to occupy the central part of the wine producing area. Nevertheless, it is possible to allocate white varieties to a wider range of sites with the adaptation of viticultural management.

Acknowledgements: The work presented is cofinanced by the ERDF and Greek national funds.

References:

1)  Karapetsas, N. et al, (2023). Delineating Natural Terroir Units in Wine Regions Using Geoinformatics. Agriculture, 13, 629, DOI:10.3390/agriculture13030629

2)  Bilas, G. et al., (2022). Land Suitability Analysis as a Tool for Evaluating Soil-Improving Cropping Systems. Land, 11, 2200, DOI:10.3390/land11122200

DOI:

Publication date: October 5, 2023

Issue: ICGWS 2023

Type: Article

Authors

Thomas Alexandridis1*, Nikolaos Karapetsas1, George Bilas1, Sefafeim Theocharis2, Stefanos Koundouras2

1 Laboratory of Remote Sensing, Spectroscopy and Geographical Information Systems, School of Agriculture, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
2 Laboratory of Viticulture, School of Agriculture, Aristotle University of Thessaloniki, 54124, Greece

Contact the author*

Keywords

DSS, land suitability analysis, geographic information systems

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Effect of irrigation in cover cropping vineyards

Cover cropping in vineyard is a sustainable and alternative soil management system to conventional tillage that is gaining more and more importance among winegrowers and is being promoted, among other organizations, by the European Union through the eco-schemes of the Common Agricultural Policy.
However, the use of cover crops in Mediterranean viticultural environments is conditioned, to a large extent, by the availability of irrigation water which, in a context of global warming like the one we are experiencing, must be adjusted to savings strategies, supplying to the vine only what it needs in each moment.

Optimization of the acquisition of NIR spectrum in grape must and wine 

The characterization of chemical compounds related with quality of grape must and wine is relevant for the viticulture and enology fields. Analytical methods used for these analyses require expensive instrumentation as well as a long sample preparation processes and the use of chemical solvents. On the other hand, near-infrared (NIR) spectroscopy technique is a simple, fast and non-destructive method for the detection of chemical composition showing a fingerprint of the sample. It has been reported the potential of NIR spectroscopy to measure some enological parameters such as alcohol content, pH, organic acids, glycerol, reducing sugars and phenolic compounds.

Phenolic composition and chromatic characteristics of blends of cv. Tempranillo wines from vines grown with different viticultural techniques in a semi-arid area

The quality and color stability of red wines are directly related to content and distribution of phenolic compounds. However, the climate change produces the asynchrony between the dates of technological and maturity of grapes. The crop-forcing technique (CF) restores the coupling between phenolic and technological ripeness while limits vineyard yields. Blending of wines is frequently used to equilibriate composition of wines and to increase their stability, color and quality. The aim of the present work is to study the phenolic composition and color of wine blends made with FW (wines from vines subjected to CF) and CW (wines for vines under the usual cultivation practices).

Polyphenol content of cork granulates at different steps of the manufacturing process of microagglomerated stoppers treated with supercritical CO2 used for wine bottling

The wine closure industry is mainly divided into three categories: screw caps, synthetic closures, and cork-based closures. Among this latter, microagglomerated cork stoppers treated with supercritical CO2 are now widely used, especially to avoid cork taint contaminations[1]. They are designed with cork granules obtained from cork offcuts of the punching process during the natural cork stoppers production. A previous study[2] showed that these stoppers released fewer polyphenols in 12 % (v/v) hydroalcoholic solution than natural cork stoppers.

Identification of a stable epi-allele associated with flower development and low bunch compactness in a somatic variant of Tempranillo Tinto

Grapevine cultivars are vegetatively propagated to preserve their varietal characteristics. However, spontaneous somatic variations that occur and are maintained during cycles of vegetative growth offer opportunities for the natural improvement of traditional grape cultivars. One advantageous trait for winegrowing is reduced bunch compactness, which decreases the susceptibility to pests and fungal diseases and favor an even berry ripening.