Terroir 1996 banner
IVES 9 IVES Conference Series 9 A procedure for the zoning of grapevine in a hilly area (Collio, North-Eastern Italy) using simulation models and GIS

A procedure for the zoning of grapevine in a hilly area (Collio, North-Eastern Italy) using simulation models and GIS

Abstract

The zoning of grapevine in a hilly area should consider the variability of the environmental characteristics due to topography. Since soil and climate data are usually available as point data, reliable spatialization procedures need to be developed, mainly based on topography.
For a hilly area of about 7000 ha (including 5000 ha of the Registered Origin Denomination “Collio”) in Friuli-Venezia Giulia region, North-Eastern Italy, information was integrated from meteo stations, soil survey, geology and topography (coded in a Digital Elevation Model), using a GIS (Idrisi 2.0), a deterministic model of the cropping system (CSS, Cropping System Simulator) and a stochastic weather generator (Climak). CSS and Climak were developed at the University of Udine.
A procedure was developed for the spatialization of soil and climate parameters, starting from point data and using ancillary information mainly about topography. The area was then divided in homogeneous units (given by a unique combination of soil and climate conditions) on which the CSS model was run, obtaining data on potential yield for each unit and yield shortage due to possible water stress.
A field survey was carried out, focusing on the relationship between grape characteristics (yield, sugar concentration at harvest) and soil, climate, topography, cultivation management techniques and crop features.
The evaluation of land suitability for grapevine cultivation was based on 1) expected quality of production, as a function of aspect, Huglin’s heliothermal index and yield reduction in non irrigated vineyards due to water stress (the most limiting factor); 2) potential suitability for grapevine, depending on quality and yield productivity in non irrigated vines; 3) actual suitability for grapevine, obtained combining potential vocation and ease of cultivation (as a function of slope).
A multi-criteria procedure allowed to define 4 classes of land suitability for grapevine cultivation, described as ‘not suitable’, ‘poorly suitable because of high transformation costs’, ‘suitable’ and ‘very suitable’.

DOI:

Publication date: February 24, 2022

Issue: Terroir 2000

Type: Article

Authors

D. Franz, F. Danuso, R. Giovanardi and E. Peterlunger

Dipartimento di Produzione Vegetale e Tecnologie Agrarie, Università di Udine
via delle Scienze, 208 —33100 Udine, Italy

Contact the authors

Tags

IVES Conference Series | Terroir 2000

Citation

Related articles…

Un jour, l’AOD (Appellation d’Origine viticole Durable), fusion de l’origine et de la durabilité

The evolution of wine quality issues is historically expressed by the passage from wine quality (what is a wine?) to wine quality (what is a good wine?). Perhaps the next question could be: what is a good sustainable wine? To contribute to reflection on this theme, it may be worthwhile to undertake an exercise in prospective fiction, which we have identified in the hypothesis of the AOD, the “appellation d’origine durable”, a scenario we will develop in the light of developments in the wine industry and the regulation on geographical indications.

Somatic embryogenesis and polyploidy in grapevine: morphological shoot and leaf traits variations

Somatic embryogenesis (SE) has been used in a variety of biotechnology applications such as virus elimination, cryopreservation, induced mutagenesis and genetic transformation. The SE induction process may cause DNA alterations and ploidy changes, which may provide a source of genetic variability useful for the improvement of agronomic characteristics of plants. This research aims at investigating the spontaneous alterations of the genome in grapevine plants regenerated through SE. Regenerants obtained from different embryogenic events from three different grapevine genotypes (Catarratto, Frappato and Nero d’Avola) were analysed.

Gamay and Gamaret winemaking processes using stems: impact on the wine chemical and organoleptic characteristics

AIM: Stalks are empirically known to bring many benefits to the wine such as alcoholic reduction, color protection or improvement of the tannic intensity. Not much used on Swiss grape varieties, the aim of this study was to identify the relevance of using this type of winemaking in the case of Gamay and Gamaret red grape varieties.

Blend wines made of Syrah, Marselan and Tannat, had better color and more phenolic diversity than varietal wines

Background: Elaborating red-wines from grape cultivars with different polyphenolic profiles could improve wine color and its phenolic-dependent characteristics

Plastid genomics of Vitis vinifera L. for understanding the molecular basis of  grapevine (Vitis vinifera L.) domestication

The precise molecular mechanisms underlying the domestication of grapevine (Vitis vinifera L.) Are still not fully understood. In the recent years, next-generation sequencing (NGS) of plastid genomes has emerged as a powerful and increasingly effective tool for plant phylogenetics and evolution. To uncover the biological profile of the grapevine domestication process comprehensively, an investigation should encompass both the cultivated varieties (V. vinifera subsp. Vinifera) and their wild ancestors V. vinifera subsp. Sylvestris) across all potential sites of their distribution and domestication.