GiESCO 2019 banner
IVES 9 IVES Conference Series 9 GiESCO 9 Viticultural potential assessment and its spatial delineation analysis in Goriška Brda viticultural area

Viticultural potential assessment and its spatial delineation analysis in Goriška Brda viticultural area

Abstract

Context and purpose of the study – Viticultural potential has a complex conditioning, determined by relief, soil, climate and lithology. Delineation of viticultural potential from vineyard areas is essential for the purpose to collect the necessary data for viticultural zoning. Using this data, we can achieve greater yield quality, which is the most important criteria in viticulture. The main purpose of this research is characterizing of viticultural potential and zoning of homogeneous viticultural zones in Goriška Brda region by assessing the suitability of defined ecological factors.

Material and methods – Fourteen environmental factors, which represent relief, climate, soil and lithology, were used to evaluate and determine the viticultural potential which is further delimited in homogeneous viticultural zones within Goriška Brda study site, characterized by a mild Mediterranean climate. Each zone was described in terms of its viticultural potential, which expresses the types of wine that can be produced according to its ecological suitability. The spatial distributions of the environmental parameters were achieved using GIS-based multicriteria methodology. Spatial analysis was conducted at fine scale.

Results – Inside of study area, there were defined three zones with different viticultural potential, indicating the wine types that can be produced: a zone suitable for quality white wines and red table wines; a zone suitable for quality white wines; a zone suitable for sparkling and white table wines and wines for distillates. These zones make up the viticulture potential map of Goriška Brda study site. The south-western area, closer to the Mediterranean Sea, was defined as mainly suitable to produce quality white wines. Nevertheless, the north-eastern part was defined as suitable for production of mainly white table wines, sparkling wines, and wines for distillates. This research provides a map of viticultural potential and delimitate viticultural homogeneous zones for the winegrowing area of Goriška Brda. It also provides a spatial analysis of the ecological structure with suitability of ecological factors for different wine types. The results reveal the high spatial variability of the viticultural potential when analyzed at fine scale.

DOI:

Publication date: September 8, 2023

Issue: GiESCO 2019

Type: Poster

Authors

Igor SIRNIK1,2*, Hervé QUENOL1, Miguel Angel JIMÉNEZ-BELLO2, Juan MANZANO3, Liviu Mihai IRIVIA4, Cristian V. PATRICHE5, Ana ŽUST6

1 COSTEL, UMR6554 LETG CNRS, Université Rennes 2, France
2 Instituto de Ingeniería del Agua y Medio Ambiente, Universitat Politècnica de València, Spain.
3 Centro Valenciano de Estudios sobre el Riego (CVER), Universitat Politècnica de València, Spain
4 University of Agricultural Sciences and Veterinary Medicine, Romania
5 Romanian Academy, Department of Iași, Geography Group, 8 Carol I, 700505 Iași, Romania
6 Slovenian Environment Agency, Vojkova 1b, Ljubljana, Slovenia

Contact the author

Keywords

zoning, GIS, grapevine, environmental factors, wine types, Slovenia

Tags

GiESCO | GiESCO 2019 | IVES Conference Series

Citation

Related articles…

New crossbreed winegrape genotypes cultivated under rainfed conditions in a semi-arid Mediterranean region

Traditional drought tolerant varieties such as Cabernet Sauvignon, Monastrell, and Syrah [1], have been used as parents in the grapevine breeding program initiated by the Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental (IMIDA) in 1997 [2]. This work presents the results of evaluating three new genotypes obtained from crosses between ‘Monastrell’ and ‘Cabernet Sauvignon’ (MC16 and MC80) and between ‘Monastrell’ and ‘Syrah’ (MS104), comparing their performance under conditions of water scarcity and high temperatures with that of their respective parental varieties. For this purpose, the six genotypes were cultivated under controlled irrigation conditions (60% ETc) and rainfed conditions.

Behaviour of two training systems for mechanical pruning combined with different nitrogen fertilizations on cv. Colombard

Today winegrowers involved in mechanical winter pruning are applying this viticultural technique on two main training systems, the free cordon, appearing to be the more efficient, and the trellised vertical shoot positioning (VSP) system. The main reasons for maintaining the trellis are generally due to common habits in vineyard management, risk of wind damage for the shoots, or risk of decrease in photosynthesis potential. The aim of the study was to assess the effects of the two training systems on vine. In addition, different nitrogen fertilization levels were applied on the two systems to evaluate the best combination to achieve yield and grape quality.

Temperature variability assessment at vineyard scale: control of data accuracy and data processing protocol

Climatic variability studies at fine scale have been developed in recent years with the reduction of material cost and the development of competitive miniaturized sensors. This work is forming part the LIFE-ADVICLIM project, of which one of the objectives is to model spatial temperature variability at vineyard scale. In the Bordeaux pilot site, a large network of data loggers has been set up to record temperature close to the vine canopy. The reduced distance between plant foliage and measurement equipment raises specific issues and leads to an increased rate of outliers compared to data retrieved from classical weather stations. Some of these were detected during data analysis, but others could not be easily identified. The present study aims to address the issue of data quality control and provide recommendations for data processing in climatic studies at fine scale.

Investigating three proximal remote sensing techniques for vineyard yield monitoring

Yield monitoring can provide the winegrowers with information for precise production inputs during the season, thereby, ensuring the best possible harvest. Yield estimation is currently achieved through an intensive process that is destructive and time-consuming. However, remote sensing provides a group of proximal technologies and techniques for a non-destructive and less time-consuming method for yield monitoring.The objective of this study was to analyse three different approaches, for measuring grapevine yield close to harvest.

Evaluation of phenology, agronomic and oenological quality in minority wine varieties in Madrid as a strategy for adaptation to climate change

The main phenological stages (budburst, flowering, veraison, and ripeness) and the fruit composition of 34 Spanish minority varieties were studied to determine their cultivation potential and help winegrowers adapt their production systems to climate change conditions. In total, 4 control cultivars, and 30 minority varieties from central Spain were studied during a period of 3 campaigns, in the ampelographic collection “El Encín”, in Alcalá de Henares, Madrid. Agronomic and oenological characteristics such as yield, and total soluble solids concentration have been monitored.