Terroir 1996 banner
IVES 9 IVES Conference Series 9 From local classification to regional zoning-the use of a geographic information system (GIS) in Franconia / Germany. Part 1: specific GIS applications in viticulture

From local classification to regional zoning-the use of a geographic information system (GIS) in Franconia / Germany. Part 1: specific GIS applications in viticulture

Abstract

[English version below]

En vue d’une production économique de qualités des raisins optimales une connaissance des informations les plus différentes est importante. Les nouvelles technologies, telles qu’un SIG permettent de réunir les informations sur le terrain, la nature du sol, le danger d’érosion, le climat, la végétation, l’hydrographie, l’apparition de nuisible et de maladies, etc. Sur la base de cartes topographiques un SIG permet une vaste analyse, une appréciation des rapports complexes ainsi qu’une représentation cartographique. Sur la base de modélisations en trois dimensions du terrain avec le SIG, les ensembles de données saisies ainsi que leur classification au niveau local peuvent être utilisés dans la production de zonages régionaux. Les données du SIG délivrent des informations liées à la protection du sol et de l’eau, la classification climatique, la protection de la vigne, la possibilité d’enherbement, la planification d’irrigation, etc. Les aspects principaux de l’utilisation du SIG en Franconie sont l’enregistrement et l’analyse des données locales, comme les paramètres du sol, le risque d’érosion et les conditions climatique, dans le but d’élaborer des classifications locales des zones à appellation communale et des petits terroirs. A l’aide du SIG, ces classifications locales permettent la création de zonages régionaux, comme par exemple la formation de cartes régionales du risque d’érosion ou la définition de zones de climat local. La modélisation du terrain en trois dimensions permet de déterminer les couloirs d’écoulement de l’air froid et la modélisation des régions soumises au risque de gel, comme les creux et les vallées. Pour cette raison, le SIG en viticulture est un excellent instrument de travail dans la recherche et la consultation viticole ainsi que pour les producteurs de raisins et des domaines viticoles afin d’enregistrer, d’analyser et d’évaluer les influences que des zones régionales déterminées ont à subir. Ainsi le SIG montre aux vignerons leurs surfaces viticoles sous une perspective permettant de mieux analyser le milieu.

For an economically production of optimal grape quality, the knowledge of different types of information is important. New computer software such as a GIS enables the compilation of information on topography, soil, erosion risk, climate, vegetation, infrastructure, and the occurrences of pests and diseases. Based on digital topographie maps, a GIS allows a synoptical analysis of complex correlations and their representation on maps. Based on a three-dimensional terrain modelling with the GIS, recorded data sets and their local classification can be used to establish a regional zoning of viticultural relevant factors as e.g. favourable climatic zones combined with best soil conditions. The GIS data deliver information for fields like soil and water conservation, climatic classification, vine protection, selection of suitable grape varieties and rootstocks, green cover capacity, irrigation planning, yield and quality recording, etc. Main objectives of the GIS application in Franconia are the recording and analysis of local data sets as soil parameters, erosion risk and climatic conditions in vineyard sites. With help of the GIS, these local information enables the creation of a regional zoning of the respective data set, e.g. the generation of regional erosion risk maps or the definition of regional climatic zones. The 3D-terrain modelling allows the determination of flow-off paths of cold air and ‘mapping’ of frost endangered areas like depressions and valleys. Therefore, the viticultural GIS is an excellent aid to researchers and consultants, grape producers and wine growing estates for recording, analysing and assessing viticultural relevant factors in vineyards. This enables a new perspective of vineyards for a better planning of new plantings and also for an improvement of the vineyard management.

DOI:

Publication date: February 15, 2022

Issue: Terroir 2002

Type: Article

Authors

S. KÖNIGER, A. SCHWAB and S. MICHEL

Bayerische Landesanstalt für Weinbau und Gartenbau, Abt. Weinbau· und Rebenzüchtung, Herrnstr. 8, D-97209 Veitshochheim, Germany

Contact the author

Keywords

regional zoning, GIS, climate, soil, vineyard management
zonage régional, SIG, climat, sol, management du vignobles

Tags

IVES Conference Series | Terroir 2002

Citation

Related articles…

The key role of vineyard parcel in modifying flavor compounds of Cabernet Sauvignon grapes

To produce premium wines in a specific region is the goal of local oenologists. This study aimed to investigate the influence of soil properties on the flavoromics of Cabernet Sauvignon grapes to provide a better insight into single-vineyard wines. Six commercial Cabernet Sauvignon vineyards were selected in the Manas region to collect berries at three harvest ripeness in three seasons (2019–2021). The six vineyards had little difference in mesoclimate conditions while varying greatly in soil composition.

Modulation of berry composition by different vineyard management practices

High concentration of sugars in grapes and alcohol in wines is one of the consequences of climate change on viticulture production in several wine-growing regions. In order to investigate the possibilities of adaptation of vineyard management practices aimed to reduce the accumulation of sugar during the maturation phase without reducing the accumulation of anthocyanins in grapes, a study with severe shoot trimming, shoot thinning, cluster thinning and date of harvest was conducted on Merlot variety in Istria region (Croatia), under the Mediterranean climate. Four factors which may affect grape maturation and its composition at harvest were investigated in a two-years experiment; severe shoot trimming applied at veraison when >80% of berries changed colour (in comparison to untreated control), shoot thinning (0 and 30%), cluster thinning (0 and 30%), and the date of harvest (early and standard harvest dates). Shoot thinning had no significant impact on berry composition, despite the obtained reduction in yield per vine. Lower Brix in grapes were obtained with earlier harvest date and if no cluster thinning was applied, although at the same time a reduction in the concentration of anthocyanins in berries was observed in these treatments. On the other hand, if severe shoot trimming was applied when >80% of berries changed colour, a reduction of Brix was obtained without a negative impact on berry anthocyanins concentration. We conclude that in cases when undesirably high sugar concentrations at harvest are expected, severe shoot trimming at 80% veraison may effectively be used in order to obtain moderate sugar concentration in berries together with the adequate phenolic composition.

Typicality of Rioja wines: identification of sensory profiles for the three subregions of DOCa Rioja

Within the DOCa Rioja three main production areas are differentiated: Rioja Alta (RA), Rioja Alavesa (RAv) and Rioja Oriental (RO). They are three diverse territories with particular characteristics that are claimed to give rise to differentiated profiles. The present work aims at evaluating the sensory diversity of young commercial red wines in these three subregions. Therefore 30 young red wines (mainly Tempranillo and vintage 2021), ten from each subregion, were sensory described following a non-verbal free sorting task and a verbal free comment task by 32 well-established Rioja winemakers.

Vine responses to two irrigation systems in the region of Vinhos Verdes

In this work we try to know the influence of two irrigation systems (Drip and Micro – jet ) with the same levels of water applied in an experimental vineyard in the region of Felgueiras.

How do we describe wine imagery? Expertise shapes language usage and multimodal imagery for wine

The acquisition of wine expertise is a multi-faceted and multisensory process with implications for sensory perception, attention, memory, and language production. With the prevalence of the predictive model of brain functioning, one area of burgeoning research interest involves wine mental imagery, since the brain relies on imagined experiences to build predictions for the future. Recent evidence has shown that, for instance, those with higher imagery vividness are more susceptible to wine advertising. However, little is known about the association between mental imagery and other associated cognitive processes, such as the ability to produce words that describe such imagery.