Terroir 1996 banner
IVES 9 IVES Conference Series 9 On the relationship between climate and “terroir” at different spatial scales: the input of new methodological tools

On the relationship between climate and “terroir” at different spatial scales: the input of new methodological tools

Abstract

Un grand nombre de travaux ont été consacrés à la mise en éyidence et à la quantification de l’effet du climat sur la qualité de la production viticole. IIs ont permis de caractériser les grands types de production à une large échelle géographique, et d’en évaluer les variations interannuelles au niveau des millésimes. Lorsqu’on souhaite apprécier cependant les particularités au niveau des terroirs locaux, cette influence du climat devient plus délicate à apprécier. Il faut alors prendre en compte les variations spatiales du climat local à une échelle intermédiaire, ainsi que les caractéristiques microclimatiques au niveau de la parcelle viticole, qui sont fortement conditionnées par la situation topographique et le paysage environnant (brise-vent, par ex) ainsi que par l’interaction complexe avec le type de sol (par le biais de ses caractéristiques thermiques et hydriques) et avec les techniques culturales. A cette échelle fine, des moyens nouveaux d’approche méthodologique sont présentés:
– la mise en œuvre de modèles de simulations de la culture, incluant si possible le fonctionnement thermique et hydrique du système sol-plante-atmosphère,
– d’autre part, l’utilisation des outils de télédétection ( en particulier dans l’infrarouge thermique), pour caractériser l’environnement thermique aux différentes échelles concernées.
Les possibilités d’application de ces méthodes sont brièvement présentées, et la conclusion aborde les questions posées par les impacts d’un réchauffement climatique à prendre en compte pour les prochaines décennies.

A large number of studies have been devoted to the quantitative assessment of climate effects upon the quality of vineyard production. They have allowed to broadly characterize the main features of the most important wine production regions, as well as to evaluate their interannual variations (“millesime”). However, when it is needed to focus on smaller scales in order to take into account local features of so-called “terroirs”, the influence of climate is more difficult to assess. In an intermediate scale, spatial variations of local climate elements have to be considered. At the smaller scales (individual fields), the characteristics of microclimate have to be considered: they combine the possible influence of local topography and surrounding landscape (shelterbelts, for instance) and the resulting effects of the complex interaction with soil type (by the way of thermal and hydric properties) and cultural practices. At this fine scale, new methodological tools may be considered:
– the use of crop simulation models, if possible including the description of the thermal and hydric characteristics of the soil-plant-atmosphere system,
– the input of remote sensing ( especially thermal infrared bands) in order to characterize the thermal environment at different scales.
The possibilities and limits of these new tools are briefly presented and the questions raised by the possible impact of a global warming to be considered for the coming decades are presented in conclusion.

 

 

 

DOI:

Publication date: February 15, 2022

Issue: Terroir 2002 

Type: Article

Authors

B. SEGUIN

INRA-Centre d’Avignon
Site Agroparc, domaine St Paul 84914 Avignon cedex 9

Keywords

terroir, climat, qualité, modélisation, télédétection
“terroir”, climate, quality, modelling, remote sensing

Tags

IVES Conference Series | Terroir 2002

Citation

Related articles…

Application to the wine sector of European Convention on the landscapes

The landscape is defined by the European convention of the landscape (Florence, October 20, 2000) like part of the territory as perceived by the populations, whose character results from the action of natural and/or human factors and their interrelationships. This convention is based on the contribution cultural, ecological, environmental, social of the landscapes and aims at a reinforcement of the tools of protection and valorization in particular in the agricultural policies, of regional planning and town planning. Moreover, it encourages a step of identification and qualification of the landscapes and underlines the need for developing the sensitizing and the training of the actors concerned.

Biodiversity in the vineyard agroecosystem: exploring systemic approaches

Biodiversity conservation and restoration are essential for guarantee the provision of ecosystem services associated to vineyard agroecosystem such as climate regulation trough carbon sequestration and control of pests and diseases. Most of published research dealing with the complexity of the vineyard agroecosystems emphasizes the necessity of innovative approaches, including the integration of information at different temporal and spatial scales and development of systemic analysis based on modelling. A biodiversity survey was conducted in the Franciacorta wine-growing area (Lombardy, Italy), one of the most important Italian wine-growing regions for sparkling wine production, considering a portion of the territory of 112 ha. The area was divided into several Environmental Units (EUs), defined as a whole vineyard or portion of vineyard homogenous in terms of four agronomic characteristics: planting year, planting density, cultivar, and training system. In each EU a set of compartments was identified and characterised by specific variables. The compartments are meteorology, morphology (altitude, slope, aspect, row orientation, and solar irradiance), ecological infrastructures and management. The landscape surrounding EU was also characterised in terms of land-use in a buffer zone of 500 m. For each component a specific methodology was identified and applied. Different statistical approaches were used to evaluate the method to integrate the information related to different compartments within the EU and related to the buffer zone. These approaches were also preliminarily evaluated for their ability to describe the contribution of biodiversity and landscape components to ecosystem services. This methodological exploration provides useful indication for the development of a fully systemic approach to structural and functional biodiversity in vineyard agroecosystems, contributing to promote a multifunctional perspective for the all wine-growing sector.

Fruit set rate clonal variation explains yield differences at harvest in Malbec

Malbec is Argentina’s flagship variety, and it is internationally recognized for producing high-quality red wines. Fruit set rate is a major component in grapevine yield determination, and it is the outcome of multiple genetic and environmental interacting variables. Here, we characterized the reproductive performance of 25 Malbec clones grown under homogeneous conditions in a 23-years old experimental plot. We measured traits near flowering (like the number of flowers per inflorescence) and at harvest (including the number of berries per cluster and berry weight), during two consecutive seasons (2022 and 2023).

Natural magnetic levitation for the storage of wine bottles

Wine storage ensuring the quality and correct aging is one of the issues that wineries, wine traders and consumers encounter after wine bottling.

Local adaptation tools to ensure the viticultural sustainability in a changing climate

[lwp_divi_breadcrumbs home_text="IVES" use_before_icon="on" before_icon="||divi||400" module_id="publication-ariane" _builder_version="4.19.4" _module_preset="default" module_text_align="center" module_font_size="16px" text_orientation="center"...