Terroir 1996 banner
IVES 9 IVES Conference Series 9 Zoning, environment, and landscape: historic and perspective

Zoning, environment, and landscape: historic and perspective

Abstract

[English version below]

Dans une approche globale, nous proposons la définition suivante du zonage : “représentation cartographique associée à une sectorisation du territoire en zones unitaires homogènes à partir de facteurs discriminants établis sur la base d’indicateurs quantifiables et d’avis d’experts”. La première application de cette méthode a porté sur la caractérisation du terroir en liaison avec les aspects qualitatifs des vins. Il est également possible d’envisager d’appliquer cette démarche dans les stratégies environnementales et paysagères liées aux approches territoriales et aux pratiques viticoles. Cette méthode peut servir de base dans la mise en œuvre des outils financiers associés aux mesures environnementales (CTE, aides spécifiques). Le zonage est déjà utilisé sur le plan législatif vis-à-vis de l’utilisation des amendements azotés (zones vulnérables) et de la protection des espèces (biotope, natura 2000). Dans le cadre d’une application spécifique à la viticulture associé à la multifonctionnalité du terroir, plusieurs axes peuvent être envisagés:
– Vulnérabilité des sols au transfert de polluants,
– Cartes d’érosion et d’aptitudes à l’enherbement
– Caractérisation microbiologique des sols,
– Protection des paysages,
– Application sectorisée des modèles de prévision des maladies.

In a global approach, we propose the following definition as regards zoning: “cartographic representation associated to a division into sectors of the territory in homogeneous unitarian zones from discriminants factors established on the basis of quantifiable indicators and of experts opinions”. The first application of this method concerned the soil characterization in contact with the qualitative wine aspects. It is also possible to intend to apply this step in the environmental and landscaped strategies bound to the territorial approaches and to the wine practices. This method can serve as base in the application of the financial tools associated to the environmental measures (CTE, specific helps). Zoning is already used on the legislative plan towards the nitrogenous amendments use (vulnerable zones) and the sorts protection (biotope, NATURA 2000). Within the framework of a specific vine growing application associated to the soil multifunctionality, several axes can be envisaged:
– Ground vulnerabilities in the pollutant transfers,
– Cards of erosion and capacities in the enherbement,
– Microbiologie characterization of grounds,
– Landscape protections,
– Sectorised application of the disease forecast models.

DOI:

Publication date: February 15, 2022

Issue: Terroir 2002

Type: Article

Authors

Joël ROCHARD and Nadège FOURNY

ITV France – Pôle environnement – 17, rue Jean Chandon Moët, B.P.20046, 51202 Epernay cedex

Contact the author

Tags

IVES Conference Series | Terroir 2002

Citation

Related articles…

Effect of partial net shading on the temperature and radiation in the grapevine canopy, consequences on the grape quality of cv. Gros Manseng in PDO Pacherenc-du-vic-Bilh

As elsewhere, southwestern France vineyards face more recurrent summer heat waves these last years. Among the possibilities of adaptation to this climate changing parameter, the use of net shading is a technique that allow for limiting canopy exposure to radiations. In this trial, we tested net shading installed on one face of the canopy, on a north-south row-oriented plot of cv. Gros Manseng trained on VSP system in the PDO Pacherenc-du-Vic-Bilh. The purpose was to characterize the effects on the ambient canopy temperatures and radiations during the season and to observe the consequences on the composition of grapes and wines. Two sorts of net were used with two levels of obstruction (50% and 75%) of the photosynthesis active radiation (PAR). They have been installed on the west side of the canopy and compared to a netless control. Temperature and PAR sensors registered hourly data during the season. On specific summer day (hot and sunny) manual measurements took also place on bunches (temperature) and in different spots of the canopy (PAR). The results showed that, on clear days, the radiation is lowered by the shade nets respecting the supplier criteria. The effects on the ambient canopy temperature were inconstant on this plot when we observed the data from the global period of shading between fruit set and harvest. However, during hot days (>30°C), the temperature in the canopy was reduced during afternoon and the temperature of the bunch surface was reduced as well comparing to the control. A decrease of the maturity parameters of the berries, sugar and acidity, was also observed. Concerning the wine aromatic potential, no differences clearly appeared.

Influence of weather and climatic conditions on the viticultural production in Croatia

The research includes an analysis of the impact of weather conditions on phenological development of the vine and grape quality, through monitoring of four experimental cultivars (Chardonnay, Graševina, Merlot and Plavac mali) over two production years. In each experimental vineyard, which were evenly distributed throughout the regions of Slavonia and The Croatian Danube, Croatian Uplands,

A predictive model of spatial Eca variability in the vineyard to support the monitoring of plant status

[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"...

Effects of graft quality on growth and grapevine-water relations

Climate change is challenging viticulture worldwide compromising its sustainability due to warmer temperatures and the increased frequency of extreme events. Grafting Vitis vinifera L.

Evaluation of climate change impacts at the Portuguese Dão terroir over the last decades: observed effects on bioclimatic indices and grapevine phenology

In the last decades the growers of the Portuguese Dão winegrowing region (center of Portugal) are experiencing changes in climate that are influencing either grape phenology berry health and ripening. Aiming to study the relationships between climate indices (CI), seasonal weather and grapevine phenology, in this work long-term climate and phenological data collected at the experimental vineyard of the Portuguese Dão research centre between 1958 and 2019 (61 years) for the red variety Touriga Nacional, was analyzed. The trends over time for the classical temperature-based indices (Growing Season Temperature – GST -, Growing Degree Days – GDD, Huglin Index – HI and Cool Night Index – CI) presented a significantly positive slope while the Dryness Index (DI) showed a negative trend over the last 61 years. Regarding grapevine phenology, an average advance of 4.5 days per decade in the harvest day was observed throughout the last 61 years. Consequently, the weather conditions during the ripening period have changed, showing an increasing trend over time in the average temperature (higher magnitude in the maximum than in the minimum temperature) and a decrease in the accumulated rainfall. A regression analysis showed that ~50% of harvest date variability over years was explained by the temperature-based indices variability. These observed effects of climate change on bioclimatic indices and corresponding anticipation of harvest date can still be considered advantageous for the Dão terroir as it allows to achieve an optimal berry ripening before the common equinox rains and, therefore, avoid the potential negative impacts of the rainfall on berry health and composition.