The aim of our study was to use an advanced methodology to create a geo-referenced model database describing production sites in the Eger wine region of Hungary. The database includes geo-referenced information of geomorphology (slope, exposition, and elevation), lithology, soil type, depth of water table and pH of soil water.

With global warming, vitiviniculture has been spreading towards the poles. It also gains the tropics, probably because of the growth of economical powers such as Brazil and India and also thanks to significant agronomic progresses made since the middle of the 20th century.

Great variations in climatic conditions exist within wine growing areas, as a result of geomorphology, land cover, proximity of main water bodies and urban areas. This means that climate change (CC) will not have the same impact on various locations within a wine growing area.

In warm climatic conditions, the red sugar concentrations of red varieties reach more than sufficient levels for obtaining high quality wines, but this is often not the case with colour. This relative stability of sugars compared to the sensitivity of anthocyanins to temperature is due to the different temperature ranges for optimal activity of the enzymes producing sugars (18 to 33º C) and pigments (17 to 26º C). Temperatures above 30º C can inhibit the formation of anthocyanins. This trend toward increasing temperature due to climate warming, emphasizes the decoupling between anthocyanins and sugars and produce very alcoholic wines.

In Spain, Grenache is the second most planted red wine grape variety. In warm years with high temperatures during ripening grape composition could be modified, thus phenolic synthesis damaged. In order to evaluate the behavior of Grenache, two vineyards were chosen in Tarragona (T) and Priorat (P) AOC.

Frost occurs in vineyards when temperatures fall below 0 degrees Celsius and ice nucleating bacteria are present to catalyze the formation of ice crystals on green tissues. It has been shown in the laboratory that in the absence of these bacteria, plant tissue can supercool to as much as 6 degrees C below freezing (0 degrees C). There are at least 6 genera of bacteria that are known to nucleate ice, but Pseudomonas syringae is most commonly associated with frost events in studies on other crops.

Grape and wine production, an important economic activity in Portugal, is strongly affected by weather and climate and thus highly vulnerable to climate change. Increased risk of drought, especially in the Mediterranean region, northward shift of isotherms for killing winter frost and prolonged warmer growing seasons are expected to continue throughout the twenty-first century and are of relevance for viticulture.

Viticultural landscape management is a challenge as the issue is to manage the landscape ” from a perspective of sustainable development, to ensure the regular upkeep of a landscape, so as to guide and harmonize changes which are brought about by social, economic and environmental processes” (European Landscape Convention, 2000).

In the framework of a French network of researchers working on the phenology of forest trees, fruit trees and grapevine (PERPHECLIM ACCAF project), methods of observations and sampling strategies were discussed and compared. The objective was a harmonisation of data acquisition strategies for grapevine phenology.

The magnitude and distribution of solar radiation have an important impact in yield and vintage composition. In this study we analyzed solar radiation levels in the uruguayan coast of the Río de la Plata in relation with the viticultural climate indices. Its relationship with other meteorological variables was also investigated.

The systemic analysis of the performance of a vineyard at the scale of a wine-making exploitation is made possible by the use of sensors stemming from so called precision techniques, which allow precise and exhaustive geo-located measures. The aim of our study is to exploit this kind of data and evaluate their information using geographical information systems (GIS) and crossing different layers representing characteristic and independent variables of the production system.

While evapotranspiration (ET) and crop coefficient (Kc) information for wine grapes grown on flat terrain are widely published, there is little information available on ET and Kc for vines grown on slopes and even less on the impact of water stress on vine ET. Therefore, our objective was to measure ET and stem water potential (SWP) in pilot studies conducted on North and South facing sloped vineyards to evaluate differences in vine water use to improve irrigation management on the basis of vineyard topography.

Vineyard landscapes are issued from climate, agronomic and sociological factors. Since the post-war years, the wine-growing crisis, the changes in consumer’s habits and the mechanizing have deeply affected landscape architecture and composition of vineyards in South of France.

High-resolution weather forecasting and phenological models can be combined to better understand spatial and temporal variations in the phenology of grapevine varieties. The objective of this study was to compare predictions of the time of flowering of Sauvignon blanc in the Marlborough region, New Zealand, using the Grapevine Flowering Véraison (GFV) model using temperature input data from: 1) traditional Automated Weather Stations (AWS); and 2) the Weather Research and Forecasting (WRF) model.

Tasmania, located in southern Australia, has a very cool and variable climate with vineyards located in areas with mean January temperature (MJT) ranging from 14.5 to 16.5 °C and annual rainfall ranging between 450 mm and 1050 mm. Climate-induced variability in yield, for key varieties grown in Tasmania can vary between 3.5 and 10.0 tonnes per hectare.

Within consideration of climate change, it is essential to understand the influence of year to year climate variability and its impact on quantity and composition of grapes, in order to take appropriate decisions for a sustainable viticulture. Climate variability at a regional scale was analyzed for the period 1972 -2014, while its influence on grape yield and composition was studied during the period 1993 – 2014. Measurements were made on 30 plants selected at random in a Tannat vineyard trained on a VSP trellis system.