terclim by ICS banner
IVES 9 IVES Conference Series 9 Local adaptation tools to ensure the viticultural sustainability in a changing climate

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

Abstract

Over the next century, the projected changes in regional climates are expected to have important consequences on wine production. They vary from short-term impacts on wine quality and style, to long-term issues such as varietal suitability and the economic sustainability of wine growing regions. To contextualize the possible temporal and spatial climate change impacts, this study first assessed the past and expected (RCP 4.5 and RCP 8.5) viticultural potential of 24 vineyards sites representative of the middle Loire Valley, namely sites with a weakly, moderately and strongly weathered bedrock having various water holding capacities. Simple terrain tools were then applied to illustrate the likely trends in possible wine quality and style for these 24 sites. While wine quality is shaped by natural features as soil properties, winegrowers’ perennial and annual decision-making inevitably play also an important role. Using a water balance model available for the 24 sites, the effect of different soil management practices on vine performance as well as wine quality and style were evaluated. To validate this applied approach using terrain tools, the final part of the study looked at support precision tools, namely vegetation indices derived from satellite imagery. These indices allow to monitor and estimate the vine water status of the different sites and therefore the delineation of viticultural zones with similar features. As a global changing climate denotes an increase in uncertainty, both in time and over space, these local adaptation tools allow winegrowers to better understand the past and expected viticultural potentialities of their vineyards. These tools should also enhance the resilience of winegrowers as they adopt no-regret strategies that are place specific.

DOI:

Publication date: May 31, 2022

Issue: Terclim 2022

Type: Poster

Authors

Etienne Neethling1, Cécile Coulon-Leroy1, Etienne Goulet2,3 and Francois Gallet4

1ESA, USC 1422 INRA-GRAPPE, Ecole Supérieure d’Agricultures, Angers, France
2IFV, Institut Français de la Vigne et du Vin, Beaucouzé, France
3InterLoire, Interprofessions des Vins du Val de Loire, Tours, France
4Scanopy, Quincy, France

Contact the author

Keywords

climate change, adaptation tools, middle Loire Valley, conceptual model, wine identity

Tags

IVES Conference Series | Terclim 2022

Citation

Related articles…

New food trend ahead? Highlighting the nutritional benefits of grapevine leaves

The wine industry produces an enormous amount of waste every year. A wider inclusion of disregarded by-products in the human diet or its use as a source of bioactive compounds is a good strategy for reducing waste. It will not only introduce an added value to a waste product but also come upon the European Union and United Nations’ demands towards more sustainable agricultural approaches and circular economy.

Read More

Early defoliation positively enhances bioactive composition of berries with no effect on cuticle characteristics

Leaf removal in the fruit-zone has been employed to improve cluster light exposure and ventilation and therefore increase metabolite accumulation and reduce botrytis incidence in berries. When applied before flowering (early defoliation – ED), it can also decrease cluster compactness and regulate yield in high-yielding varieties. This study aimed to evaluate the impact of ED on the physiology and metabolism of Aragonez (syn. Tempranillo) berries along the ripening period. The experiment was set up in 2013 at a commercial vineyard located in the Lisbon winegrowing region.

Read More

Grapevine genotypes with potential for reducing the carbon footprint in the atmosphere and cultivation in a biological system

The concentration of CO2 in the atmosphere is increasing from year to year. Taking into account the calculations of the greenhouse gas inventory, it was found that approximately 70% of CO2 in the atmosphere is absorbed by vegetation (forests, agricultural land, etc.).

Read More

Valutazione comparativa di cloni di Pinot nero per la produzione di vini base spumante in alcuni ambienti del Piemonte

Un vasto programma si riferisce alla verifica di 28 selezioni clonali di Pinot nero atte a vini base spumante. Gli impianti sono stati realizzati in diversi ambienti delle Langhe e del Monferrato nel periodo 1992-1996, in 57 vigneti diversi e su una superficie complessiva di circa 50 Ha.

Read More

GRAPE SPIRITS FOR PORT WINE PRODUCTION: SCREENING THEIR AROMA PROFILE

Port is a fortified wine, produced from grapes grown in the demarcated Douro region. The fortification process consists in the addition of a grape spirit (77% v/v) to the fermenting juice for fermentation interruption, resulting in remaining residual sugars in the wine and increased alcohol content (19-22%). The approval of grape spirits follows the Appellation (D.O. Port wine) rules1 and it is currently carried out based on analytical control and on sensory evaluation done by the public Institute that upholds the control of the quality of Douro Appellation wines. However, the producers of Port wines would like to have more information about quality markers of grape spirits.

Read More