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…

Influence of climate change conditions (elevated CO2 and temperature) on the grape composition of five tempranillo (Vitis vinifera L.) Somatic variants

The current levels of greenhouse gas emissions are expecting to provoke a change on the environmental conditions which, among others, will include a rise of global mean surface temperature and an increment of atmospheric CO2 levels (IPCC, 2014), known as climate change. The response of grapevine (Vitis vinifera L.), one of the most important crops in Europe, from both a cultural and economic point of view, is not completely understood yet and the studies considering the interaction between factors are scarce. Besides, the potential variety of responses among somatic variants needs to be studied in order to be exploited in the avoidance of undesired traits linked to climate change (Carbonell‐Bejerano et al., 2015).

Dialing in grapevine water stress indicators to better reflect holistic stress responses

Current remote sensing strategies rely heavily on reflectance data and energy balance modelling using thermal imagery to estimate crop water use and stress. These approaches show great promise for driving precision management decisions, but still require work to better understand how detected changes relate to meaningful physiological changes. Under water stress, grapevines exhibit a range of responses involving both biological and physical changes within leaves and canopies.

Digitalization and valorization of the genotypic and phenotypic information retained within the FEM grapevine germplasm

The maintenance and valorization of genetic diversity is an undoubtable resource for the viticulture of the future, since the climate crisis is forcing us to think of new, more resilient varieties. For this reason, the grapevine germplasm of the Fondazione Edmund Mach has been continuously expanded in the last decade to a total of 3,120 accessions, whose trueness-to-type has been verified by means of the universal set of nine microsatellites. About two thirds are V. vinifera subsp. vinifera accessions, while the rest consists of naturalized and selected hybrids, V. vinifera subsp. sylvestris, and pure species. The genetic material has also been characterized over three consecutive years for ampelographic, vine development, and biotic stress response traits to be exploited for experimental purposes.

Loose clustered vignoles clones reduce late season fruit rots

‘Vignoles’ is an aromatic, white-fruited wine grape variety valued by growers and wineries in the Eastern United States. Vignoles is grown in diverse locations in New York, Missouri, Indiana, Ohio, Pennsylvania, Illinois, Nebraska and Michigan. Consumers recognize and value the variety for its special wine quality.

INTEGRAPE guidelines and tools: an effort of COST Action CA17111

INTEGRAPE was a European interdisciplinary network for “data integration to maximize the power of omics for grapevine improvement” (CA17111, https://integrape.eu/), funded by the European COST Association from September 2018 to 2022. This Action successfully developed guidelines and tools for data management and promoted the best practices in grapevine omics studies with a holistic future vision of: “Imagine having all data on grapevine accessible in a single place”.