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Open AccessFeature PaperArticle

What Is the Impact of Heatwaves on European Viticulture? A Modelling Assessment

1
Centre for the Research and Technology of Agro-Environmental and Biological Sciences, CITAB, Universidade de Trás-os-Montes e Alto Douro, UTAD, 5000-801 Vila Real, Portugal
2
Luxembourg Institute of Science and Technology (LIST), Environmental Research and Innovation (ERIN) Department, 41, rue du Brill, L-4422 Belvaux, Luxembourg
3
Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Piazzale delle Cascine 18, 50144 Florence, Italy
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2020, 10(9), 3030; https://doi.org/10.3390/app10093030
Received: 7 April 2020 / Revised: 22 April 2020 / Accepted: 24 April 2020 / Published: 26 April 2020
Extreme heat events or heatwaves can be particularly harmful to grapevines, posing a major challenge to winegrowers in Europe. The present study is focused on the application of the crop model STICS to assess the potential impacts of heatwaves over some of the most renowned winemaking regions in Europe. For this purpose, STICS was applied to grapevines, using high-resolution weather, soil and terrain datasets from 1986 to 2015. To assess the impact of heatwaves, the weather dataset was artificially modified, generating periods with anomalously high temperatures (+5 °C), at specific onset dates and with specific episode durations (from five to nine days). The model was then run with this modified weather dataset, and the results were compared to the original unmodified runs. The results show that heatwaves can have a very strong impact on grapevine yields. However, these impacts strongly depend on the onset dates and duration of the heatwaves. The highest negative impacts may result in a decrease in the yield by up to −35% in some regions. The results show that regions with a peak vulnerability on 1 August will be more negatively impacted than other regions. Furthermore, the geographical representation of yield reduction hints at a latitudinal gradient in the heatwave impact, indicating stronger reductions in the cooler regions of Central Europe than in the warmer regions of Southern Europe. Despite some uncertainties inherent to the current modelling assessment, the present study highlights the negative impacts of heatwaves on viticultural yields in Europe, which is critical information for stakeholders within the winemaking sector for planning suitable adaptation measures. View Full-Text
Keywords: heatwaves; viticulture; vineyards; Europe; climate change; yield; pinot noir heatwaves; viticulture; vineyards; Europe; climate change; yield; pinot noir
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MDPI and ACS Style

Fraga, H.; Molitor, D.; Leolini, L.; Santos, J.A. What Is the Impact of Heatwaves on European Viticulture? A Modelling Assessment. Appl. Sci. 2020, 10, 3030. https://doi.org/10.3390/app10093030

AMA Style

Fraga H, Molitor D, Leolini L, Santos JA. What Is the Impact of Heatwaves on European Viticulture? A Modelling Assessment. Applied Sciences. 2020; 10(9):3030. https://doi.org/10.3390/app10093030

Chicago/Turabian Style

Fraga, Helder; Molitor, Daniel; Leolini, Luisa; Santos, João A. 2020. "What Is the Impact of Heatwaves on European Viticulture? A Modelling Assessment" Appl. Sci. 10, no. 9: 3030. https://doi.org/10.3390/app10093030

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