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Climate variability links to changes in Rioja wine (Spain).
Domingo F Rasilla1, Raquel Aransay2, Francisco Conde-Oria3
1Departamento de Geografía, Urbanismo y Ordenación del Territorio, Universidad de Cantabria, Santander, 39005, Spain.
International Journal of Biometeorology
|November 15, 2024
Summary
Climate change is altering Rioja wine production, affecting grape ripening, quality, and chemical composition. May
Area of Science:
- Viticulture and Oenology
- Climate Science
- Agricultural Science
Background:
- Regional climate changes impact agricultural output.
- Wine quality is sensitive to environmental factors.
- Spain's Rioja wine region faces evolving climatic conditions.
Purpose of the Study:
- To investigate the effects of regional climate change on Rioja wine production.
- To analyze changes in wine quality, chemical composition, and phenology.
- To identify key climatic drivers influencing harvest outcomes.
Main Methods:
- Analysis of DOCa Rioja and Marqués de Riscal winery data (1993-2017).
- Integration of meteorological and remote sensing data.
- Examination of monthly climate anomalies and low-frequency variability modes.
Main Results:
- Observed increase in wine alcohol content and pH.
- Detected decrease in wine acidity.
- Correlated phenological shifts include earlier grape ripening and reduced leaf canopy.
- May's climate anomalies significantly influence harvest outcomes, linked to the Eastern Atlantic (EA) mode.
Conclusions:
- Climate change is demonstrably altering Rioja wine characteristics.
- Phenological shifts and chemical composition changes are linked to climatic trends.
- Understanding climate variability, particularly in May, is crucial for predicting and managing wine production in Rioja.
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