The vineyards of Conegliano Valdobbiadene have long benefited from a unique combination of climate, landscape, and terroir that makes them ideal for cultivating Glera, the grape behind Prosecco Superiore DOCG.
Today, however, changing weather patterns are presenting new challenges that require innovative responses from winegrowers.
A comprehensive study on climate adaptation in the denomination has outlined a series of practical measures designed to safeguard vineyard productivity and wine quality as temperatures continue to rise throughout the 21st century.
A Region Better Positioned Than Many
Unlike some wine regions already operating at the edge of viticultural suitability, Conegliano Valdobbiadene still enjoys climatic conditions that remain favorable for Glera cultivation. Historical evidence suggests the grape variety found its ideal environment in these hills centuries ago, giving the region a degree of natural resilience.
Nevertheless, climate change is introducing new risks beyond temperature increases alone. Water shortages, intense rainfall, and extreme weather events such as hailstorms are becoming more common and require targeted adaptation measures.
Choosing Better Rootstocks for a Changing Climate
One of the most promising recommendations involves the selection of more drought-resistant rootstocks. Researchers highlight the benefits of modern rootstocks such as the M4 series developed by the University of Milan.
These rootstocks naturally encourage deeper root development, allowing vines to access moisture reserves located far below the soil surface. Deep-rooted vines are better equipped to withstand prolonged dry periods and maintain consistent growth even when surface soils become dry.
To further encourage deep rooting, vineyard managers are advised to minimize unnecessary irrigation and adopt cultivation practices that stimulate natural root exploration.
Smart Canopy Management Preserves Quality
As summer temperatures continue to rise, protecting grape clusters from excessive sunlight becomes increasingly important. The study recommends avoiding excessive leaf removal and instead allowing vines to maintain a protective canopy around the fruit.
This approach helps create a natural barrier against heat stress and sunburn while preserving acidity and aromatic freshness. By reducing direct exposure to intense solar radiation, growers can better maintain the elegant style and balanced profile expected from premium Prosecco Superiore DOCG wines.
Anti-Hail Nets Offer Multiple Benefits
Extreme weather events are among the most visible consequences of climate change. Hailstorms can cause devastating crop losses within minutes, making vineyard protection systems increasingly valuable.
Researchers recommend installing vertical anti-hail nets specifically suited to the steep hillsides of Conegliano Valdobbiadene. While their primary purpose is to protect grapes from hail damage, these structures provide an additional benefit by slightly reducing solar radiation reaching the fruit.
Dark-colored nets act as a form of shading, lowering berry temperatures during heatwaves and helping preserve acidity and aromatic complexity. This dual functionality makes anti-hail nets an effective tool for climate adaptation.
Research Supporting Long-Term Sustainability
The study emphasizes that adaptation is not about abandoning tradition but strengthening it. By combining scientific research with practical vineyard management, producers can continue to preserve the distinctive identity of Conegliano Valdobbiadene Prosecco Superiore DOCG despite changing environmental conditions.
Investments in soil health, water management, vineyard protection, and rootstock innovation demonstrate a long-term commitment to safeguarding both wine quality and the cultural landscape that defines this celebrated wine region.
As climate pressures intensify worldwide, the lessons emerging from Conegliano Valdobbiadene may provide a valuable model for wine regions seeking to balance sustainability, resilience, and excellence.
Source: VinoVistara