CR prepress abstract  -  doi: 10.3354/cr01468

Climatic shifts in the Emilia-Romagna’s (Italy) high quality wine production areas during 1961–2015

Nemanja Teslić*, Mirjam Vujadinović, Mirjana Ruml, Gabriele Antolini, Ana Vuković, Giuseppina P. Parpinello, Arianna Ricci, Andrea Versari


ABSTRACT: In the presented work, daily observations of minimum and maximum temperatures and precipitation - spatially interpolated in the high-resolution grid (5 × 5 km) - were used to detect climate shifts in the viticulture appellation areas of the Emilia-Romagna (ER) region, in the periods 1961–1990 and 1986–2015. The growing season (April–October) minimum, mean and maximum temperatures significantly increased in the second period comparing to the first period over the majority of ER. Precipitation did not differ significantly, with an exception of certain small northeastern areas of the ER. Detected changes affected the ER viticulture environment in several ways: (i) increased number of days with maximum temperature exceeding 30°C, which can induce plant stress; (ii) changed climatologically defined growing season starting and ending dates, the first autumn frost and the last spring frost dates, and length of the frost-free period; (iii) shift of the most vineyard areas from the “Region 2/Region 3” to the “Region 3/Region 4” (according to Winker classification); (iv) shift of the majority grape producing zones from the “temperate/warm temperate” to the “warm temperate/warm” (according to Huglin classification); (v) decreased soil water availability necessary for grapevine development.