Increasing Risk of Spring Frost Occurrence during the Cherry Tree Flowering in Times of Climate Change

Climate change affects the agroecological conditions and persistence of cherry tree flowering. Detailed evaluation minimum air temperature occurrence synoptic events during spring frosts within flowering in Czech Republic (Central Europe) is missing. The main objective this study was to evaluate above-mentioned variables different parts country from 1924 2012. Our question how frequency frost days changed A trend analysis conducted with Mann-Kendall test. onset beginning end shifted an earlier date per whole examined period (up −13.9 −8.1 days) extended 4.1 days). shifts were more pronounced at higher elevations. During flowering, number negative lowland station (−0.3 day) positive highland (+1.2 day). At all stations, “Ap3” event (anticyclone) on highest risk (Tmin 2 m < −1.1 °C) prevailed. frost-day indicate that blossoms are endangered