DIGITALNA ARHIVA ŠUMARSKOG LISTA
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mineral concentrations with climate variables of the previous year. Correlation analysis based on residual tree ring width chronology and climate data reveals a positive correlation between tree-ring width and multiple temperature-related variables, mostly in May of the same year, and a negative correlation between tree-ring width and the range of minimum temperatures in March and June of the same year (Figure 6). DISCUSSION RASPRAVA The region of south-eastern Europe represents one of the most vulnerable hotspots with expected intensification of severity and duration of droughts and heat waves. As the effects of climate change on forests in Southern Europe will potentially be stronger and more rapid than in the rest of Europe, this area represents an ideal model for studying the impact of changing climatic conditions. This region is already faced with a high frequency of drought events; after 2000, significant droughts and heat-waves were observed in 2002, 2003, 2007-2008, 2011 and 2012 (EEA, 2012). Analyses of meteorological data (Gajić-Čapka et al., 2015) show that in Croatia a change in the temperature and precipitation regime is already present. In the decade 2001–2010 alone, four drought events occurred, and only 13 between 1961 and 2010 (Spinoni et al., 2013). In the future, Croatia is expected to be even hotter and drier (Cindrić et al., 2010, Mihajlović, 2006). Our results suggest that drought was to be expected on the research plot in years 2000, 2003 and 2007; 2003 was also |