Fig. 3
From: Drought sensitivity of beech on a shallow chalk soil in northeastern Germany – a comparative study
Results of the bootstrapped correlation analysis between tree-growth indices and monthly and seasonal climate data for (a) Schlossberg and (b) Eldena. Bars indicate correlations for precipitation, lines for temperature (dotted line: mimimum temperature; solid line: average temperature; dashed line: maximum temperature). Significant correlations (P < 0.05) are indicated by dark gray bars (for precipitation) and filled circles (for temperature). Months and seasons are abbreviated with lower- and uppercase letters for the previous- and current-year growing season, respectively. WT winter (December (previous year) - February), SP spring (March - May), SM summer (June - August), AT autumn (September - November)