Finding an imprint of solar and climatic cycles in tree rings of European beech (Fagus sylvatica L.)

The present study is focused on European beech (Fagus sylvatica L.) growth in eastern Bohemia the Broumovské stěny National Nature Reserve, Czech Republic. objective of this research was to develop an evaluation radial relation solar activity (number sunspots), air temperature growing season, annual precipitation and pollution (SO2 depositions). highest positive significant correlation coefficient found between number sunspots, followed by with season. showed a negative SO2 depositions. indicates that sunspots have lower than seasonal during disaster 21st cycle. Radial growth, total season were processed spectral analysis for periodic cycles. 7.5- 11-year cycles observed sunspot Precipitation indicate higher frequency at 3.7-year long-term periodicity influenced both fluctuations growing-season temperature.