ГОДОВЫЕ КОЛЬЦА БУКА (FAGUS SYLVATICA) И СОЛНЕЧНО-ОБУСЛОВЛЕННЫЕ КОЛЛЕБАНИЯ КЛИМАТА ЦЕНТРАЛЬНОГО И ЗАПАДНОГО БАЛКАНА В XVIII-XXI ВВ
The time series of annual beech tree rings (Fagus Sylvatica) in regions of West and Central Balkan Mountain Belt (i.e. Stara planina, Bulgaria) and detecting of solar modulated climate cycles is a main subject of this paper For a better study of solar activity influence over beech growing during the deep Dalton solar minimum (1793/98-1833 AD) the 7 oldest founded samples in age of > 200 years are used. On the base of two different methods (wavelet analysis and T-R periodogramm algorithm statistically reliable cycles by duration of ~ 2022, 40, 60-70, 110-120 and 200-220 years are detected. Statistically significant relationships between the beech growth and the rains and temperatures on the other side are proved for the most of samples.