We constructed raw tree-ring chronologies for the following growing sites: PA (Panška Reka near Ljubljana, 390 - 560 m. n.m.v.), MP (Menina planina, 1070 - 1340 m n.m.v.) and KAP (Western Karavanke, 950 m n.m.v.). These chronologies were made for spruce, and we also made 1 chronology for beech from KAF growing site. These chronologies were compared to previously made local chronologies of beech from MP and PA. Raw tree-ring chronology from PA for spruce is similar to beech chronology on the same growing site, and several other chronologies of beech from other remote growing sites. Chronology of spruce from MP is similar to chronologies of spruce from several other sites. Chronology of spruce from KAP is similar to a few chronologies of spruce from other sites. Chronology of beech from KAF is similar to mountain chronologies of beech from Italy and to spruce, beech and fir chronologies from Austria. On all the sites we also constructed spruce tree- ring width chronologies of early and late wood. Chronologies of early and late wood are very similar to raw tree-ring chronologies from the same growing sites and the same tree species. Dendroclimatological investigations were made using DENROCLIM 2002, ARSTAN residual, average monthly precipitation and temperatures data. We found out that various climatic factors and clime effects on different growing sites have different effect on tree-ring widths. Average temperatures in August have negative effect on tree-ring width of spruce from PA growing site. Precipitation and higher monthly temperatures in winter months have positive effect on tree-ring width of spruce from MP and KAP sites. On PA growing site, the precipitations in July have positive effect on tree-ring width of beech, while July temperatures have a negative effect. Temperatures in MP and KAF before growing season have a positive effect on tree-ring widths of beech.
|
