National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Letokruhové analýzy mladého vrchovinného smrku ztepilého
Hanáček, Pavel
This bachelor thesis is focused on an tree rings analysis of young upland spruce. It was found out by the method of image analysis and it also include treatise how are tree rings influenced by climate. The samples were collected as stem discs from diameter breast height and samples were come from three different localities which are situated in Drahanská upland. These localities stand between 400 and 625 metres above sea level. Software WinDENDRO was used to measure tree rings widths. Then PAST 32 was used for crossdating, as well as these programs was used another called ASTAN and for result processing was nice to use the EXCEL 2013. The widths of tree rings are significantly correlated with precipitation and temperature of previous year in Rovná. In Habrůvka the widths of tree rings are significantly correlated with precipitation and temperature of current year. In the last one area in Habrůvka is seen that the width of tree rings are significantly positive correlated with precipitation of previous and current year, on the other hand temperature is not connected with any significant correlation.

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