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Zhodnocení vlivu podmínek stanoviště a období těžby na vlastnoti dřeva smrku
Zlámal, Jan
Diploma thesis, Mendel University in Brno, 2019 This thesis deals with some factors influencing the physical and mechanical properties of Norway spruce wood (Picea abies L. (H. Karst)), mainly the effect of felling time and wood processing on physical and mechanical properties. This thesis analyzes data from standing trees, lying logs and worked beams. The beams were processed in four different ways, by hewing, standard cutting, hewing from dipped logs, hewing and subsequent dipping. Felling of trees for the production of these beams was performed in winter, spring and summer. Most of the felling operations were carried out with respect to the moon phase, always the first and second quarters of the month phase. The results of experimental measurements are arranged and statistically evaluated. Also the thesis summarizes the findings from literature of suitable spruce habitats for the selection of quality wood raw material.
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