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ŠUMARSKI LIST 7-8/2004 str. 45     <-- 45 -->        PDF

M l´rka: DI-HI .[INA KORI- OBIČNI- BUKVI-(Fu^us silv.ilica [..) V S.IIC1NAMA BJELOVARSKI: ... Šumarski list hr. 7 8. C XXVIII 120(14). 391-403

the diameter of the whole sample were equalized by the following linear
equation: y = 0.0134 x+ 0.4123

The research confirmed the regularities defined in previous research.
Furthermore, the absolute values of bark thickness in relation to diameter
and average percentages of bark in technical roundwood are smaller then
established in the previous research. That confirms the thesis that poor natural
settings determine greater bark thickness, having in mind the differences
in height above sea-level between the objects of this and the previous

We established percentages of bark in volume of technical roundwood of

5.1 % in preparatory felling, 4.8 % in seeding felling and 4.7 % in final
felling. For the sample of 693 sample trees in seeding felling the average percentage
of bark in technical roundwood, calculated according to wood bulk

with bark was 4.8 %.

The results of the research were compared to the results of the previous
research carried out in NPSO Velika (Krpan, 1986), and to usance applied
in beech forest wood products, and significant differences were established.

Key words: bark thickness, common beech, beech felling, Bjelovarska