In the permanent study area Volčji štant on Borovška gora, the development and growth of a mixed silver fir-European beech-Norway spruce selection forest was studied. First, the second consecutive measurements of trees was conducted on 45 5-acre cicular samplings plots. Then, basic parameters of selection forest, trees and stand growth, were analyzed, and the intensity and structure of selection cutting performed in 2007 and 2022 was compared. Despite the constant changes in forest ecosystem and the 15-year absence of selection cut, the selection structure of analysed stands was still preserved in 2022, but compared to 2007 it changed slightly. The stand volume increased for about 10 % during this period, the share of large-sized trees (dbh>50 cm) increased. The highest share in stand volume was obtained for fir (67 %) and was followed by beech (17 %), spruce (15 %) and other tree species (1 %). In the period 2007-2022 the share of fir and spruce increased by 28 % and 20 %, respectively, while the share of beech decreased by 31 %. Despite the balanced diameter structure of selection forest, the recruitment of trees was low and close to the critical threshold value. The average diameter increment of trees was 0,31 cm/year, while the averagevvolume increment was 0,04 m3/year, higher increments were observed for conifers. In 2007 selection felling intensity was 21 % of the total stand volume, while only 11 % in 2022. In both years beech dominated among the harvested trees. The harvest intensity should have been increased to ensure the successful recruitment of fir, as only that would preserve the selection structure in the studied single-tree selection forest.
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