Glasnik Sumarskog fakulteta 2017 Issue 115, Pages: 127-146
https://doi.org/10.2298/GSF1715127S
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Structure and productivity of mixed spruce and fir forests on Mt. Kopaonik
Šljukić Biljana (Faculty of Forestry, Belgrade)
Pantić Damjan (Faculty of Forestry, Belgrade)
Medarević Milan (Faculty of Forestry, Belgrade)
Obradović Snežana (Faculty of Forestry, Belgrade)
Borota Dragan (Faculty of Forestry, Belgrade)
Čuković Duško (Faculty of Forestry, Belgrade)
The subject of this research are mixed forests of spruce and fir in the area
of NP Kopaonik, which belong to the community of spruce and fir -
Abieti-Piceetum abietis Mišić et Popović, 1978. The basis for the study of
the structural development and production potential of these forests are
data from 12 sample plots, with the average size of 0.18 ha. In terms of
coenoecological affiliation all the sample plots belong to the group of
ecological units - forests of spruce and fir (Abieti-Piceetum abietis, Mišić
et Popović, 1978) on acid brown and brown podzolic soils, which are
differentiated into 5 ecological units: Abieti-Piceetum abietis oxalidetosum
on brown podzolic soil, Abieti-Piceetum abietis oxalidetosum on acid brown
soil, Abieti-Piceetum abietis vaccinietosum on brown podzolic soil,
Abieti-Piceetum abietis typicum on brown podzolic soil and Abieti-Piceetum
abietis Dr.ymetosum on brown pozolic soil. In structural terms, these
forests are characterized by very diverse structural forms, ranging from the
structure of even-aged stands to typical multi-storey, unevenaged-aged
stands. The form of cumulative curves of tree distribution is in most cases
determined by spruce as the dominant species. At the same time, thin and
medium-thick trees dominate, while the presence of stems with large
dimensions is minimal. The average volume of these forestse is 777 m3•ha-1,
with a mixture ratio of 0.7: 0.3 in favor of spruce. The average value of
the current volume increment is 14 m3•ha-1, with a 68% share of spruce and
32% of fir. The percentage of increment ranges from 1.6% to 2.5% in all
sample plots and is somewhat higher for fir. The site potential, stand
characteristics and relations among the tree species have resulted in
structural complexity, high productivity and ecological stability of these
forests. Therefore, future forest management should avoid radical measures
and procedures that would violate the established relationships and dynamic
processes.
Keywords: Kopaonik, forests of spruce and fir, structural development, productivity
Project of the Serbian Ministry of Education, Science and
Technological Development, Grant no. 37008: Sustainable management of the
overall resources of forests in the Republic of Serbia