Along with the value assortment structure this paper also presents the percentage of assortments depending on tree diameter. The low effect of this defect of wood resulted in a significant percentage of logs for matches. The object of this study were three coppice beech stands located in the forest management areaDonjevrbasko close to Banja Luka in the Republic of Srpska, north-western part of Bosnia andHerzegovina. False heart (red heart) is one of very significant defects of beech wood, and its incidence, inter alia, depends on tree age. Because of the differences in stand age, the data are not unified for the localities, although there are no statistically significant differences between value assortment structure for diameter degrees represented in them.
Beech coppice series#
There are no statistically significant differences between the value assortment structure on the established sample plot series within the same locality, consequently the data ere united.
The occurrence of better quality logs (sawlogs) in these stands, in contrast to the beech coppice stand in the area of Crni Vrh results from the more favourable diameter structure. The value percentage of logs for matches, sawlogs of the I and II classes, technical roundwood, mine timber, fuelwood and pulpwood, grows with the increase of the tree diameter. The results of the analyses show that the value assortment structure (sum of the values of assortments produced from one tree) grows significantly with the increase of tree diameter and this dependence is presented by a degree function. The assortments represented in the assortment structure, based on the stemwood quality are: Logs for matches, sawlogs I II and III classes, mine timber, technical roundwood, pulpwood, wood for excelsior and fuelwood, I and II classes. Assortment structure was evaluated according to the articles of the valid standard (JUS). The trends of development and increment of individual trees, as well as the productivity of beech coppice stands in the region of Crni Vrh were studied.
Pantić Damjan (Šumarski fakultet Univerziteta u Beogradu, Beograd)Īssortment structure in beech coppice stands was studied in the area of Boljevac. Glasnik Sumarskog fakulteta 2004 Volume, Issue 89, Pages: 91-102Īssortment structure in beech coppice stands in Boljevac regionĭanilović Milorad (Šumarski fakultet Univerziteta u Beogradu, Beograd)
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