Pojava i udio lažne srži kod stabala i tehničke oblovine bukve (Fagus silvatica L.)
DOI:
https://doi.org/10.54652/rsf.2026.v56.i1.641Ključne riječi:
beech, false heartwood, technical roundwoodSažetak
This study investigated the occurrence and proportion of false heartwood in beech trees and technical roundwood in relation to diameter at breast height (DBH) and tree age. The research was conducted in four forest compartments dominated by beech, and the sample comprised 300 trees representing a wide range of diameter and age classes. Following tree felling and the production of forest wood assortments, the volume of each assortment was determined using Huber's formula, whereas the volume of false heartwood was calculated according to Smalian's formula. Regression analysis revealed that both DBH and tree age had a statistically significant effect (95% confidence level) on the occurrence of false heartwood and its average proportion in the volume of technical roundwood. False heartwood was found in all trees with a DBH exceeding 50 cm and/or an age greater than 110 years. The occurrence of false heartwood among some relatively young trees at certain sites was primarily associated with mechanical damage and the applied forest management practices. The average proportion of false heartwood in the volume of technical roundwood was 9.36%, ranging from 1.20% in the 10-15 cm diameter class to 17.76% in the 60-65 cm diameter class, where its occurrence was the highest. In addition, the analysis also revealed the occurrence of a double culmination of the observed variable. Knowledge of the occurrence and extent of false heartwood in beech can significantly improve the content and quality of forest management planning by enabling more accurate predictions of the assortment structure of forest wood products obtained from tree felling.
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Copyright (c) 2026 Jusuf Musić, Jasmin Avdibegović, Jelena Knežević, Velid Halilović, Ehlimana Pamić, Vildan Hajić, Admir Avdagić
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