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Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Miškotyra / Forestry (A004)
Author(s): Beniušienė, Lina;Petrauskas, Edmundas;Aleinikovas, Marius;Varnagirytė-Kabašinskienė, Iveta;Beniušis, Ričardas;Šilinskas, Benas
Title: Norway spruce stem parameters in sites with different stand densities in Lithuanian hemiboreal forest
Is part of: Forests. Basel : MDPI AG, 2021, vol. 12, iss. 2
Extent: p. 1-12
Date: 2021
Keywords: Norway spruce;Stand density;Tree-based characteristics;Branch diameter;Number of branches;Butt log
Abstract: Background and Objectives : The study aimed to determine the changes of the main stem and branch parameters of Norway spruce (Picea abies (L.) H. Karst) trees under different stand densities. More specifically, the objective was to develop the models for the determination of branch diameter in 0–6 m log from root collar, taken as one of the parameters directly influencing the stem quality. The study continues a piece of research on stem and branch parameters’ responses to different stand density (SD) in the plantations of coniferous tree species in Lithuania. Materials and Methods: The following key parameters were measured in this study: total tree height, diameter at breast height, height to the lowest live branch, height to the lowest dead branch, and diameter of all branches in 0–6 m log. The linear regression models to predict branch diameter in 0–6 m log were developed based on stand density (SD), tree characteristics (tree diameter at breast height, DBH; and tree height, H) and other related stem and branch parameters. Results and Conclusions: Directly measured tree DBH, branch diameters and number of branches in 0–6 m log decreased significantly with the increasing SD. In the 0–6 m log, the branch diameter and the diameter of the thickest branch were identified as the main parameters related to stem quality. The best fitted models, developed including SD, tree DBH, branch diameter, and diameter of the thickest branch in 0–3 m log, can be proposed as a predictor for stem-wood quality for Norway spruce in hemiboreal forest zone
Affiliation(s): Lietuvos agrarinių ir miškų mokslų centro Miškų institutas
Miškų ir ekologijos fakultetas
Valstybinė miškų tarnyba
Vytauto Didžiojo universitetas
Appears in Collections:1. Straipsniai / Articles
Universiteto mokslo publikacijos / University Research Publications

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