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Article

Norway Spruce Stem Parameters in Sites with Different Stand Densities in Lithuanian Hemiboreal Forest

1
Institute of Forestry, Lithuanian Research Centre for Agriculture and Forestry, Liepų str. 1, Girionys, LT-53101 Kaunas, Lithuania
2
Agriculture Academy, Vytautas Magnus University, Studentų str. 11, LT-53361 Kaunas, Lithuania
3
Lithuanian State Forest Service, Pramonės str., 11A, LT-51327 Kaunas, Lithuania
*
Author to whom correspondence should be addressed.
Academic Editor: Bartolomeo Schirone
Forests 2021, 12(2), 201; https://doi.org/10.3390/f12020201
Received: 13 January 2021 / Revised: 29 January 2021 / Accepted: 6 February 2021 / Published: 10 February 2021
(This article belongs to the Section Forest Ecology and Management)
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. View Full-Text
Keywords: Norway spruce; stand density; tree-based characteristics; branch diameter; number of branches; butt log Norway spruce; stand density; tree-based characteristics; branch diameter; number of branches; butt log
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MDPI and ACS Style

Beniušienė, L.; Petrauskas, E.; Aleinikovas, M.; Varnagirytė-Kabašinskienė, I.; Beniušis, R.; Šilinskas, B. Norway Spruce Stem Parameters in Sites with Different Stand Densities in Lithuanian Hemiboreal Forest. Forests 2021, 12, 201. https://doi.org/10.3390/f12020201

AMA Style

Beniušienė L, Petrauskas E, Aleinikovas M, Varnagirytė-Kabašinskienė I, Beniušis R, Šilinskas B. Norway Spruce Stem Parameters in Sites with Different Stand Densities in Lithuanian Hemiboreal Forest. Forests. 2021; 12(2):201. https://doi.org/10.3390/f12020201

Chicago/Turabian Style

Beniušienė, Lina, Edmundas Petrauskas, Marius Aleinikovas, Iveta Varnagirytė-Kabašinskienė, Ričardas Beniušis, and Benas Šilinskas. 2021. "Norway Spruce Stem Parameters in Sites with Different Stand Densities in Lithuanian Hemiboreal Forest" Forests 12, no. 2: 201. https://doi.org/10.3390/f12020201

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