Full text of this article is only available in PDF format.

P. S. Tikka (email)

Perä-Pohjolan koivikoiden laadusta

Tikka P. S. (1949). Perä-Pohjolan koivikoiden laadusta. Acta Forestalia Fennica vol. 57 no. 4 article id 7400. https://doi.org/10.14214/aff.7400

English title: Quality of birch (Betula sp.) stands in the northernmost Finland

Abstract

The quality of birch (Betula sp.) stands in Perä-Pohjola in Northern Finland is low due to the harsh environment, unsuitable sites for the species and unsatisfactory silvicultural state. A total of 236 sample trees were felled and measured in 8 sample plots. The trees were over 80 years old.

Only third of the stand volume of birch in the stands had adequate quality for merchantable timber. This is due to birch growing often in sites unsuitable for the species, the low density of the stands, the small average size of stems, and the low amount of large sized trees. These problems may contribute to the fact that birch seem to be susceptible to decay. The trees have often grown from sprouts, which leads often to poor stem form and decay. The volume and quality of both pure and mixed birch stands was sufficient only in the most fertile sites. Also, decay was more common in poor sites.

The PDF includes a summary in German.

Original keywords
metsänhoito; koivu; Betula sp.; laho; laatu; koivikko

English keywords
forest management; birch; quality; decay; defects; stand quality

Published in 1949

Views 2870

Available at https://doi.org/10.14214/aff.7400 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Send to email
Légaré J.-P., Hébert C. et al. (2011) Alternative silvicultural practices in irregular.. Silva Fennica vol. 45 no. 5 article id 79 (remove) | Edit comment
Jansons Ā., Robalte L. et al. (2016) Long-term effect of whole tree biomass harvestin.. Silva Fennica vol. 50 no. 5 article id 1661 (remove) | Edit comment
Johnsson H., (1967) Different ways of genetic improvement of forest .. Silva Fennica vol. 1 no. 3 article id 4753 (remove) | Edit comment
Lassila I., (1926) Research on mechanic technical properties of wood Acta Forestalia Fennica vol. 31 no. 4 article id 7203 (remove) | Edit comment
Bjedov I., Obratov–Petković D. et al. (2015) Genetic patterns in range-edge populations of Silva Fennica vol. 49 no. 4 article id 1283 (remove) | Edit comment
Cajander A. K., (1923) Some outlines of plant topographical studies in .. Acta Forestalia Fennica vol. 23 no. 10 article id 7109 (remove) | Edit comment
Barth A., (1929) Natural regeneration from the production economi.. Acta Forestalia Fennica vol. 34 no. 15 article id 7228 (remove) | Edit comment
Liu J., Tang J. et al. (2019) Do tree cavity density and characteristics vary .. Silva Fennica vol. 53 no. 1 article id 10019 (remove) | Edit comment
Wallenius T., (2011) Major decline in fires in coniferous forests – r.. Silva Fennica vol. 45 no. 1 article id 36 (remove) | Edit comment
McKay H. M., (1998) Root electrolyte leakage and root growth potenti.. Silva Fennica vol. 32 no. 3 article id 684 (remove) | Edit comment
Ahnlund Ulvcrona K., Karlsson L. et al. (2013) Comparison of silvicultural regimes of lodgepole.. Silva Fennica vol. 47 no. 3 article id 974 (remove) | Edit comment
Tikka P. S., (1949) Quality of birch (Betula sp.) stands in the nort.. Acta Forestalia Fennica vol. 57 no. 4 article id 7400 (remove) | Edit comment
Your search results