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

August Renvall (email)

Observations on the eccentricity of pine trunks in Lapland

Renvall A. (1923). Observations on the eccentricity of pine trunks in Lapland. Acta Forestalia Fennica vol. 26 no. 4 article id 7092. https://doi.org/10.14214/aff.7092

Abstract

The hard climate and other environmental conditions cause irregularities in the growth of trees in Lapland. Those changes weaken the characteristics of the tree for industrial use and hence lowers the timber price. The eccentricity is mainly caused by the strong wind burden.

The data for the article consists of 428 increment core samples from pine trees different ages, sizes and growth rate. There were collected in years 1910-1912 in Finnish Lapland, regions Utsjoki and Inari. The increment cores were collected on the height of 1.3 meters in south-north direction straight crosswise through the whole tree. The difference of length was measured between southern and northern half rays. Earlier studies show that the eccentricity remains the same in different heights of the tree. Hence studying the variations only on the breast height radiuses is possible.

The mean eccentricity is 12.3% and its maximum varies mostly between 20 and 25%. There are no differences in eccentricity between trees of different age classes or diameter. 

Keywords
pine; diameter; timber quality; Lapland; eccentricity

Published in 1923

Views 2765

Available at https://doi.org/10.14214/aff.7092 | 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
Erjala P., Saramäki J. (1972) Determination of the need for fertilizer applica.. Silva Fennica vol. 6 no. 1 article id 4860 (remove) | Edit comment
Turtiainen M., Saastamoinen O. et al. (2012) Picking of wild edible mushrooms in Finland in 1.. Silva Fennica vol. 46 no. 4 article id 911 (remove) | Edit comment
Runeckles V. C., Palmer K. T. et al. (1981) Effects of field exposures to SO2 on Douglas fir.. Silva Fennica vol. 15 no. 4 article id 5137 (remove) | Edit comment
Tanabe J., Ishiguri F. et al. (2018) Within-tree radial and among-family variations i.. Silva Fennica vol. 52 no. 2 article id 9914 (remove) | Edit comment
Zubizarreta Gerendiain A., Peltola H. et al. (2008) Differences in growth and wood properties betwee.. Silva Fennica vol. 42 no. 3 article id 247 (remove) | Edit comment
Boston K., Bettinger P. (2001) Development of spatially feasible forest plans: .. Silva Fennica vol. 35 no. 4 article id 578 (remove) | Edit comment
Renvall A., (1923) Observations on the eccentricity of pine trunks .. Acta Forestalia Fennica vol. 26 no. 4 article id 7092 (remove) | Edit comment
Your search results