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Metsätieteen aikakauskirja Dissertationes Forestales Suo - Mires and Peat
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Full text of this article is only available in PDF format.

Rihko Haarlaa (email), Matti Kärkkäinen

Tervalepän kuitujen pituus.

Haarlaa R., Kärkkäinen M. (1982). Tervalepän kuitujen pituus. Silva Fennica vol. 16 no. 4 article id 5166. https://doi.org/10.14214/sf.a15081

English title: Fibre length in common alder

Abstract

A material consisting of 21 common alder (Alnus glutinosa (L.) Gaertn.) trees from 11 stands was collected. From each stem discs were sawn by 2 m interval. Samples were taken of the discs from various distances from pith. They were macerated and the average fibre length was based on 50 observations.

The fibre length increased significantly from the pith to the disc surface. The increase was approximately similar at various heights of the tree. The tree characteristics had only minor effect. However, near the pith the increase in fibre length was higher in trees with wide growth rings than in other trees. Near the disc surface the growth rate had no effect. In typical pulpwood bolts the average length was 800–950 μm which corresponds well to the data given in the literature.

The PDF includes a summary in English.

Original keywords
kuitupuu; tervaleppä; puun anatomia; kuidut

English keywords
fibre length; Alnus glutinosa; pulpwood; fibres

Published in 1982

Views 3245

Available at https://doi.org/10.14214/sf.a15081 | Download PDF

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