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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.

Matti Kärkkäinen (email)

Havaintoja koivutukkien epäpyöreydestä ja pituusmittaeroista.

Kärkkäinen M. (1980). Havaintoja koivutukkien epäpyöreydestä ja pituusmittaeroista. Silva Fennica vol. 14 no. 3 article id 5083. https://doi.org/10.14214/sf.a15024

English title: Observations on the out-of-roundness and deviations from nominal lengths of birch logs

Abstract

A material of 478 birch logs were measured. The horizontal diameter was on average larger than the vertical one, the difference increasing with the increasing diameter. The reason was supposed to be the effect of sweep and out-of-roundness of logs. The difference between the actual and nominal length increased with the increasing lengths, but decreased with increasing diameter.

The PDF includes a summary in English.

Original keywords
puutavaranmittaus; koivu; sahaus; läpimitta; koivutukki; epäpyöreys

English keywords
birch; Betula; logs; diameter; roundness

Published in 1980

Views 5918

Available at https://doi.org/10.14214/sf.a15024 | Download PDF

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