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Matti Kärkkäinen

Näkökohta tyvi- ja latvaläpimitan keskiarvoon perustuvasta mäntypölkkyjen kuutioinnista.

Kärkkäinen M. (1974). Näkökohta tyvi- ja latvaläpimitan keskiarvoon perustuvasta mäntypölkkyjen kuutioinnista. Silva Fennica vol. 8 no. 2 article id 4899. https://doi.org/10.14214/sf.a14743

English title: Note on the volume based on the mean of butt and top diameters of Scots pine bolts.

Abstract

In this paper the use of butt and top diameters of pulpwood bolts for volume determination is analysed. The study is based on the taper data of Scots pine (Pinus sylvestris L.) stems. According to the results, the use of the mean of butt and top diameters in the volume determination under Finnish condition causes a positive error in small stems. If the stems are so big that the butt portions of the stems can be used as saw logs, the remaining top bolts, used as pulpwood, are estimated to be smaller than they are in reality. Accordingly, there is a negative error.

The PDF includes a summary in English.

Original keywords
kuitupuu; kapeneminen; tyviläpimitta; latvaläpimitta; mänty; puutavaranmittaus; kiintotilavuus

English keywords
pulpwood; tapering; butt diameter; top diameter; volume determination; Scots pine; Pinus sylvestris; timber scaling

Published in 1974

Available at https://doi.org/10.14214/sf.a14743 | Download PDF

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