The variability of pulp-wood basic specific gravity of softwood
In the present study, basic density of pulpwood of Norway spruce (Piceas abies /L./ Karst.) and Scots pine (Pinus sylvestris L.) was investigated. The variability of basic density and factors applied are out of concern. Factors are characterised by localization along the log, growing conditions defi...
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Online Access: | https://acta.mendelu.cz/52/4/0073/ |
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doaj-cb8fd279bd7c4a13802c6b145b9fb5812020-11-25T00:24:44ZengMendel University PressActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis1211-85162464-83102004-01-01524738210.11118/actaun200452040073The variability of pulp-wood basic specific gravity of softwoodJiří Holan0Vladimír Gryc1Ústav nauky o dřevě, Mendelova zemědělská a lesnická univerzita v Brně, Zemědělská 3, 613 00 Brno, Česká republikaÚstav nauky o dřevě, Mendelova zemědělská a lesnická univerzita v Brně, Zemědělská 3, 613 00 Brno, Česká republikaIn the present study, basic density of pulpwood of Norway spruce (Piceas abies /L./ Karst.) and Scots pine (Pinus sylvestris L.) was investigated. The variability of basic density and factors applied are out of concern. Factors are characterised by localization along the log, growing conditions defined by geographic area of Czech Republic, diameter of log, and the storing of logs within transport loading. Basic density was determined on cores taken by modified Pressler borer in the radial direction from bark to pith. The average basic density of Norway spruce is comparable to Scots pine, as well as the variation coefficient. Basic density of Norway spruce was found 443 kg.m-3 (Vx = 13.9%) where as the Scots pine base density was 450 kg.m-3 (Vx = 15.5%). Basic density was significantly influenced by all factors assessed except the localization of cores along logs. The investigation demonstrated that basic density can be affected by locality of supply in comparison to within logs variability that have much lower importance.https://acta.mendelu.cz/52/4/0073/basic densityround-wood polesNorway spruceScots pine |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jiří Holan Vladimír Gryc |
spellingShingle |
Jiří Holan Vladimír Gryc The variability of pulp-wood basic specific gravity of softwood Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis basic density round-wood poles Norway spruce Scots pine |
author_facet |
Jiří Holan Vladimír Gryc |
author_sort |
Jiří Holan |
title |
The variability of pulp-wood basic specific gravity of softwood |
title_short |
The variability of pulp-wood basic specific gravity of softwood |
title_full |
The variability of pulp-wood basic specific gravity of softwood |
title_fullStr |
The variability of pulp-wood basic specific gravity of softwood |
title_full_unstemmed |
The variability of pulp-wood basic specific gravity of softwood |
title_sort |
variability of pulp-wood basic specific gravity of softwood |
publisher |
Mendel University Press |
series |
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
issn |
1211-8516 2464-8310 |
publishDate |
2004-01-01 |
description |
In the present study, basic density of pulpwood of Norway spruce (Piceas abies /L./ Karst.) and Scots pine (Pinus sylvestris L.) was investigated. The variability of basic density and factors applied are out of concern. Factors are characterised by localization along the log, growing conditions defined by geographic area of Czech Republic, diameter of log, and the storing of logs within transport loading. Basic density was determined on cores taken by modified Pressler borer in the radial direction from bark to pith. The average basic density of Norway spruce is comparable to Scots pine, as well as the variation coefficient. Basic density of Norway spruce was found 443 kg.m-3 (Vx = 13.9%) where as the Scots pine base density was 450 kg.m-3 (Vx = 15.5%). Basic density was significantly influenced by all factors assessed except the localization of cores along logs. The investigation demonstrated that basic density can be affected by locality of supply in comparison to within logs variability that have much lower importance. |
topic |
basic density round-wood poles Norway spruce Scots pine |
url |
https://acta.mendelu.cz/52/4/0073/ |
work_keys_str_mv |
AT jiriholan thevariabilityofpulpwoodbasicspecificgravityofsoftwood AT vladimirgryc thevariabilityofpulpwoodbasicspecificgravityofsoftwood AT jiriholan variabilityofpulpwoodbasicspecificgravityofsoftwood AT vladimirgryc variabilityofpulpwoodbasicspecificgravityofsoftwood |
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