Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2005
Volume 8
Issue 3
Topic:
Forestry
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Jakubowski M. , Tomczak A. , Jelonek T. , Pazdrowski W. 2005. RADIAL VARIABILITY OF THE STRENGTH QUALITY COEFFICIENT OF SCOTS PINE (Pinus sylvestris L.) WOOD IN RELATION TO THE TREE BIOSOCIAL POSITION IN THE STAND, EJPAU 8(3), #08.
Available Online: http://www.ejpau.media.pl/volume8/issue3/abs-08.html

RADIAL VARIABILITY OF THE STRENGTH QUALITY COEFFICIENT OF SCOTS PINE (PINUS SYLVESTRIS L.) WOOD IN RELATION TO THE TREE BIOSOCIAL POSITION IN THE STAND

Marcin Jakubowski1, Arkadiusz Tomczak2, Tomasz Jelonek2, Witold Pazdrowski2
1 Department of Forest Utilization, August Cieszkowski Agricultural University of Poznan, Poland
2 Department of Forest Utilization, University of Life Sciences in Poznañ, Poland

 

ABSTRACT



In their study, the authors made an attempt to determine the radial variability of the strength quality coefficient of Scots pine (Pinus sylvestris L.) wood in relation to the biosocial position of trees in the stand.

The performed investigations comprised trees representing the first three Kraft classes from the pine stands of the age classes V and VI growing in conditions of the following forest site types: fresh coniferous forest (FCF) and mixed fresh coniferous forest (MFCF).

The experiments revealed that the growth site conditions and the biosocial tree position in the stand exerted some influence on the radial variability of the strength quality coefficient of Scots pine (Pinus sylvestris L.) wood. Both the size of the tree crown as expressed by its volume and, first and foremost, the height of the position of the crown centre of gravity were important.

Key words: strength quality coefficient, radial variability, forest site type, age class, biosocial position.

Marcin Jakubowski
Department of Forest Utilization,
August Cieszkowski Agricultural University of Poznan, Poland
Wojska Polskiego 71 A, 60-625 Poznan, Poland
email: nicram@au.poznan.pl

Arkadiusz Tomczak
Department of Forest Utilization,
University of Life Sciences in Poznañ, Poland
Wojska Polskiego 71 A, 60-625 Poznañ, Poland
Phone: (+48 61) 8487754
email: atomczak@au.poznan.pl

Tomasz Jelonek
Department of Forest Utilization,
University of Life Sciences in Poznañ, Poland
Wojska Polskiego 71 A, 60-625 Poznañ, Poland
Phone: (+48 61) 8487754
email: tjelonek@au.poznan.pl

Witold Pazdrowski
Department of Forest Utilization,
University of Life Sciences in Poznañ, Poland
Wojska Polskiego 71 A, 60-625 Poznañ, Poland
Phone: (+48 61) 8487757
email: kul@au.poznan.pl

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.

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