EJPAU 2008. Giefing D. , Pazdrowski W. , Jelonek T. , Tomczak A. , Kupczyk G. CYCLICAL WOOD HETEROGENEITY OF NORWAY SPRUCE <I>Picea abies </I>(L) Karst. ON STEM PROFILES OF TREES FROM DIFFERENT SOCIAL POSITIONS IN STANDS OF AGE CLASS IV

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.

2008
Volume 11
Issue 1

Topic:

Forestry

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Giefing D. , Pazdrowski W. , Jelonek T. , Tomczak A. , Kupczyk G. 2008. CYCLICAL WOOD HETEROGENEITY OF NORWAY SPRUCE Picea abies (L) Karst. ON STEM PROFILES OF TREES FROM DIFFERENT SOCIAL POSITIONS IN STANDS OF AGE CLASS IV, EJPAU 11(1), #10.
Available Online: http://www.ejpau.media.pl/volume11/issue1/abs-10.html

CYCLICAL WOOD HETEROGENEITY OF NORWAY SPRUCE PICEA ABIES (L) KARST. ON STEM PROFILES OF TREES FROM DIFFERENT SOCIAL POSITIONS IN STANDS OF AGE CLASS IV

Dieter Franciszek Giefing, Witold Pazdrowski, Tomasz Jelonek, Arkadiusz Tomczak, Grzegorz Kupczyk
Department of Forest Utilization, University of Life Sciences in Poznań, Poland

ABSTRACT

The investigations aimed at the determination of the share of juvenile, maturing (transition) and mature wood in stems of Norway spruce from stands of age class IV. The analyses included spruces of the southern and northern limits, as well as those coming from the so-called spruce-free zone. The shares of individual types of wood in stems varied, depending on the social class of tree position in the stand and on the provenance of analyzed spruces. This trend was manifested more markedly in relation to juvenile wood than in the other types of wood.

Key words: Norway spruce, cyclical heterogeneity, juvenile wood, maturing wood, mature wood, pure density.

Dieter Franciszek Giefing
Department of Forest Utilization,
University of Life Sciences in Poznań, Poland
Wojska Polskiego 71A, 60-625 Poznań, Poland
Phone: +48 61 848 77 54
email: giefing@au.poznan.pl

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

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

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

Grzegorz Kupczyk
Department of Forest Utilization,
University of Life Sciences in Poznań, Poland
Wojska Polskiego 71A, 60-625 Poznan. Poland

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.