Full text of this article is only available in PDF format.

Håkan Lindström (email)

Intra-tree models of juvenile wood in Norway spruce as an input to simulation software

Lindström H. (2002). Intra-tree models of juvenile wood in Norway spruce as an input to simulation software. Silva Fennica vol. 36 no. 2 article id 542. https://doi.org/10.14214/sf.542

Abstract

Juvenile wood found in the first 5–25 growth rings of a conifer has a structure and properties that differ from mature wood. Juvenile wood is therefore said to influence processing and the end-use of sawn products. Consequently, models describing the juvenile wood content, within and between trees, could be useful in improving the utilisation and value of wood as an industrial raw material. The objective of the present study was to develop juvenile wood models, based on Norway spruce trees, which could be used within a model system for conversion simulation studies. Nineteen stands of Norway spruce (Picea abies [L.] Karst.) were selected throughout Sweden. Based on DBH, two small, two medium, and two large diameter timber trees were taken from each stand. DBH varied between 180–470 mm, tree height between 17–34 m, and total age between 51–152 years. Each selected tree was cross-cut into logs; discs were prepared from the large end of each log and from the top end of the top log. Image analysis was used to determine growth ring development on sampled discs. Using tree and growth variables, the juvenile core radius and the logarithmic value of juvenile wood percentage were modelled. The two models had an R2Adj of 0.71 and 0.88 respectively.

Keywords
Picea abies; image analysis; juvenile wood; growth conditions

Author Info
  • Lindström, University of Canterbury, School of Forestry, Private Bag 4800, Christchurch, New Zealand E-mail lindstromhakan@netscape.net (email)

Received 6 March 2000 Accepted 16 January 2002 Published 31 December 2002

Views 3292

Available at https://doi.org/10.14214/sf.542 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Send to email
Ilvessalo Y., (1929) Notes on some forest (site) types in North America Acta Forestalia Fennica vol. 34 no. 39 article id 7252 (remove) | Edit comment
Kiljunen K., (1986) Growth of third world forest industry: possible .. Silva Fennica vol. 20 no. 3 article id 5271 (remove) | Edit comment
Zhang S., Korhonen L. et al. (2024) How to implement the data collection of leaf are.. Silva Fennica vol. 58 no. 5 article id 24044 (remove) | Edit comment
Morgenstern E. K., Park Y. S. (1991) Breeding of Picea mariana (Mill.) B.S.P.: seed o.. Silva Fennica vol. 25 no. 4 article id 5467 (remove) | Edit comment
Cajander A. K., (1923) On the relation between forest growth and timber.. Acta Forestalia Fennica vol. 25 no. 2 article id 7077 (remove) | Edit comment
Partanen J., Leinonen I. et al. (2001) Effect of accumulated duration of the light peri.. Silva Fennica vol. 35 no. 1 article id 608 (remove) | Edit comment
Ilvessalo Y., (1920) The relation of the productive capacity of fores.. Acta Forestalia Fennica vol. 15 no. 2 article id 7040 (remove) | Edit comment
Bergh J., Nilsson U. et al. (2008) Effects of frequency of fertilisation on product.. Silva Fennica vol. 42 no. 5 article id 225 (remove) | Edit comment
Quine C. P., Humphrey J. W. et al. (2002) An approach to predicting the potential forest c.. Silva Fennica vol. 36 no. 1 article id 560 (remove) | Edit comment
Monteleone I., Ferrazzini D. et al. (2006) Effectiveness of neutral RAPD markers to detect .. Silva Fennica vol. 40 no. 3 article id 476 (remove) | Edit comment
Pakkala T., Hanski I. et al. (2002) Spatial ecology of the three-toed woodpecker in .. Silva Fennica vol. 36 no. 1 article id 563 (remove) | Edit comment
Kärkkäinen M., (1986) Model of knottiness of wood material in pine, sp.. Silva Fennica vol. 20 no. 2 article id 5266 (remove) | Edit comment
Keltikangas M., Seppälä K. (1977) The economics of growing downy birch stands on d.. Silva Fennica vol. 11 no. 1 article id 4962 (remove) | Edit comment
Kuusipalo J., (1983) Distribution of vegetation on mesic forest sites.. Silva Fennica vol. 17 no. 4 article id 5201 (remove) | Edit comment
Yli-Vakkuri P., Autio A. et al. (1968) Time lag between final cutting and regeneration Silva Fennica vol. 2 no. 3 article id 4769 (remove) | Edit comment
Hildén N. A., (1929) Common alder forest in Kontusaari Acta Forestalia Fennica vol. 34 no. 27 article id 7240 (remove) | Edit comment
Matulevičiūtė D., Motiejunaite J. et al. (2018) Decline of a protected coastal pine forest under.. Silva Fennica vol. 52 no. 2 article id 7699 (remove) | Edit comment
Nevalainen S., (2017) Comparison of damage risks in even- and uneven-a.. Silva Fennica vol. 51 no. 3 article id 1741 (remove) | Edit comment
Norrlin J. P., (1923) Overview of moos and lichen in Tornio-Muonio and.. Acta Forestalia Fennica vol. 23 no. 6 article id 7105 (remove) | Edit comment
Víquez E., Pérez D. (2005) Effect of pruning on tree growth, yield, and woo.. Silva Fennica vol. 39 no. 3 article id 375 (remove) | Edit comment
Vohland M., Stoffels J. et al. (2007) Remote sensing techniques for forest parameter a.. Silva Fennica vol. 41 no. 3 article id 471 (remove) | Edit comment
Lindström H., (2002) Intra-tree models of juvenile wood in Norway spr.. Silva Fennica vol. 36 no. 2 article id 542 (remove) | Edit comment
Your search results