J. For. Sci., 2011, 57(3):123-130 | DOI: 10.17221/18/2010-JFS

Density of juvenile and mature wood of selected coniferous species

V. Gryc, H. Vavrčík, K. Horn
Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic

The objective of research was to determine the density of juvenile (JW) and mature wood (MW) of selected coniferous species growing in the Czech Republic. The research included the wood of Norway spruce (Picea abies (L.) Karst.), Scots pine (Pinus sylvestris L.) and European larch (Larix decidua Mill.). The juvenile wood density close to the pith was 410 kg.m-3 for spruce, 391 kg.m-3 for pine and 573 kg.m-3 for larch with 12% water content. Mature wood in the peripheral parts had the higher density in all species - spruce 516 kg.m-3, pine 552 kg.m-3 and larch 652 kg.m-3. The highest difference, the difference of 161 kg.m-3, between juvenile and mature wood was found out in Scots pine. The large difference in the wood density of pine is caused by a considerable difference in the mean ring width of its juvenile and mature wood. Further, it was proved that wood density decreases with the increasing ring width while wood density increases with the increasing proportion of latewood.

Keywords: density; juvenile wood; larch; mature wood; Norway spruce; Scots pine

Published: March 31, 2011  Show citation

ACS AIP APA ASA Harvard Chicago Chicago Notes IEEE ISO690 MLA NLM Turabian Vancouver
Gryc V, Vavrčík H, Horn K. Density of juvenile and mature wood of selected coniferous species. J. For. Sci. 2011;57(3):123-130. doi: 10.17221/18/2010-JFS.
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open full article

    References

    1. B E. H. (1981): The nature of the resource. New Zealand Journal of Forestry, 26: 162-169.
    2. C S.R. (1991): Wood characteristics influence pine TMP quality. Tappi, 74: 135-146.
    3. C D.J. (1992): Corewood (juvenile wood) in Pinus radiata - should we be concerned? New Zealand Journal of Science, 22: 87-95.
    4. ČSN 49 0108 (1976): Wood, Determine of Wood Density by a Physical and Mechanical Testing. Praha, Vydavatelství Úřadu pro normalizaci a měření: 4. (in Slovak)
    5. Č I., B ©., K M., P E. (2005). Selected physical and mechanical properties of juvenile Scots pine wood. Acta facultatis Xylologiae, XLVII: 5-11. (in Slovak)
    6. G V., V H., K O. (2009): Selected properties of wood Blue spruce (Picea pungens Engelm.) from nonforest land. Acta Universitatis agriculturae et silviculturae Mendelianae Brunensis, LVII: 37-43. (in Czech)
    7. H J.M. (1965): A survey of wood density, tracheid length and latewood characteristics of radiata pine grown in New Zealand. New Zealand Forest Service Forest research Institute, Technical Paper 4: 34.
    8. H J. M. (1981): Wood quality of radiata pine. Appita, 35: 211-215
    9. L J.A., T C.G., M R.W. (1985): Genetic variation in the time of transition from juvenile to mature wood in loblolly pine (Pinus taeda). Silvae Genetica, 34:14-19.
    10. M P J. (2007): Selected Properties of Spruce Juvenile Wood. [Report from Ph.D. Thesis.] Zvolen, Technical university in Zvolen: 20. (in Slovak)
    11. M R., G E., S U.H., N G. (2004): Modelling juvenile-mature wood transition in Scots pine (Pinus sylvestris L.) using nonlinear mixed effects models. Annals of Forest Science, 61: 831-841. Go to original source...
    12. P J., K J. (1961): The distribution of important physical and mechanical properties in stems of spruce and fir and their relation to development of new technologies of softwoods. Part I. Distribution of density, ring width, proportion of late wood. Drevársky vyskum, 6: 85-101. (in Slovak)
    13. P A.J., D Z C. (1980): Textbook of wood technology. Structure, Identification, Properties and Uses of the Commercial Woods of the United States and Canada. New York, McGraw-Hill, Inc.: 722.
    14. P R.G., R B.E. (1984): Growth rate and bending properties of selected loblolly pines. Wood and Fiber Science, 16: 37-47.
    15. R B.J. (1959): Juvenile and adult wood. Journal of the Institute of Wood Science, 5: 58-61.
    16. R M., Č P., K T., P E., ® T. (2009): Influence of temperatures and precipitation on radial increment of Orlicke hory Mts. spruce stands at altitudes over 800 m a.s.l. Journal of Forest Science, 55: 257-263. Go to original source...
    17. Ú L., M P., K S., K J., © J. (2001): Tree Species of the Czech Republic. Písek, Matice lesnická: 333. (in Czech)
    18. Z B. J., S J. R. (1998): Juvenile Wood in Forest Trees. Berlin, Heidlberg, Springer-Verlag: 300.
    19. Z B. J., T J. (1984): Applied Forest Tree Improvement. New York, Wiley: 511.

    This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY NC 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.


    Return to the content