Skip to main content
Log in

Density variation in Bayur (Pterospermum sp.), Randagong (Trema orientalis) and Magas (Duahanga moluccana) from Sabah, Malaysia

Die Variabilität der Rohdichte in Bayur (Pterospermum sp.), Randagong (Trema orientalis) and Magas (Duabanga moluccana) aus Sabah, Malaysia

  • Originalarbeiten
  • Published:
Holz als Roh- und Werkstoff Aims and scope Submit manuscript

Abstract

The lesser utilised timbers Bayur (Pterospermum sp.), Randagong (Trema orientalis) and Magas (Duahanga moluccana) were analysed with regard to the variation of the wood density (ovendry and at 14% moisture content). The average ovendry density of the different individuals varies from 0.36–0.43 g/cm3 in Bayur, from 0.24–0.38 g/cm3 in Randagong and from 0.26–0.35 g/cm3 in Magas. The corresponding values for the density at 14% moisture content are 0.38–0.49 g/cm3 in Bayur, 0.29–0.41 g/cm3 in Randagong and 0.27–0.35 g/cm3 in Magas. All trees show an increase in density from the centre of the stem to the periphery. The differences between height levels are not significant.

Zusammenfassung

Die nicht intensiv genutzten Holzarten Bayur (Pterospermum sp.), Randagon (Trema orientalis) and Magas (Duabanga moluccana) wurden hinsichtlich der Variabilität der Rohdichte (darrtrocken und bei 14% Holzfeuchte) untersucht. Die durchschnittliche Rohdichte (darrtrocken) der verschiedenen Individuen variiert von 0.36–0.43 g/cm3 in Bayur, von 0.24–0.38 g/cm3 in Randagong und von 0.26–0.35 g /cm3 in Magas. Die entsprechenden Werte der Rohdichte bei 14% Holzfeuchte sind 0.38–0.49 g/cm3 in Bayur, 0.29–0.41 g/cm3 in Randagong und 0.27–0.35 g/cm3 in Magas. In allen Individuen steigt die Rohdichte vom Stamminneren zur Peripherie hin an. Unterschiede zwischen verschiedenen Stammebenen sind nicht signifikant.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Dahms KG (1982) Asiatische, ozeanische und australische Exporthölzer. DRW-Verlag, Stuttgart

    Google Scholar 

  • Lemmens RHMJ, Soerianegara I, Wong WC (eds.) (1995) Timber trees: Minor commercial species. Plant Resources of South-East Asia No. 5(2). PROSEA, Bogor, Indonesia

    Google Scholar 

  • Wiemann MC, Williamson GB (1989) Radial gradients in the specific gravity of wood in some tropical and temperate trees. For Sci 35: 197–210

    Google Scholar 

  • Zobel BJ, van Buijtenen JP (1989) Wood variation — Its causes and control (Springer series in wood science). Springer, Berlin Heidelberg New York

    Google Scholar 

  • Wong TM (1982) A dictionary of Malaysian timbers. Malaysian Forest Records No. 30. Forest Department, Kuala Lumpur

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Trockenbrodt, M., Nasrah, Y. & Misalam, K. Density variation in Bayur (Pterospermum sp.), Randagong (Trema orientalis) and Magas (Duahanga moluccana) from Sabah, Malaysia. Holz als Roh- und Werkstoff 56, 221–222 (1998). https://doi.org/10.1007/s001070050304

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/s001070050304

Keywords

Navigation