TITLE

Responding to moisture How do Douglas fir and radiata compare?

PUB. DATE
August 2007
SOURCE
New Zealand Tree Grower;Aug2007, Vol. 28 Issue 3, p6
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
The article discusses three research projects undertaken for the Douglas fir Cooperative in New Zealand, aimed at quantifying the differences between Douglas fir and radiata pine in terms of the responses to moisture by the two species. In the first trial, following seven days exposure, radiata pine reached a moisture content of 27% which would sustain decay, and remained well above that moisture content for the remaining 48 days of the trial. Radiata pine sapwood rapidly attained a moisture content conducive to decay, and Douglas fir did not, in the second trial. A third study confirmed the refractory reputation of Douglas fir, and the absorbent reputation of radiata pine.
ACCESSION #
26378626

 

Related Articles

  • How does Douglas fir compare with radiata pine in framing timber? Hedley, Mick; Page, Dave; Van der Waals, Jackie // New Zealand Tree Grower;Aug2009, Vol. 30 Issue 3, p27 

    The article presents a comparison between Douglas fir and radiata pine trees in framing timber. Douglas fir suppliers describe the wood as more resistant to moisture uptake, more durable, and stronger compared to radiata pine. An experiment was conducted by Scion Research to determine the loss...

  • ASSESSMENT OF COMMERCIAL IN-LINE METER FOR MEASURING THE MOISTURE CONTENT OF RADIATA PINE LUMBER. Simpson, Ian; Haslett, Tony // Forest Products Journal;Mar2001, Vol. 51 Issue 3, p65 

    Four commercially available in-line moisture meters were assessed using 40-mm-and 50-mm-thick Pinus radiata (radiata pine). Linear regression models were developed between the meter readings and the moisture content (MC) determined by ovendrying, and confidence intervals (CI) were determined to...

  • Equilibrium moisture content of radiata pine at elevated temperature and pressure reveals measurement challenges. Pearson, Hamish; Gabbitas, Brian; Ormarsson, Sigurdur // Journal of Materials Science;Jan2013, Vol. 48 Issue 1, p332 

    Relatively few studies have been performed on the equilibrium moisture content (EMC) of wood under conditions of elevated temperature and pressure. Eight studies indicated that EMC near saturation decreased between 100 and 150 °C, whilst five studies indicated that EMC increased. The aim of...

  • Te Koawa Station post conference field day. Bennett, Pauline // New Zealand Tree Grower;Aug2009, Vol. 30 Issue 3, p13 

    The article offers information on a 2009 Conference field trip to Te Koawa Station in the Gisborne region of New Zealand. Te Koawa Station is owned by Bob Wishart and Meg Gaddun. The 1,375-hectare property features medium to steep hill country, flat river terraces, and sheep and beef farm. Trees...

  • FRAMING MOVEMENT.  // Inwood;Jul/Aug2009, Issue 87, p26 

    The article presents the results of a study which compared the loss of stiffness between radiata pine and Douglas fir under conditions promoting decay, conducted by Scion for the New Zealand Douglas Fir Cooperative. The findings revealed that some decay in untreated Douglas fir does not cause...

  • The positives outweigh the negatives. Laurie, Allan // New Zealand Tree Grower;May2004, Vol. 25 Issue 2, p34 

    Focuses on positive developments in New Zealand's plantation forest industry. Details of the harvest of pruned radiata shelterbelt and Douglas fir from a Canterbury plains property; Stability of domestic market despite external factors according to Wrightson Forestry Services; Update on the...

  • Understanding the stability of Douglas fir timber.  // New Zealand Tree Grower;Aug2007, Vol. 28 Issue 3, p3 

    The article focuses on a project created by the Douglas-fir Association in New Zealand to obtain depth understanding of the stability performance of Douglas fir and to develop tools to segregate logs before processing. In the first phase of the project, logs of both Douglas fir and radiata pine...

  • Legacies of organic matter removal: decreased microbial biomass nitrogen and net N mineralization in New Zealand Pinus radiata plantations.  // Biology & Fertility of Soils;Apr2010, Vol. 46 Issue 4, p309 

    The effect of variations in organic matter removal during harvesting on microbial biomass nitrogen was determined in four Pinus radiata plantations between 9 and 17 years after harvesting. Variation in microbial biomass nitrogen with season and the response of net nitrogen mineralization to...

  • Characterization of a strong CCA-treated wood degrader, unknown Crustoderma species. Yong-Seok Choi; Gyu-Hyeok Kim; Young Lim; Seong Kim; Yuji Imamura; Tsuyoshi Yoshimura; Jae-Jin Kim // Antonie van Leeuwenhoek;Mar2009, Vol. 95 Issue 3, p285 

    Abstract  In this study, basidiomycete isolates that possessed a strong ability to degrade chromated copper arsenate (CCA)-treated wood were characterized. These fungal isolates, which were collected from CCA-treated pine log wastes, showed no recognizable morphological properties on...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics