at Forest Products Laboratory
Contact Information
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726
Phone: (608) 231-9200
Fax: (608) 231-9592
Email

 

You are here: FPL Home  / Information Products & Services  / Publications

Requested Publication

Title: Characterization of Juvenile wood in Lodgepole Pine in the Intermountain West

Source: In: Proceedings of the 5Sth International Convention of Society of Wood Science and Technology, August 27-31, 2012 - Beijing, CHINA; 2012.

Author(s): Gorman, Thomas M.; Kretschmann, David E.

Publication Year: 2012  View PDF » Mail this web page's link »

Publication Series: Conference Proceedings
Associated Research Project(s):   FPL-4714-1A

Abstract: Juvenile wood (core wood) is typically characterized as being less dimensionally stable and having lower mechanical properties than mature wood. Determination of the age of transition from juvenile wood to mature wood can provide basic information needed to assess dimensional stability and better utilize small-diameter trees growing in the intermountain west as solid-sawn products and as structural composites. While there is considerable information available on the variation of specific gravity with the age of the tree for westem conifers, specific gravity is not useful for predicting dimensional stability, and as a single predictor of mechanical properties only explains about 50% of the observed variation. Determination of the age of transition between juvenile wood and mature wood, and some of the factors that could effect this transition, is important when making judgments about utilization options for naturally occurring stands of trees in the intermountain west region of the United States.

Keywords: Lodgepole pine; Juvenile wood; Mature wood; Longitudinal shrinkage; Microfibril angle.

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 4,968 kb(s)

Date posted: 10/05/2012

This publication is also viewable on Treesearch:  view
RITS Product ID: 62391
Current FPL Scientist associated with this publication
Kretschmann, David E.
Research General Engineer
  

Additional items that might interest you


2011 Research Highlights from FPL....view



2010 Research Highlights from FPL....view



Termite Eradication: A search for the Holy Grail.... view



Moisture Management in Residential Construction Series videos...view


Wood Floor Systems in Residential Construction Series videos....view
- FPL's Mission and Strategic Plan -

FPL's mission is to identify and conduct innovative wood and fiber utilization research that contributes to conservation and productivity of the forest resource, thereby sustaining forests, the economy, and quality of life. ... ..more »

- FPL Research Emphasis Areas -
Advanced Composites

As an integral part of the FPL mission, we improve the long-term sustainability of our Nation's forests by creating valuable composite products from biobased materials ... ..more »


Advanced Structures

The FPL has been in the forefront of wood-frame housing research since 1910 and has long been recognized as a world leader in such housing-related areas as engineered wood ... ..more »


Forest Biorefinery

We all know the compelling reasons that the United States needs to reduce its dependence on fossil fuels. Historically, the greatest increases in energy demand have been for transportation fuels ... ..more »


Nanotechnology

A leader in wood products research for over a century, the FPL is positioning itself to become the lead Federal research facility for the application of nanotechnology in forest products ... more »


Woody Biomass Utilization

Forests in the United States contain a substantial amount of small-diameter, overstocked, and underutilized material.FPL research projects are exploring the potential of the small-diameter ... ..more »