Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Juvenile Wood of Hardwoods Judged by Density Variation

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of IAWA Journal

In the ring-porous hardwoods the changes of basic density are influenced by ring width, while basic density of diffuse-porous hardwoods is almost independent of ring width. The radial variations of basic density in each ring width class are useful for distinguishing between age and growth effects. In three species of ring-porous hardwoods and four of diffuse-porous hardwoods grown in Hokkaido, Japan, these effects were investigated. The age effects on density were quite clear in all hardwoods, so juvenile wood could be defined as the region around the pith without growth effects on density and showing a decrease or increase in density outward. The growth effects on density were significant in mature wood of all ring-porous hardwoods and in the diffuse-porous Katsura (Cercidiphyllum japonicum), while in the other diffuse- porous hardwoods there was no growth effect on density. The change of basic density was also affected by the height level in the tree. Age and growth effects should be considered separately for lower, medium and upper height levels in the tree. Anatomical features were studied in some hardwoods in relation to age, growth and height effects on density variation. Age effects on density are due to the proportion of late wood in oak, to differences in vessel frequency and diameter in Katsura, and to relative fibre wall thickness in birch.

Loading

Full text loading...

/content/journals/10.1163/22941932-90000861
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/22941932-90000861
Loading

Article metrics loading...

/content/journals/10.1163/22941932-90000861
1984-01-01
2016-12-07

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    IAWA Journal — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation