Skip to Main Content
Comparison of methods to determine disk and heartwood areasAuthor(s): Michael C. Wiemann; John P. Brown; Neal D. Bennett
Source: Research Papers, Rep. NE-720. Newtown Square, PA: U. S. Department of Agriculture, Forest Service, Northeastern Research Station. 15 p.
Publication Series: Research Paper (RP)
Station: Northeastern Research Station
View PDF (1.07 MB)
DescriptionThe feasibility of using radius measurements on disks to determine cross-sectional areas of tree stems and the heartwood they contain was examined in sugar maple and red oak butt logs. Areas calculated from quadratic means of four stem radii and four heartwood radii were compared with areas measured with a planimeter. The lineal measurement method was less precise for disks taken from stumps than it was for disks taken from the tops of butt logs, probably because of bole irregularities. The radii measurements were more variable for heartwood than for complete disks in sugar maple but not in red oak. Areas computed from radii were the same as areas measured with a planimeter for only maple stump disks and red oak stump disks and heartwood.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationWiemann, Michael C.; Brown, John P.; Bennett, Neal D. 2002. Comparison of methods to determine disk and heartwood areas. Research Papers, Rep. NE-720. Newtown Square, PA: U. S. Department of Agriculture, Forest Service, Northeastern Research Station. 15 p.
Keywordsplanimeter, red oak, sugar maple
- Effects of uneven-aged and diameter-limit management on West Virginia tree and wood quality
- Use of damage surveys and field inventories to evaluate oak and sugar maple health in the northern United States
- Estimating air drying times of lumber with multiple regression
XML: View XML