Estimating Understory Biomass

$29.50 plus tax (Refund Policy)

Buy Article:


Stand conditions and species composition vary so much in hardwood and mixed pine-hardwood stands in the southeastern United States that understory biomass cannot be estimated with reasonable precision from overstory conditions alone. A tally of trees less than 5 inches d.b.h. by 1-inch-diameter classes can provide the basis for a reliable estimate. In a study of cruising procedures, 10-factor prism tallies made independently by two service foresters resulted in an overestimate of understory weight of 37 percent by one forester and an underestimate of 30 percent by the other. Fixed radius plot tallies in which understory tree diameters were ocularly estimated resulted in errors of 11 and 24 percent by the same foresters. Training and experience could reduce estimation errors associated with this procedure. Fixed radius plots in which individual tree diameters and total heights were measured yielded estimates of understory biomass that were only 3.7 percent above the actual understory biomass of 19.1 green tons per acre.

Document Type: Journal Article

Affiliations: Project Leader, Utilization of Southern Timber, USDA Forest Service, Southeastern Forest Experiment Station, Athens, Georgia

Publication date: February 1, 1982

More about this publication?
  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
  • Membership Information
  • ingentaconnect is not responsible for the content or availability of external websites
Related content



Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more