Skip to page content
USDA Forest Service

Research & Development Treesearch

Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help - We Participate  Government Made Easy

Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (1.87 MB bytes)

Title: Effects of model choice and forest structure on inventory-based estimations of Puerto Rican forest biomass

Author: Brandeis, Thomas J.; Rocio, Maria Del; Rozo, Suarez;

Date: 2005

Source: Caribbean Journal of Science, Vol. 41, No. 2, 250-268

Publication Series: Miscellaneous Publication

Description: Total aboveground live tree biomass in Puerto Rican lower montane wet, subtropical wet, subtropical moist and subtropical dry forests was estimated using data from two forest inventories and published regression equations. Multiple potentially-applicable published biomass models existed for some forested life zones, and their estimates tended to diverge with increasing tree diameter at breast height. Inventoried forests showed structural characteristics typical of secondary tropical forests and stand successional trends of increasing stem density from initial reversion to young closed forest, followed by a decrease in stem density and gradual increase in basal area and biomass as the stands developed. Stems with DBH < 10 cm contributed 9.9-50.9% of total aboveground biomass. When present, 50-90+ cm DBH trees greatly increased aboveground biomass values on individual plots, but these effects subsided when averaged over the forested landscape. Inherent variability in large-tree form combined with equations that extrapolate beyond the range of sampled trees impedes accurate aboveground biomass estimation for larger trees. Application of equations developed in areas that most closely match potential study sites should improve overall estimation accuracy of all forest stands, however, locally developed biomass equations are lacking for subtropical dry and perhaps subtropical moist forest life zones in Puerto Rico.

Keywords: biomass, forestry inventory, Puerto rico, Rio Grande de Arecibo

Publication Notes:

  • 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.
  • You may send email to to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)



Brandeis, Thomas J.; Rocio, Maria Del; Rozo, Suarez 2005. Effects of model choice and forest structure on inventory-based estimations of Puerto Rican forest biomass. Caribbean Journal of Science, Vol. 41, No. 2, 250-268


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.