Potential of Natural-Origin Loblolly Pine Tree Fractions as A Bioenergy Feedstock


  • A Mandalika University of Wisconsin- Madison
  • D Bragg USDA Forest Service Southern Research Station
  • J Schuler Division of Forestry and Natural Resources West Virginia University
  • D Baker Innventia AB
  • T Elder Utilization of Southern Forest Products USDA Forest Service Southern Research Station
  • L Groom USDA Forest Service Southern Research Station


Loblolly pine, Bioenergy, Chemical Characterization, Forest Residues, Thinnings


Chemical characterization was performed on ten different samples of loblolly pine (Pinus taeda L.), representing various woody components of trees (bole, slab, tops and branches, and whole tree) harvested from two naturally regenerated forests in southern Arkansas (USA). Ultimate analysis, proximate analysis using thermogravimetry, and the energy content of the samples were determined to help evaluate their bioenergy utility. These whole tree samples may be an attractive prospect for bioenergy applications such as gasification, pelletization, and combustion, owing to favorable heating content values and relatively low ash content. Although a number of logistical challenges exist in their acquisition and processing, slabs, topwood, and branches offer opportunities for bioenergy applications that can increase the utilization of forest residues without threatening more traditional uses of wood in lumber, panels, and paper.  Finally, we then briefly consider the silvicultural implications of these results for naturally regenerated southern pine-dominated forests.

Author Biographies

A Mandalika, University of Wisconsin- Madison

Biological Systems Engineering

PhD student

D Bragg, USDA Forest Service Southern Research Station

Research Forester


J Schuler, Division of Forestry and Natural Resources West Virginia University

Assistant Professor of Silviculture

T Elder, Utilization of Southern Forest Products USDA Forest Service Southern Research Station

Research Scientist

L Groom, USDA Forest Service Southern Research Station

Project Leader

Research Scientist


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Research Contributions