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Title: Hardwoods for Woody Energy Crops in the Southeast United States:Two Centuries of Practitioner Experience

This paper summarizes opinions from forest industry experts on the potential for hardwood tree species to serve as feedstock for bioenergy in the Southeast United States. Hardwoods are of interest for bioenergy because of desirable physical qualities, genetic research advances, and growth potential. Experts observe that high productivity rates in southeastern plantations are confined to limited site conditions or require costly inputs. Eastern cottonwood and American sycamore grow quickly on rich bottomlands where they compete with higher-value crops. These species are also prone to pests and disease. Sweetgum is frost hardy, has few pest or disease problems, and grows across a broad range of sites, yet growth rates are relatively low. Eucalypts require few inputs and offer high potential productivity, but are limited by frost to the lower coastal plain and Florida. More time and investment in silviculture, selection, and breeding will be needed to develop hardwoods as competitive biofuel feedstock species. Loblolly pine has robust site requirements, growth rates rivaling hardwoods and lower costs of production. Because of existing stands and know-how, the forestry community considers loblolly pine to be a prime candidate for plantation bioenergy in the Southeast. Further research is required to study naturally regenerated hardwood biomassmore » resources.« less
Authors:
 [1] ;  [2]
  1. ORNL
  2. USDA Forest Service
Publication Date:
OSTI Identifier:
1019324
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Biomass & Bioenergy; Journal Volume: 34; Journal Issue: 12
Research Org:
Oak Ridge National Laboratory (ORNL)
Sponsoring Org:
EE USDOE - Office of Energy Efficiency and Renewable Energy (EE)
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; BIOFUELS; BIOMASS; BREEDING; COTTONWOODS; CROPS; DISEASES; FORESTRY; FORESTS; FROST; GENETICS; PINES; PRODUCTION; PRODUCTIVITY; SILVICULTURE; SYCAMORES; TREES bioenergy; short-rotation woody crops; poplar; American sycamore; sweetgum; eucalyptus; loblolly pine; hardwood plantations; Southeastern United States; productivity.