Gate-to-Gate Life-Cycle Inventory of Softwood Lumber Production

Authors

  • Michael R. Milota
  • Cynthia D. West
  • Ian D. Hartley

Keywords:

Dimension lumber, life-cycle, energy, CO<sub>2</sub>, southern pine, Douglas-fir, western hemlock

Abstract

To perform a life-cycle analysis, a life-cycle inventory is needed. Data from surveys of manufacturers are presented for the energy and materials required to produce 1.623 m3 (1 mbf) of planed, dry, dimension lumber from logs in the western and southern U.S. In the West and South, 53 and 41% of the log volume (3.05 and 3.92 m3) leaves the mill as planed, dry dimension lumber, respectively. A much greater portion of the energy used for production in the South is produced on site from wood fuels. CO2 emissions were greater in the South because of the wood fuel, 574 kg versus 419 kg per 1.623 m3 produced.

References

Briggs, D. G. 1994. Forest products measurements and conversion factors with special emphasis on the U.S. Pacific Northwest. College of Forest Resources. University of Washington, Seattle, WA. Contribution No. 75.nFranklin Associates. 2001. The Franklin Associates life cycle inventory database. SimaPro5 Life-cycle assessment software package, version 36, 2001. Prairie Village, KS.nInternational Organization for Standardization (ISO). 1997. Environmental management—life cycle assessment—principles and framework. ISO 14040. First Edition 1997-06-15. Geneva, Switzerland. 16 pp.nJungmeier, G., F. Werner, A. Jarnehammar, C. Hohenthal, and K. Richter. 2002a. Allocation in LCA of woodbased products, Experiences of cost action E9, Part I, Methodology. Int. J. LCA 7(5):290-294.nJungmeier, G., F. Werner, A. Jarnehammar, C. Hohenthal, and K. Richter. 2002b. Allocation in LCA of wood-based products, Experiences of cost action E9, Part II, Examples. Int. J. LCA. 7(6):369-375.nJungmeier, G., F. Darby, A. Evald, C. Hohenthal, A.-K. Petersen, H.-P. Schwaiger, and B. Zimmer. 2003. Energy aspects in LCA in forest products. Int. J LCA. 8(2)99-105.nKeoleian, G. A., S. Blanchard, and P. Reppe. 2001. Life-cycle energy, costs, and strategies for improving a singlefamily house. J. Industr. Ecol. 4(2):135-156.nMilota, M. R. 2004. Softwood lumber—Pacific Northwest Region. In CORRIM Phase I Final Report Module B. Life-cycle environmental performance of renewable building materials in the context of residential construction. University of Washington, Seattle, WA. http://www.corrim.org/reports/. 75 pp.nMilota, M. R., C. West, and I. Harley. 2004. Softwood lumber—Southeast Region. In CORRIM Phase I Final Report Module B. Life-cycle environmental performance of renewable building materials in the context of residential construction. University of Washington, Seattle, WA. http://www.corrim.org/reports/. 75 pp.nPanshin, A. J., and C. de Zeeuw. 1980. Textbook of wood technology. McGraw-Hill, Inc. New York, NY. 722 pp.nPré Consultants, B. V. 2001. SimaPro5 Life-Cycle Assessment Software Package, Version 36. Plotter 12, 3821 BB Amersfoort, The Netherlands. http://www.pre.nl/.nPuettmann, M. E. 2000. Environmental life-cycle assessment of southern pine lumber treated with borate wood preservative. Ph.D. thesis, University of Minnesota, St. Paul, MN. 180 pp.nSouthern Forest Products Association. 2001. Industry Statistics. Webpage address: http://www.sfpa.org/Industry_Statistics/ISregprod.htm'>www.sfpa.org/Industry_Statistics/ISregprod.htm.nWestern Wood Products Association. 2000. 1999 WWPA Statistical Yearbook of the Western Lumber Industry. Portland, OR.nWilen, C., A. Moilanen, and E. Kurkela. 1996. Biomass feedstock analyses. Technical Research Center of Finland. VTT Publications No. 282. 25 pp.n

Downloads

Published

2007-06-05

Issue

Section

Research Contributions