Life-cycle assessment of forest harvesting and transportation operations in Tennessee

Abstract A life-cycle assessment study of roundwood supply chain activities occurring within the state of Tennessee was performed, in an effort to quantify the environmental impacts associated with wood harvest and transport operations. Statewide data from a survey given to Tennessee forest industry operators was used to construct representative primary life cycle input datasets that are unique to the industry profile within the state. This data was combined with inputs and assumptions from other relevant reports and publications to fully characterize the supply chain. Results of the life cycle assessment study indicated that greenhouse gas emissions and fossil energy demand per green tonne of wood were lower for chainsaw-based harvesting systems compared to feller buncher-based harvesting, because the relatively low harvest productivity of the chainsaw systems was more than made up for by the low inputs of fuels, lubricants, and machinery for this system. Transport of roundwood by truck resulted in transport impacts that were nearly as large as harvesting impacts, assuming a 150-km roundtrip based on Tennessee survey data. Results of this supply chain study can help the state of Tennessee understand the environmental impacts associated with traditional forest products industry operations, and guide development of new bio-based products, where environmental performance will be a key driver of successful development and implementation.

[1]  Pasi Lautala,et al.  A Survey Analysis of Forest Harvesting and Transportation Operations in Michigan , 2014 .

[2]  R. Popovici,et al.  Estimating chainsaw operating costs based on fuel, lubricants and spare parts. , 2013 .

[3]  Bruce Lippke,et al.  Carbon, Fossil Fuel, and Biodiversity Mitigation With Wood and Forests , 2014 .

[4]  Tom N. Kalnes,et al.  Life cycle assessment of electricity generation using fast pyrolysis bio-oil , 2011 .

[5]  Sara González-García,et al.  Cradle-to-gate life cycle assessment of forest supply chains: Comparison of Canadian and Swedish case studies , 2017 .

[6]  Sara González-García,et al.  Environmental impacts of forest production and supply of pulpwood: Spanish and Swedish case studies , 2009 .

[7]  Tomas Nordfjell,et al.  Energy use and emissions due to the manufacture of a forwarder , 2002 .

[8]  Bryce J. Stokes,et al.  U.S. Billion-ton Update: Biomass Supply for a Bioenergy and Bioproducts Industry , 2011 .

[9]  Ajit K. Srivastava,et al.  Environmental impacts of roundwood supply chain options in Michigan: life-cycle assessment of harvest and transport stages , 2014 .

[10]  A. Stromman,et al.  Life Cycle Assessment of Second Generation Bioethanols Produced From Scandinavian Boreal Forest Resources , 2009 .

[11]  Dalia Abbas,et al.  A Survey Analysis of Harvesting Logistics in Tennessee , 2015 .

[12]  David R Shonnard,et al.  Comparative Life‐Cycle Assessments for Biomass‐to‐Ethanol Production from Different Regional Feedstocks , 2008, Biotechnology progress.

[13]  Sara González-García,et al.  Cradle-to-gate life cycle inventory and environmental performance of Douglas-fir roundwood production in Germany , 2013 .

[14]  Edie Sonne,et al.  Greenhouse gas emissions from forestry operations: a life cycle assessment. , 2006, Journal of environmental quality.

[15]  Bruce Lippke,et al.  Life-Cycle Impacts of Forest Resource Activities in the Pacific Northwest and Southeast United States , 2005 .

[16]  N. Shah,et al.  The greenhouse gas emissions performance of cellulosic ethanol supply chains in Europe , 2009, Biotechnology for biofuels.

[17]  Abhijit Dutta,et al.  Sustainability metrics and life cycle assessment for thermochemical conversion of woody biomass to mixed alcohols. , 2013 .

[18]  V. Halilovic,et al.  Fuel and lubricants consumption in the phase of harvesting and processing wood in public enterprise forest offices Vareš section 37. , 2012 .

[19]  Clara Valente,et al.  Bioenergy from mountain forest: a life cycle assessment of the Norwegian woody biomass supply chain , 2011 .

[20]  G. Keoleian,et al.  Renewable Energy from Willow Biomass Crops: Life Cycle Energy, Environmental and Economic Performance , 2005 .

[21]  T. Nemecek,et al.  Overview and methodology: Data quality guideline for the ecoinvent database version 3 , 2013 .

[22]  D. Dillman.  Mail and internet surveys: The tailored design method, 2nd ed. , 2007 .