Faculty and Staff

Han-Sup Han – Professor, Forest Operations and Engineering

Personal and Research Interest

Forest Operations involves in the application of a variety of forest management tools and processes to achieve the objectives of sustainable forest management. Traditionally, wood production has been the main objective of timber extraction practices to supply raw materials (i.e., logs and wood chips) to the forest products manufacturing companies. While this still holds as an important goal of timber harvesting today, equipment and systems used in forest operations are now often employed to address other forest management issues such as stand condition improvement and fuel treatments to reduce wildfire risks. The use of harvesting systems as a tool to a wide range of forest management objectives is now increasingly common, as we often deal with man-made or second-growth stands.

Forest operations need to be viewed as an integrated component of forest management and not an isolated field of study. Collaboration with other disciplines is increasingly important in order to address the challenging multiple objectives of today’s forest management. Recently, I, along with other researchers, received a $5.88 million Biomass Research Development Initiative (BRDI) grant from the Department of Energy. The interdisciplinary research team members are working together to find solutions for utilizing forest residues for production of bioenergy and biobased products through integration of mobile biomass conversion technologies that will operate on or near forest sites. Details on the scope of the research project are available at the project web site (http://wastetowisdom.com/ ). Currently I am interested in the following research topics:

Education and Degrees
Courses Taught
Selected Publications

Han, S.-K., H-S. Han, and W. Elliott, and T. Bilek. ThinTool: A spreadsheet model to evaluate fuel reduction thinning cost, net energy output, and nutrient impacts. Submitted to Applied Engineering in Agriculture.

Kizhakkepurakkal, A. and H.-S. Han. Impacts of sorting and processing tree tops on productivity and cost of timber harvesting operations. Submitted to International Journal of Forest Engineering.

Bisson, J. and H.-S. Han. Quality of feedstock produced from sorted forest residues. Submitted to American Journal of Biomass and Bioenergy.

Woo, H, and H.-S. Han. Evaluation of two screening systems (Star and Deck) for productivity, fuel consumption, and size distributions. Submitted to Biomass and Bioenergy.

Montgomery, T. and H.-S. Han. 2015. A. Kizhakkepurakkal. A GIS-based method for locating and planning centralized biomass grinding operations. Accepted for publication and in press. Biomass & Bioenergy.

Kizhakkepurakkal A. R. and H.-S. Han. 2015. Actual biomass recovered: comparing whole-tree and tree-length harvesting methods. Accepted for publication and in press. European Journal of Forest Engineering.

Bisson, J., S.-K. Han, and H.-S. Han. 2015. Evaluating the system logistics of a biomass recovery operation in northern California. Accepted for publication and in press. Forest Products Journal.

Kizhakkepurakkal A. R., H.-S. Han, T. Montgomery, A. Hohl and J. Bisson. 2015. Determining cost zones and hot spots for procuring feedstock for woody biomass-based power plants in northern California. California Agriculture Journal. Vol. (69): 184-190.

Han, S.-K., H.-S. Han, and J. Bisson. 2015. Effects of grate size on grinding productivity, fuel consumption, and particle size distribution. Forest Products Journal. Vol. (65): 209-216.

Han, H.-S., R. Bergman, E. Oneil, I. Eastin and L. Johnson. 2015. Cradle-to-gate life cycle impacts of redwood forest resource harvesting in northern California. Journal of Cleaner Production. Vol. 99: 217-229.

Bergman, R., E. Oneil, I. Eastin, H.-S. Han. 2014. Life cycle impacts of manufacturing redwood decking in northern California. Wood and Fiber Science. Vol. 46(3): 1-18

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Han-Sup Han
Contact Information:

Office: 209 Forestry Building
Email: hh30@humboldt.edu
Ph. 707.826.3725
Fax: 707.826.5634

Mailing Address:

Department of Forestry and Wildland Resources
1 Harpst Street