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. Currently I am interested in the following possible research topics:

Education and Degrees
Courses Taught
Selected Publications

Vitorelo, B., H.-S. Han W. Elliot. 2012. Productivity and cost of integrated harvesting for fuel reduction thinning. Forest Products Journal, Vol. 61(8):664–674.

Harrill, H. and H.-S. Han. 2012. Productivity and cost of integrated harvesting of wood chips and sawlogs in stand conversion operations. International Journal of Forestry Research. Article ID: 893079 (Open Journal), 10p.

Han, H.-S., T. Bilek, J. Dramm, D. Loeffler, and D. Calkin. 2011. Financial feasibility of a log sort yard handling small-diameter logs: A preliminary study. Western Journal of Applied Forestry. Vol.26(4):174-182.

Bruce, J., H.-S. Han, A.E. Akay, and W. Chung. 2011. Computer-aided cost estimation for forest road construction. Western Journal of Applied Forestry. Vol.26(4):189-197.

Harrill, H. and H.-S. Han. 2010. Application of hook-lift trucks in centralized logging slash grinding operations. Biofuels. Vol.1(3):399-408.

Han, H.-S., J. Halbrook, F. Pan, and L. Salazar. 2010. Economic evaluation of a roll-off trucking system removing forest biomass resulting from shaded fuelbreak treatments. Biomass & Bioenergy Journal. Vol.34: 1006-1016.

Han, H.-S., D.S. Page-Dumroese, and L. Johnson. 2009. Soil compaction associated with cut- to-length and whole-tree harvesting of conifer forest. Canadian Journal of Forest Research. Vol.39: 976-989.

Keyes, C., P. Matzka, K. Wright, R. Glebocki, and H.-S. Han. 2008. Early precommercial thinning of redwood sprout clumps: evaluation of four techniques. International Journal of Forest Engineering. Vol.19(2): 28-36.

Pan, Fei, H.-S. Han, L. Johnson and W. Elliot. 2008. Production and cost of harvesting and transporting small-diameter trees for energy. Forest Products Journal. Vol.58(5): 47-53.

Pan, Fei, H.-S. Han, L. Johnson and W. Elliot. 2008. Net energy output from harvesting small-diameter trees using a mechanized system. Forest Products Journal. Vol.58(1/2): 25-30.

Adebayo, A., H.-S. Han and L. Johnson. 2007. Productivity and cost between cut-to-length and whole tree harvesting in a mixed conifer stand. Forest Products Journal, Vol.57 (6): 59-69.

Hartley, D. and H.-S. Han. 2007. Effects of four silvicultural prescriptions on cable harvesting productivity and cost in western Washington. Western Journal of Applied Forestry, Vol. 22(3): 204-212.

Froese, K and H.-S. Han. 2006. Residual stand damage from cut-to-length thinning in a mixed conifer stand in northern Idaho. Western Journal of Applied Forestry, Vol. 21(3): 142-148.

Han, H.-S., D. Page-Dumroese, S.-K. Han, and J. Tirocke. 2006. Effect of slash, machine passes, and moisture content on soil strength in a cut-to-length harvesting. International Journal of Forest Engineering, Vol. 17(2): 11-24.

Han, H.-S., H.W. Lee, and L.R. Johnson. 2004. Economic feasibility of an integrated harvesting system for small-diameter trees in southwest Idaho. Forest Products Journal. Vol.54 (2): 21-27.

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Han-Sup Han
Contact Information:

Office: 114 Natural Resources Building
Email: hh30@humboldt.edu
Ph. 707.826.3725
Fax: 707.826.5634

Mailing Address:

Department of Forestry and Wildland Resources
1 Harpst Street