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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592


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Title: Forest thinnings : for integrated lumber and paper production

Source: Forest products journal. Vol. 57, no. 11 (Nov. 2007): Pages [8]-13

Author(s)Zhu, J.Y.; Scott, C.T.; Gleisner, R.; Mann, D.; Vahey, D.W.; Dykstra, D.P.; Quinn, G.H.; Edwards, L.L.

Publication Year: 2007  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4709-3A

Abstract: Integrated lumber and paper production using forest thinning materials from U.S. National Forests can significantly reduce the cost of prescriptive thinning operations. Many of the trees removed during forest thinnings are in small-diameter classes (diameter at breast height °‹6 in) with suppressed growth. These trees produce low lumber yield but can produce quality thermomechanical pulps (TMPs) due to uniformity of wood density and tracheid wall structure and a high mature wood fraction. This was demonstrated in commercial trials conducted at a lumber mill and a newsprint mill in the U.S. Pacific Northwest. Whole log and residual chips from forest thinnings produced at the lumber mill were combined with chips from normal pulping operations to produce newsprint. In all TMP trials, no significant change was found in correlations between the pulp long fraction and the pulp Canadian Standard Freeness.

Keywords: Forest thinning, Lumber, testing, pulping, wood density, tracheary cells, lodgepole pine, pulpwood, wood fibers, tracheids, small-diameter timber, small timbers, utilization, suppressed growth, thinnings, pulp and paper processes, thermomechanical pulping, smallwood

File size: 526 kb(s)

This publication is also viewable on Treesearch:  view
RITS Product ID: 1451
Current FPL Scientist associated with this product
Zhu, JunYong
Research General Engineer

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