Pacific Northwest Research Station

Title: Deterioration rates of blowndown timber and potential problems associated with product recovery.

Author: Aho, Paul E.; Cahill, James M.

Date: 1984

Source: Gen. Tech. Rep. PNW-GTR-167. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 15 p

Station ID: GTR-PNW-167

Description: This paper summarizes published reports of deterioration and product recovery studies conducted on dead timber. Decay rates experienced in blowndown timber are presented for western redcedar (Thuja plicata Donn ex D. Don), Douglasfir (Pseudotsuga menziesii (Mirb.) Franco), western hemlock (Tsuga heterophylla (Raf.) Sarg.), and Pacific silver fir (Abies amabilis (Dougl.) ex Forbes). Results from product recovery studies conducted on insect-killed western white pine(Pinus monticola Dougl. ex D. Don), grand fir (Abiesgrandis (Dougl. ex D. Don) Lindl.), Engelmann spruce(Picea engelmannii Parry ex Engelm.), and insect-damaged Douglas-fir are also presented.

Keywords: Blowdowns, decay (wood), deterioration (wood), dead timber, salvage timber, lumber recovery, lumber value

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Citation

Aho, Paul E.; Cahill, James M.  1984.  Deterioration rates of blowndown timber and potential problems associated with product recovery..   Gen. Tech. Rep. PNW-GTR-167. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 15 p