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Response of Sitka spruce and western hemlock to commercial thinning.Author(s): Joseph N. Graham; John F. Bell; Francis R. Herman
Source: Res. Pap. PNW-RP-334 Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 17 p
Publication Series: Research Paper (RP)
Station: Pacific Northwest Research Station
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DescriptionLight commercial thinning in 100-year-old, well-stocked, mixed stands of western hemlock and Sitka spruce at Cascade Head Experimental Forest produced no consistent growth and yield responses related to thinning intensity. Mortality for all causes except windfall was generally less for thinned stands than for unthinned stands. Losses from windfall appear to be related more to location than to thinning.
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CitationGraham, Joseph N.; Bell, John F.; Herman, Francis R. 1985. Response of Sitka spruce and western hemlock to commercial thinning. Res. Pap. PNW-RP-334 Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 17 p
KeywordsCommercial thinning, mixed stands, thinning effects, western hemlock, Tsuga heterophylla, Sitka spruce, Picea sitchensis, Oregon (Cascade Head Exp. For.), Cascade Head Experimental ForestOregon
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