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Early Development of Matched Planted and Naturally Regenerated Douglas-Fir Stands After Slash Burning in the Cascade Range

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We compared matched planted and naturally regenerated plots in 35- to 38-year-old Douglas-fir (Pseudotsuga menziesii var. menziesii) stands at seven locations in western Washington and Oregon. Total number of live stems is similar, but stands planted to Douglas-fir average 26 more live stems/ac of Douglas-fir and 39 fewer stems/ac of other conifers than do naturally regenerated stands. Despite an average 2-yr delay in planting after burning, dominant Douglas-fir in planted stands average 3 fewer years than natural regeneration to attain breast height after burning. Volume of all live trees (1.6 in. dbh and larger) and of Douglas-fir average 40% greater on planted plots. Volume of live conifers 7.6 in. dbh and greater average 41% greater on planted plots as compared to naturally regenerated plots (2977 vs. 2118 ft³/ac). Differences that developed on these plots are probably less than differences that would be shown by plantations being established today with prompt planting and improved nursery stock and planting methods. Planting slash-burned clearcuts in this general area of the Cascade Range resulted in faster volume production. West. J. Appl. For. (8)1:5-10.
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Document Type: Journal Article

Affiliations: Washington State University Cooperative Extension, Chehalis, WA

Publication date: 1993-01-01

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Western Journal of Applied Forestry covers the western United States, including Alaska, and western Canada; WJAF will also consider manuscripts reporting research in northern Mexico that has potential application in the southwestern United States.
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