Pacific Northwest Research Station

Title: Early development of matched planted and naturally regenerated Douglas-fir stands after slash burning in the Cascade Range.

Author: Miller, R.E.; Bigley, R.E.; Webster, S.

Date: 1993

Source: Western Journal of Applied Forestry. 8(1): 5-10

Description: 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 stemslac of Douglas-fir and 39 fewer stems lac 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 ft 3 lacy. 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 slashburned clearcuts in this general area of the Cascade Range resulted in faster volume production.

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Citation

Miller, R.E.; Bigley, R.E.; Webster, S.  1993.  Early development of matched planted and naturally regenerated Douglas-fir stands after slash burning in the Cascade Range..   Western Journal of Applied Forestry. 8(1): 5-10