Abstract
An account in English of research already described [cf. For. Abstr. 14 (No. 1453)] on the effect of thinning grade on increment, costs and value for Douglas Fir. KEYWORDS: Costs thinning \ forest economics \ forest management \ Pseudotsuga taxifolia \ Pseudotsuga menziesii \ thinning \ Thinnings economics \ Thinnings research (Abstract retrieved from CAB Abstracts by CABI’s permission)

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