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Branch thickness in unthinned stands of sitka spruce picea sitchensis bong. carr



Branch thickness in unthinned stands of sitka spruce picea sitchensis bong. carr



Scandinavian Journal of Forest Research 3(2): 241-252



Results of branch measurings in unthinned stands of Sitka spruce in Denmark are presented. Three different measures of branch thickness are discussed in relation to visual grading of structural timber. On basis of the average thickest branch 5.0 m above ground it is recommended not to let spacing exceed 1.8 .times. 1.8 m-2.0 .times. 2.0 m at establishment. Since Sitka spruce branches react profusely when spacing widens, this is the upper limit, presupposing a no-thinning regime. With reference to the literature, the same recommendation can be given on basis of machine stress gradings.

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Accession: 004857548

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DOI: 10.1080/02827588809382512



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