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Relationships between sapwood and heartwood in second growth Douglas Fir. ((Res. Note Fac. For. Univ. B.C. No. 7.))


, : Relationships between sapwood and heartwood in second growth Douglas Fir. ((Res. Note Fac. For. Univ. B.C. No. 7.)). B.C. Lumberm, 38: 11, 54,57

Gives a table of sapwood widths (s.w.) at the top, middle and base of trees to show their variation with (a) dominance class, (b) crown quality (Schadelin system), separately for (c) good and (d) average sites. The s.w. of dominants, co-dominants and intermediates on (c) was not significantly greater than that of their counterparts on (d). S.w. appears to be independent of site except that it increases in the basal section with increasing site index.

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