Wood density variation of six major tree species of the Northwest Territories
Wood density measurements on green and ovendry volume bases were made and their variations were statistically analyzed for six major tree species of the Northwest Territories. These values, based on samples from 336 trees, showed that the species had highly significant (P < 0.01) differences in w...
| Published in: | Canadian Journal of Forest Research |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Canadian Science Publishing
1986
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1139/x86-021 http://www.nrcresearchpress.com/doi/pdf/10.1139/x86-021 |
| Summary: | Wood density measurements on green and ovendry volume bases were made and their variations were statistically analyzed for six major tree species of the Northwest Territories. These values, based on samples from 336 trees, showed that the species had highly significant (P < 0.01) differences in wood densities when compared at each of the 10 sampled relative height positions along the tree stem. For tree bole locations near the bottom, there were highly significant (P < 0.01) differences among various diameter size classes, but these differences decreased in significance toward the top. A predictor model was derived for estimating volume-weighted average basic wood density of a tree from its basic wood density at breast height. The lowest wood density in the majority of the species was in a band of varying length including or approaching the midpoint of the tree bole. Such information on density gradients is useful in allocating parts of a tree for optimum use. |
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