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| Average ring density (1) |
| Black spruce (1) |
| Boreal forest (1) |
| Density-climate relationship (1) |
| Maximum ring density (1) |
| Minimum ring density (1) |
| X-ray densitometry (1) |
| Average ring density (1) |
| Black spruce (1) |
| Boreal forest (1) |
| Density-climate relationship (1) |
| Maximum ring density (1) |
| Minimum ring density (1) |
| X-ray densitometry (1) |