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Official Journal of the Japan Wood Research Society

Table 1 Number of annual rings, stem diameter, and tree height of sample trees

From: Preliminary evaluation for quality of dimension lumber in four common softwoods in Mongolia

Species

n

NAR

D (cm)

TH (m)

Mean

SD

Mean

SD

Mean

SD

Pinus sylvestris

5

72

3

27.1

2.2

16.2

2.2

Pinus sibirica

5

62

4

26.5

1.3

11.9

1.5

Picea obovata

5

60

6

27.9

2.2

14.3

2.3

L. sibirica

5

50

9

25.6

1.6

15.3

1.3

  1. n, number of trees; NAR, number of annual rings at 1.3 m above the ground; D, stem diameter at 1.3 m above the ground; TH, tree height; SD, standard deviation