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Official Journal of the Japan Wood Research Society

Table 2 Sample trees and logs in the present study [11]

From: Geographical variations of lumber quality of Larix sibirica naturally grown in five different provenances of Mongolia

Provenance

n 1

RN

D (cm)

TH (m)

SWV (km/s)

n 2

DMOElog (GPa)

Mean

SD

Mean

SD

Mean

SD

Mean

SD

Khentii

5

68–78

25.2

0.3

19.5

1.4

3.05

0.12

27

8.01

1.14

Arkhangai

5

38–49

26.6

0.2

11.6

1.2

2.87

0.12

15

5.17

0.88

Zavkhan

5

187–200

23.6

0.2

15.9

1.0

3.27

0.29

26

7.07

1.64

Khuvsgul

5

42–55

22.5

0.3

15.1

0.7

3.24

0.14

20

7.22

0.50

Selenge

5

46–65

22.5

0.2

17.3

2.7

3.55

0.26

23

9.72

1.08

F value

  

16.978**

7.958**

 

38.158**

  1. n1: number of harvested trees; n2: number of logs; RN: annual ring number at 1.3 m above the ground, D: stem diameter at 1.3 m above the ground; TH: tree height; SWV: stress-wave velocity of stem; DMOElog: dynamic Young’s modulus of logs
  2. **Significant difference among provenances (p < 0.01). F values were obtained by analysis of variance (ANOVA) test