Table 1 Statistical values of growth characteristics and wood properties of sampled trees

Stem diameter (cm)

16.9

4.6

11.7

26.4

Tree height (m)

12.2

3.6

6.8

16.3

Number of annual rings

11

2

9

14

Wood fiber length (mm)

1.42

0.05

1.35

1.51

Vessel element length (mm)

0.71

0.05

0.62

0.77

Vessel frequency (No./mm²)

101

13

89

133

Vessel diameter (μm)

75.3

3.7

69.6

79.3

Wood fiber diameter (μm)

28.1

3.2

24.7

35.0

Wood fiber wall thickness (μm)

2.62

0.90

1.80

4.81

Air-dry density (g/cm³)

0.43

0.05

0.37

0.50

MOE (GPa)

6.22

0.43

5.40

6.89

MOR (MPa)

60.0

6.2

52.2

72.0

Compressive strength (MPa)

30.4

2.3

27.3

34.7