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Official Journal of the Japan Wood Research Society

Table 1 Details of the logs and study sites in this study

From: Intra-ring radial cracks in Sakhalin spruce (Picea glehnii) from artificial forest

Site

Age

Number of logs

Top end diameter of logs (cm)

Average temperature (℃)

Minimum temperature (℃)

Annual precipitation (mm)

A

38

18

19.7 ± 2.2

7.1 ± 0.3

− 26.1 ± 1.8

956 ± 210

B

42

21

21.3 ± 5.1

6.2 ± 0.3

− 17.6 ± 1.8

1159 ± 224

C

39

12

15.7 ± 2.6

6.6 ± 0.3

− 15.7 ± 2.3

2331 ± 310

D

39

18

18.7 ± 2.1

7.6 ± 0.3

− 19.1 ± 2.0

1138 ± 159

E

33

10

20.7 ± 3.2

5.3 ± 0.3

− 21.5 ± 1.7

1318 ± 220