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Official Journal of the Japan Wood Research Society

Table 2 137Cs concentration, potassium content, and moisture content of heartwood and sapwood

From: Relationship between 137Cs concentration and potassium content in stem wood of Japanese cedar (Cryptomeria japonica)

Factor

Unit

n

Heartwood (H)

Sapwood (S)

H/S

Mean

SD

Mean

SD

Mean

SD

137Cs concentration

Bq/kg dw

12

20

8

16

5

1.4

0.8

Potassium content

g/kg

12

2.31

1.13

0.91

0.37

2.64

1.16

Moisture content

%

12

137

66

238

23

0.59

0.30

  1. n number of samples, SD standard deviation, H/S heartwood/sapwood