Table 1.
Information on experimental samples

Province No. of Tree ring Diameter (cm) Average of ring width (mm) Latewood proportion (%) Tree trimming year
Goseong-gun 85 48 3.1 22.87 2013
Hongcheon-gun 82 42 2.6 20.19 2012
Bonghwa-gun 76 46 3.1 18.57 2014