Table 4. Statistic of the F-test summary of site index curves for C. japonica and national site index curves for C. japonica.

Site Index range Mean* Variance* F-value P-value
α β α β
Site Index 12 13.40 12.97 10.37 8.31 1.2475 0.3736
Site Index 14 15.64 15.12 14.11 11.25 1.2549 0.3704
Site Index 16 17.87 17.28 18.43 14.83 1.2427 0.3757
Site Index 12 under stand age 9.52 9.40 1.61 2.11 0.7607 0.4320
Site Index 14 under stand age 11.11 10.97 2.18 2.90 0.7527 0.4294
Site Index 16 under stand age 12.70 12.50 2.85 3.81 0.7489 0.4282
Site Index 12 over stand age 15.58 14.92 2.94 1.73 1.6955 0.2882
Site Index 14 over stand age 18.17 17.38 4.00 2.33 1.7144 0.2843
Site Index 16 over stand age 20.77 19.88 5.23 3.01 1.7386 0.2793
Note: α is Gyeongsang-do and β is national scale.