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All issues Volume 67 / No 3 (May 2010) Ann. For. Sci., 67 3 (2010) 302 Full HTML
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Table V

Absolute mean bias (MAB), root mean square error (RMSE) and mean percentage of bias (MPB) of diameter inside bark with and without crown variables for balsam fir, red spruce, and white pine.

Balsam fir Red spruce White pine
Model
MAB (cm) RMSE MPB (%) MAB (cm) RMSE MPB (%) MAB (cm) RMSE MPB (%)
Kozak (2004) Model 02 without Crown 0.5042 0.7620 4.9184 0.5375 0.8179 5.0392 1.1564 1.6546 5.7128
Kozak (2004) Model 02 with CR 0.4933 0.7402 4.8115 0.5242 0.7959 4.9143 1.1548 1.6514 5.7050
Kozak (2004) Model 02 with CL 0.4982 0.7481 4.8593 0.5269 0.7992 4.9395 1.1571 1.6528 5.7162
Kozak (2004) Model 02 with HCB 0.4966 0.7460 4.8440 0.5317 0.8066 4.9843 1.1535 1.6534 5.6988
Clark et al. (1991) I without Crown 0.5229 0.7505 5.1003 0.5809 0.8517 5.4454 1.4205 2.0432 7.0176
Clark et al. (1991) I with CR 0.5003 0.7214 4.8806 0.5676 0.8106 5.3211 1.4024 2.0221 6.9281
Clark et al. (1991) I with CL 0.5042 0.7253 4.9182 0.5678 0.8126 5.3225 1.4587 2.0952 7.2062
Clark et al. (1991) I with HCB 0.5178 0.7428 5.0511 0.5953 0.8455 5.5805 1.5344 2.1777 7.5804
Clark et al. (1991) II without crown 0.6417 0.8730 6.2595 0.7216 0.9932 6.7647 1.6174 2.2108 7.9907
Clark et al. (1991) II with CR 0.6291 0.8595 6.1362 0.7060 0.9683 6.6187 1.6203 2.2154 8.0046
Clark et al. (1991) II with CL 0.6335 0.8628 6.1796 0.7105 0.9709 6.6608 1.6539 2.2745 8.1710
Clark et al. (1991) II with HCB 0.6459 0.8791 6.3003 0.7410 1.0066 6.9464 1.7006 2.3484 8.4015
Fang et al. (2000) without crown 0.5521 0.8129 5.3852 0.6177 0.9283 5.7907 1.3454 1.8623 6.6469
Fang et al. (2000) with CR 0.7578 1.0078 7.3920 0.6888 1.0042 6.4575 1.3737 1.9041 6.7866
Fang et al. (2000) with CL 0.6431 0.9250 6.2733 0.6582 0.9835 6.1706 1.3783 1.9083 6.8092
Fang et al. (2000) with HCB 0.9925 1.2837 9.6810 0.7800 1.0935 7.3125 1.3246 1.8350 6.5437

CR: Crown ratio. CL: Crown length. HCB: Height to live crown base.

Clark et al. (1991) I: upper stem diameters at 5.27 m were obtained by linear interpolation.

Clark et al. (1991) II: upper stem diameters at 5.27 m were predicted based on the regression form presented in Clark et al. (1991).