Table 3. Parameter estimates of Kozak’s stem taper model for Ver.1 (2009 stem volume table) (KFS, 2009).

Parameter	Pinus densiflora in Gangwon region	Pinus densiflora in central region	Pinus rigida	Pinus koraiensis	Larix kaempferi	Chamaecyparis obtusa	Quercus acutissima	Quercus mongolica
a1	1.1886	1.1619	1.0598	0.9417	0.8946	1.0636	1.1434	1.3380
a2	0.8869	0.8751	0.9629	1.0201	1.0208	0.9741	0.9162	0.8840
a3	1.0010	1.0014	0.9998	0.9970	0.9975	0.9987	0.9995	1.0000
b1	−0.6203	−0.5110	−0.1955	0.7667	0.6159	1.1647	0.2044	0.7584
b2	0.0736	0.0972	0.0111	−0.1556	−0.1052	−0.2864	−0.0907	−0.1833
b3	−1.5224	−2.0307	−0.9354	1.1785	0.2387	1.3298	0.1243	1.0931
b4	1.1230	1.1866	0.6401	−0.5214	−0.0987	−0.7236	0.1248	−0.4576
b5	−0.0087	0.0419	0.0522	0.1235	0.1512	0.1247	0.0948	0.1651
p	0.22	0.28	0.14	0.18	0.17	0.12	0.20	0.16