Compatible volume and taper models for economically important tree species of Turkey

Table 4 Bias and standard error of the estimate of diameter over bark by relative height (RH) class for five tree species using Eq. 1

RH	n	Brutian pine			Lebanon cedar			Cilicica fir			Scots pine			Black pine
RH	n	B (cm)	SEE (cm)	n	B (cm)	SEE (cm)	n	B (cm)	SEE (cm)	n	B (cm)	SEE (cm)	n	B (cm)	SEE (cm)
0.0–0.1	336	0.0041	1.3717	176	0.0412	0.8167	278	0.0016	0.7595	136	−0.0187	0.5686	241	0.0672	1.3748
0.1–0.2	327	−0.4013	1.0783	141	−0.1095	0.6328	257	−0.0275	0.5867	135	−0.1851	0.7463	216	−0.0442	0.8092
0.2–0.3	295	−0.3970	0.7400	159	−0.1032	0.6807	238	0.1400	0.6172	126	0.1123	0.6207	220	0.1678	0.6712
0.3–0.4	308	0.3052	1.0951	156	0.0686	0.7042	252	0.0993	0.6759	129	0.3065	0.9515	220	−0.0891	0.8031
0.4–0.5	299	0.6193	1.1619	144	0.2873	1.1717	248	0.1189	0.8615	132	0.5241	1.4545	220	−0.2610	0.9440
0.5–0.6	320	0.6836	2.0324	154	0.4721	1.6528	248	0.3044	1.0353	127	0.5763	1.4384	210	−0.4574	1.3925
0.6–0.7	313	0.5377	2.2470	152	0.4318	1.8091	248	0.4316	1.0937	128	0.3083	1.4423	213	−0.5466	1.7933
0.7–0.8	313	−0.0115	1.9832	155	0.3189	1.2981	250	0.3199	1.1570	129	−0.1567	1.4941	224	−0.6364	2.3604
0.8–0.9	303	−0.1775	1.7114	148	−0.0749	1.3387	251	0.1857	1.1401	127	−0.4035	1.4226	210	−0.1380	2.3114
0.9–1.0	249	1.1310	1.8993	165	0.0756	0.8614	236	0.0999	1.0951	101	0.0680	0.9784	111	0.5015	1.7680
All	3,063	0.2445	1.6335	1,550	0.1398	1.1508	2,506	0.1652	0.9201	1,270	0.1129	1.1561	2,091	−0.1739	1.5152
		FI	0.9859		FI	0.9876		FI	0.9951		FI	0.9847		FI	0.9857

ISSN: 1297-966X