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

Table 6 Bias and standard error of the estimate of total volume by relative height (RH) class for five tree species using Eq. 2

RH	n	Brutian pine			Lebanon cedar			Cilicica fir			Scots pine			Black pine
RH	n	B (m³)	SEE (m³)	n	B (m³)	SEE (m³)	n	B (m³)	SEE (m³)	n	B (m³)	SEE (m³)	n	B (m³)	SEE (m³)
0.0–0.1	336	−0.0005	0.0057	176	0.0001	0.0026	278	−0.0002	0.0078	136	−0.0003	0.0022	241	0.0003	0.0052
0.1–0.2	327	−0.0014	0.0052	141	−0.0004	0.0028	257	−0.0010	0.0041	135	−0.0003	0.0030	216	0.0002	0.0034
0.2–0.3	295	0.0001	0.0034	159	−0.0004	0.0023	238	−0.0001	0.0027	126	0.0005	0.0022	220	0.0002	0.0028
0.3–0.4	308	0.0013	0.0058	156	0.0005	0.0030	252	0.0002	0.0032	129	0.0015	0.0045	220	−0.0006	0.0038
0.4–0.5	299	0.0023	0.0082	144	0.0012	0.0044	248	0.0003	0.0039	132	0.0018	0.0053	220	−0.0009	0.0042
0.5–0.6	320	0.0018	0.0086	154	0.0011	0.0052	248	0.0010	0.0037	127	0.0015	0.0044	210	−0.0008	0.0061
0.6–0.7	313	0.0012	0.0076	152	0.0009	0.0042	248	0.0009	0.0029	128	0.0005	0.0037	213	−0.0007	0.0068
0.7–0.8	313	−0.0003	0.0046	155	0.0004	0.0026	250	0.0004	0.0025	129	−0.0006	0.0031	224	−0.0005	0.0078
0.8–0.9	303	0.0001	0.0023	148	−0.0002	0.0017	251	0.0001	0.0016	127	−0.0005	0.0019	210	0.0006	0.0047
0.9–1.0	249	0.0004	0.0010	165	−0.0001	0.0005	236	−0.0001	0.0007	101	−0.0001	0.0005	111	0.0006	0.0013
All	3,063	0.0005	0.0058	1,550	0.0003	0.0032	2,506	0.0001	0.0038	1,270	0.0004	0.0033	2,091	−0.0002	0.0050
		FI	0.9912		FI	0.9923		FI	0.9954		FI	0.9876		FI	0.9915

ISSN: 1297-966X