Aboveground Biomass Models for Indigenous Tree Species in the Dry Afromontane Forest, Central Ethiopia

Table 5

Parameter estimates and statistics fit the AGB equations developed based on log-transformed linear models. Error: standard error; AIC akaike information criteria; RSE: residual standard error; and NA represents: not applicable or those variables represented by NA are not considered for that specific model development.

Species	M cod	Estimated parameters and respective std. error					Statistical performance
		Βo	β1	β2	β3	β4	Adj. R^2	RSE	AIC	-value	CF
E. capensis	1	−1.64	2.27 (0.19)	NA	NA	NA	0.94	0.16	−3.46	≤0.001	1.01
	2	0.08	NA	NA	1.75 (0.45)	NA	0.64	0.40	13.13	<0.05	1.08
	3	−3.40	NA	2.69 (0.68)	NA	NA	0.64	0.40	13.0	<0.005	1.08
	4	−2.77	NA	2.60 (0.70)	NA	0.60 (0.68)	0.63	0.41	13.9	<0.05	1.09
	5	−1.65	2.18 (0.38)	NA	0.10 (0.34)	NA	0.93	0.17	−1.58	≤0.001	1.01
	6	−1.24	2.21 (0.18)	NA	NA	0.40 (0.24)	0.97	0.14	−4.80	≤0.001	1.01
	7	0.65	NA	NA	1.71 (0.44)	0.75 (0.65)	0.65	0.40	13.30	<0.05	1.08
	8	−1.24	2.06 (0.34)	NA	0.17 (0.31)	0.42 (0.26)	0.95	0.15	−3.31	≤0.001	1.01
N. congesta	1	−3.11	2.61 (0.18)	NA	NA	NA	0.96	0.13	−6.38	≤0.001	1.01
	2	−12.8	NA	NA	6.82 (1.32)	NA	0.76	0.34	10.34	<0.01	1.06
	3	−4.23	NA	2.83 (0.66)	NA	NA	0.68	0.40	12.89	<0.05	1.08
	4	−0.84	NA	2.16 (0.50)	NA	1.69 (0.56)	0.85	0.27	6.73	<0.01	1.04
	5	−5.26	2.23 (2.22)	NA	1.28 (0.97)	NA	0.97	0.13	−6.66	≤0.001	1.01
	6	−2.44	2.46 (0.26)	NA	NA	0.29 (0.37)	0.96	0.14	−5.26	≤0.001	1.01
	7	−8.03	NA	NA	5.30 (1.43)	1.24 (0.69)	0.82	0.30	8.54	<0.01	1.05
	8	−4.63	2.04 (0.39)	NA	1.34 (0.98)	0.33 (0.35)	0.97	0.13	−6.08	≤0.001	1.01
R. ruspolii	1	−2.31	2.46 (0.27)	NA	NA	NA	0.84	0.30	10.91	≤0.001	1.05
	2	−1.92	NA	NA	2.69 (0.49)	NA	0.67	0.45	22.52	≤0.001	1.11
	3	−3.16	NA	2.64 (0.25)	NA	NA	0.88	0.26	6.87	≤0.001	1.03
	4	−3.25	NA	2.66 (0.28)	NA	−0.07 (0.38)	0.87	0.28	8.82	≤0.001	1.04
	5	−3.19	1.79 (0.31)	NA	1.13 (0.37)	NA	0.91	0.23	4.30	≤0.001	1.03
	6	−2.10	2.41 (0.3)	NA	NA	2.41 (0.42)	0.84	0.31	12.59	≤0.001	1.05
	7	−1.38	NA	NA	2.63 (0.45)	0.97 (0.53)	0.72	0.41	20.85	≤0.001	1.09
	8	−2.86	1.65 (0.31)	NA	1.23 (0.37)	0.42 (0.32)	0.91	0.23	4.08	≤0.001	1.03