Generic and specific stem volume models for three subtropical forest types in southern Brazil

Vibrans, Alexander C.; Moser, Paolo; Oliveira, Laio Z.; de Maçaneiro, João P.

doi:10.1007/s13595-015-0481-x

Annals of Forest Science

Table 3 Best fitted stem volume models, constructed using V _s measurements in each forest type of Santa Catarina, Brazil

From: Generic and specific stem volume models for three subtropical forest types in southern Brazil

Forest type/species	β ₀	β ₁	β ₂	SE_β0	SE_β1	SE_β2	Mn	R ² _adj*	RMSE	AIC	EF	p value
DEC
N. megapotamica	−17.72	0.95	0.69	0.271	0.031	0.060	8	0.97	0.037	−205.10	0.97	0.12
O. puberula	−17.52	0.93	0.68	0.192	0.020	0.041	8	0.98	0.029	−476.40	0.98	0.08
Generic model	−17.68	0.95	0.67	0.114	0.013	0.021	8	0.96	0.052	−1621.72	0.96	0.35
MIX
C. fissilis	−18.57	1.02	0.75	0.550	0.057	0.121	8	0.91	0.098	−123.96	0.92	0.32
C. scabra	−18.31	0.99	0.76	0.485	0.052	0.080	8	0.92	0.040	−278.36	0.92	0.61
M. elaeagnoides	−18.03	0.99	0.61	0.593	0.064	0.088	8	0.94	0.047	−183.23	0.93	0.29
O. puberula	−18.30	1.00	0.74	0.215	0.023	0.047	8	0.97	0.044	−350.44	0.97	0.03
P. myrtifolia	−18.48	1.02	0.74	0.243	0.026	0.059	8	0.97	0.050	−192.07	0.97	^a
Generic model	−17.96	0.96	0.76	0.102	0.011	0.019	8	0.94	0.057	−3468.65	0.94	0.21
DEN
A. triplinervia	−18.10	1.05	0.51	0.377	0.042	0.085	8	0.98	0.048	−218.35	0.98	0.99
C. fissilis	−17.80	1.03	0.46	0.261	0.025	0.063	8	0.95	0.088	−218.05	0.94	0.33
H. alchorneoides	−17.74	1.02	0.45	0.291	0.035	0.054	8	0.97	0.046	−221.87	0.97	0.34
M. cinnamomifolia	−17.53	0.97	0.59	0.245	0.025	0.039	8	0.93	0.056	−557.60	0.93	0.99
N. oppositifolia	−17.89	0.99	0.64	0.233	0.028	0.063	8	0.98	0.051	−214.55	0.98	0.30
O. puberula	−17.93	1.01	0.58	0.548	0.056	0.125	8	0.85	0.076	−143.48	0.86	0.20
P. angustifolia	−18.35	1.04	0.59	0.242	0.023	0.045	8	0.96	0.045	−211.67	0.96	0.65
T. guianensis	−17.86	0.95	0.82	0.576	0.054	0.129	8	0.90	0.085	−147.10	0.89	0.99
V. bicuhyba	−17.98	0.98	0.64	0.282	0.034	0.071	8	0.96	0.097	−204.01	0.96	0.05
Generic model	−17.75	0.98	0.57	0.078	0.009	0.018	8	0.92	0.096	−5593.44	0.91	0.43
Overall generic model	−17.84	0.96	0.69	0.057	0.006	0.011	8	0.92	0.084	−10279.87	0.92	0.00

Where SE_β0, SE_β1 and SE_β2 are the standard errors of estimated parameters, h _s = stem height, d = diameter at breast height, c = circumference at breast height, R ² _adj* = (pseudo) adjusted coefficient of determination
RMSE root-mean-square error, AIC Akaike’s information criterion, EF modelling efficiency, p value p value corresponding to lack of fit test
^aThere were no replications in this dataset to allow the execution of the F test for lack of fit

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ISSN: 1297-966X

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