Annals of Forest Science

Table 5 Parameter estimates and goodness-of-fit statistics for the allometric models used to estimate the canopy fuel variables

From: Modelling canopy fuel variables in Pinus pinaster Ait. and Pinus radiata D. Don stands in northwestern Spain

Canopy fuel variable	P. pinaster					P. radiata
Canopy fuel variable	Parameter	Estimate	R ²	RMSE	Condition number	Parameter	Estimate	R ²	RMSE	Condition number
CFL	λ ₀₁	0.02817	0.997	0.0184	22.3	λ ₀₁	0.02862	0.991	0.0277	47.9
	λ ₁₁	1.013				λ ₁₁	0.9367
	λ ₁₁	1.013				λ ₂₁	0.04685
CBD_e	λ ₀₂	0.01976	0.981	0.00537	33.3	λ ₀₂	0.05513	0.944	0.00545	94.6
	λ ₁₂	1.004				λ ₁₂	0.9494
	λ ₂₂	−0.5851				λ ₂₂	0.02968
	λ ₂₂	−0.5851				λ ₃₂	−0.9780
CBH_e	λ ₀₃	0.2037	0.890	0.440	21.2	λ ₀₃	0.1641	0.907	0.793	26.8
CBH_e	λ ₁₃	1.243	0.890	0.440	21.2	λ ₁₃	1.275	0.907	0.793	26.8
CFL	λ ₀₄	0.02798	0.997	0.0182	22.3	λ ₀₄	0.02706	0.991	0.0275	47.9
	λ ₁₄	1.014				λ ₁₄	0.9449
	λ ₁₄	1.014				λ ₂₄	0.0509
CBD_a	λ ₀₅	0.004207	0.614	0.0397	59.0	λ ₀₅	0.001106	0.928	0.00791	48.3
	λ ₁₅	0.7333				λ ₁₅	0.7479
	λ ₂₅	0.1751				λ ₂₅	0.3015
CBH_a	λ ₀₆	0.1213	0.830	0.944	22.2	λ ₀₆	0.09679	0.960	0.804	28.5
CBH_a	λ ₁₆	1.596	0.830	0.944	22.2	λ ₁₆	1.536	0.960	0.804	28.5

Canopy fuel variables are defined in Table 4

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ISSN: 1297-966X

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