Table 2 Allometric model evaluation with the Akaike information criterion (AIC) and root-mean-square error (RMSE) for commercial height (CH) and diameter at breast height (DBH) of “Bolaina” (Guazuma crinita) trees, based on DBH and age, respectively, from 1 to 10 years in the sampled areas of the San Martin and Ucayali regions.

From: Soil characteristics and allometric models for biometric characteristics and nutrient amounts for high yielding “Bolaina” (Guazuma crinita) trees

Models

Commercial height (m)

Diameter at breast height (cm)

AIC

RMSE

AIC

RMSE

1

26.68

0.33

− 41.73

0.12

2

− 33.76

0.13

− 42.03

0.12

7

20.92

0.30

− 36.73

0.13

8

15.53

0.28

− 34.76

0.14

9

− 19.15

0.16

− 41.64

0.12

10

− 13.30

0.18

− 41.73

0.12

Best model formula*

\(Ln \left(DBH\right)=2.4259+0.1012 *{Years}^{0.5}-0.0632* Years\), R2 = 0.79

\(Ln \left(DBH\right)=2.4259+0.1012 *{Years}^{0.5}-0.0632* Years\), R2 = 0.79

\(Ln \left(DBH\right)=2.4259+0.1012 *{Years}^{0.5}-0.0632* Years\), R2 = 0.79

\(Ln \left(DBH\right)=2.4259+0.1012 *{Years}^{0.5}-0.0632* Years\), R2 = 0.79

  1. *The selected models were significant by the F-test at 0.05. Values in bold indicate the best model, with the lower AIC and RMSE values.
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