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Forest Ecosystems

Table 2 Qualification index for the 8 best local equations for the 13 groups of species

From: Local and generalized height-diameter models with random parameters for mixed, uneven-aged forests in Northwestern Durango, Mexico

Equation

Qualification index (QI ij )

QI total

%

R 2

RMSE

Bias

BIC

Bates and Watts (1980)

0

1

1

1

3

5.8

Meyer (1940)

0

1

0

3

4

7.7

Stage (1975)

1

3

0

4

8

15.4

Logarithmic

0

0

0

1

1

1.9

Wykoff et al. (1982)

1

1

1

2

5

9.6

Bertalanffy-Richards

6

4

4

1

15

28.8

Hossfeld (1822)

3

1

7

0

11

21.2

Weibull (1951)

2

2

0

1

5

9.6

  1. QI total = ΣΣQ ij ; where QI ij is the qualification for the j-th goodness of fit criterion in the i-th group of species.
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