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Table 4 Parameter estimates of predictor variables on the log abundances of eight woody species

From: Modeling effects of abiotic factors on the abundances of eight woody species in the Harana forest using artificial networks, random forest, and generalized linear models

The GLM parameter estimates and significant level under each woody species

Variables

C. arabica

P. falcatus

C. macrostachyus

C. africana

S. guineense

O. capensis

D. abyssinica

F. decipenses

pH

0.41

0.03

0.5*

− 0.11

0.03

0.30

0.05

− 0.16

CEC

4.45*

− 0.46

1.58

1.52

0.16

− 0.61

0.13

0.39

P

− 0.93*

− 1.35*

− 0.4

− 1.7*

− 0.49

0.78

− 0.74

− 1.61**

K

− 1.09**

− 0.9**

0.22

− 0.6*

0.12

− 0.06

0.26

− 1.19**

Ca

1.89*

− 0.28

0.83

1.35*

− 0.16

− 1.17*

0.45

1.14*

Mg

− 242**

82.87

− 24.9

− 105*

− 3.37

− 38.15

− 50.77

− 34.67

SOM

76.64

0.82

31.6

147.8*

11.18

93.87

96.92

5.84

N

− 12.58

1.90

− 7.47

21.7*

− 7.07

− 6.39

14.73**

− 4.61

C/N

− 17.18*

21.8**

− 0.36

14.1*

8.42

32.71**

17.06*

− 1.8

Clay

3.2*

− 0.4

0.93

0.69

− 0.17

− 0.41

0.18

− 1.00

Silt

7.78*

− 2

− 2.73

− 3.68

− 0.26

− 0.59

0.69

3.75

Sand

12.36*

− 1.97

0.68

− 3.19

− 2.29

− 4.2

0.74

0.84

Temperature

− 0.6

1.2

− 1.37*

0.71

1.38*

0.07

− 0.43

0.87

Precipitation

− 4.78**

1.18*

− 1.6*

− 3.1*

0.85

2.58**

− 3.73**

− 1.94**

Elevation

− 3.05**

0.99*

− 1.5**

− 1.9*

− 0.25

0.25

− 2.34**

− 1.93*

Slope

− 0.53

− 0.19

− 0.04

− 0.2

0.01

− 0.03

0.52*

− 0.17

  1. Significant at ** < 0.01; Significant * at < 0.05