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Table 2 Summary of mixed-models for the effects of climate (PET, MTCM, MI, and biome), leaf form (conifer or broadleaf), leaf phenology (evergreen or deciduous), forest types (secondary natural forest, primary natural forest, and plantation), stem density, forest age, and phylogeny groups (family, genus, and species) on L-D, S-D, and R-D allometric relationships. Bold indicates p < 0.05. Unnecessary variables were dropped based on AIC. %SS, percentage of sum squares explained; df degree of freedom, MS mean square

From: Effects of climate, biotic factors, and phylogeny on allometric relationships: testing the metabolic scaling theory in plantations and natural forests across China

 

df

MS

p

%SS

L-D scaling exponent

 MTCM

1

2.68

0.042

3.24

 Biome

3

1.35

0.101

4.87

 Stem density

1

1.87

0.089

2.26

 Residuals

117

0.63

 

89.63

S-D scaling exponent

 PET

1

0.02

0.669

0.09

 MTCM

1

0.70

0.024

2.76

 Biome

3

0.67

0.003

7.91

 Forest types

2

0.93

0.002

7.32

 Stem density

1

1.49

0.001

5.86

 Family

23

0.29

0.010

26.43

 Genus

10

0.16

0.899

6.12

 Species

24

0.14

0.985

13.30

 Residuals

59

0.13

 

30.21

R-D scaling exponent

 MI

1

0.00

0.957

0.00

 Forest types

2

0.95

0.010

8.20

 Stem density

1

1.97

0.002

8.54

 Family

20

0.42

0.017

36.16

 Genus

5

0.22

0.904

4.78

 Species

17

0.21

0.876

15.71

 Residuals

34

0.18

 

26.61