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
|
