Table 1 The relative contribution (%) of each of the eight root traits to the variation in root mass loss for single-species treatments and two-species mixtures (based on community-weighted mean (CWM) traits) using hierarchical partitioning analyses (HPA), and the relationships between CWM trait and mass loss for single-species and two-species mixture using linear regression

From: Root mixing effects on belowground decomposition depend on mycorrhizal type

Trait

Relative contribution (%)

Relationship

 

Single species (n = 57)

Two-species mixtures (n = 138)

Single species (n = 57)

Two-species mixtures (n = 138)

 

F

df

r

P

F

df

r

P

Root diameter (RD, mm)

31.5

12.3

11.09

1

0.41

0.002

12.70

1

0.29

<0.001

Specific root length (SRL, m g−1)

5.9

3.2

0.28

1

0.07

0.598

0.14

1

0.03

0.711

Root tissue density (RTD, g cm−3)

20.8

10.8

4.78

1

−0.28

0.033

2.04

1

−0.12

0.156

Root carbon concentration (C, mg g−1)

1.8

17.8

0.22

1

−0.06

0.641

4.38

1

−0.18

0.038

Root nitrogen concentration (N, mg g−1)

8.5

12.4

5.36

1

0.30

0.024

10.71

1

0.27

0.001

Total condensed tannins (CTs, mg g−1)

5.4

16.1

3.93

1

−0.26

0.052

15.04

1

−0.32

<0.001

Carbon to nitrogen ratio (C:N)

16.6

12.5

8.83

1

−0.37

0.004

13.84

1

−0.30

<0.001

Condensed tannins to nitrogen ratio (CTs:N)

9.6

14.9

6.42

1

−0.32

0.014

13.98

1

−0.31

<0.001

  1. Ratios are based on mass. The statistical significance of the linear regression was assessed using two-sided F-tests. Significant values are in bold. Source data are provided as a Source Data file.