Table 1 Significance tests of the effects of SOM content and translocation warming on bacterial and fungal community structure with three different statistical approaches.

From: High stability and metabolic capacity of bacterial community promote the rapid reduction of easily decomposing carbon in soil

 

Microbes

Adonisa

ANOSIMb

MRPPc

  

F

pd

R

pd

δ

pd

SOM

Bacteria

26.90

<0.001

0.902

<0.001

0.359

<0.001

Fungi

11.98

<0.001

0.64

<0.001

0.18

<0.001

Translocation warming

Bacteria

4.85

<0.001

0.11

<0.001

0.039

<0.001

Fungi

8.20

<0.001

0.29

<0.001

0.075

<0.001

  1. All three tests are nonparametric multivariate analysis based on dissimilarities among samples.
  2. aPermutational multivariate analysis of variance using distance matrices. Significance tests were carried out using F-tests based on sequential sums of squares from permutations of the raw data.
  3. bAnalysis of similarities. Statistic R is based on the difference of mean ranks between groups and within groups. The significance of observed R is assessed by permuting the grouping vector to obtain the empirical distribution of R under the null model.
  4. cMulti-response permutation procedure. Statistic δ is the overall weighted mean of within-group means of the pairwise dissimilarities among sampling units. The significance test is the fraction of permuted δ that is less than the observed δ.
  5. dp-Value of corresponding significance test.
Back to article page