Table 1 Two-way ANOVA results of Ligularia virgaurea density (D) and functional group (G) and post-hoc tukey’s HSD results of L. virgaurea density on nitrogen (N), phosphorus (P) and carbon (C) contents, and C: N, C: P and N: P ratios of plants.

From: The ecological stoichiometry shifts induced by Ligularia virgaurea invasion in alpine meadows of the Qinghai-Tibetan plateau

Treatments

df

N

P

C

C: N

C: P

N: P

F

P

F

P

F

P

F

P

F

P

F

P

Two-way ANOVA

L. virgaurea density (D)

3

18.42

<0.001

17.26

<0.001

25.38

<0.001

1.19

0.32

20.08

<0.001

29.52

<0.001

Functional group (G)

4

1212.55

<0.001

249.97

<0.001

48.82

<0.001

378.72

<0.001

81.16

<0.001

130.26

<0.001

D×G

11

4.28

<0.001

2.26

0.023

7.72

<0.001

4.39

<0.001

3.39

0.001

1.74

0.089

Treatments

P value

N

P

C

C: N

C: P

N: P

Tukey’s HSD

LN-LL

0.829

1

0.058

0.258

0.605

0.967

LN-LM

0.001

<0.001

0.921

0.004

0.001

<0.001

LN-LH

<0.001

0.004

<0.001

0.079

<0.001

<0.001

LL-LM

0.011

<0.001

0.175

0.286

<0.001

<0.001

LL-LH

<0.001

0.002

<0.001

0.921

<0.001

<0.001

LM-LH

0.001

0.042

<0.001

0.652

0.727

0.923

  1. Note: LN: No L. virgaurea; LL: Low density of L. virgaurea; LM: Moderate density of L. virgaurea; LH: High density of L. virgaurea.
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