Table 6 Statistical parameters of the principal components from the N, P, N:P ratios, biomass, and environmental variables in S. superba forest sites (n = 30 for plant samples and n = 5 for soil samples).

From: Nitrogen and phosphorus stoichiometry of Schima superba under nitrogen deposition

Parameters

Principal component

1

2

3

4

Eigenvalue

6.987

3.64

2.48

1.72

% Total of variance

41.10

21.42

14.61

10.21

Total cumulative

41.10

62.52

77.13

87.25

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