Table 8 Area statistics of ecological geological vulnerability grading compared AHP with PCA in Northern Shanxi Province.

From: Ecological geological vulnerability assessment in Northern Shanxi Province (China) based on sensitivity resilience pressure (SRP) model

Ecological geological vulnerability grading

Slight vulnerability

Mild vulnerability

Moderate vulnerability

Severe vulnerability

Extreme vulnerability

Total

AHP

Area /km2

4931

22,666

7870

562

147

36,176

Proportion /%

13.63

62.66

21.75

1.55

0.41

100

PCA (n = 6)

Area /km2

6908

20,666

7123

987

493

36,176

Proportion /%

19.09

57.13

19.69

2.73

1.36

100

  1. *n = 6 represents 6 principal components were selected for the comprehensive assessment of EGVI and EGVCI.
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