Table 3 Classification standard of ecological security
Grade | EPI value | Security level |
|---|---|---|
1 | <0.50 | Pretty safe |
2 | 0.50–0.80 | Safe |
3 | 0.81–1.00 | Moderately safe |
4 | 1.01–1.50 | Moderately risky |
5 | 1.51–2.00 | Risky |
6 | >2.00 | Very risky |
Grade | EPI value | Security level |
|---|---|---|
1 | <0.50 | Pretty safe |
2 | 0.50–0.80 | Safe |
3 | 0.81–1.00 | Moderately safe |
4 | 1.01–1.50 | Moderately risky |
5 | 1.51–2.00 | Risky |
6 | >2.00 | Very risky |
