| 目标层 | Ⅰ级 | Ⅱ级 | Ⅲ级 | Ⅳ级 | Ⅴ级 | 级别 | |
| B | B1 | −0.2513 | 0.3311 | −0.2047 | −0.4698 | −0.6024 | 较轻 |
| B2 | −0.3502 | −0.0504 | 0.2291 | −0.2643 | −0.4484 | 中度 | |
| B3 | −0.2223 | 0.0293 | −0.1088 | −0.4188 | −0.5642 | 较轻 | |
| B4 | −0.2955 | 0.2643 | −0.1322 | −0.4214 | −0.5661 | 较轻 | |
| A |
| −0.2904 | 0.1140 | −0.0066 | −0.3729 | −0.5298 | 较轻 |