生态退化指标IED | 等级 | 退化评价 |
Index of ecological degradation | Classification | Evaluation |
>0.75 | I | 极端退化 |
0.59~0.75 | II | 重度退化 |
0.52~0.59 | III | 中度退化 |
0.18~0.52 | IV | 轻度退化 |
<0.18 | V | 正常 |