Research and analysis
B6ii: Naturalness scores of lakes and pond ecosystems in England, 2022
Updated 1 December 2025
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| Naturalness component | habitat_type | variable | value |
|---|---|---|---|
| Biological | Lakes | Class 1 | 0.0 |
| Biological | Lakes | Class 2 | 7.51773 |
| Biological | Lakes | Class 3 | 8.93617 |
| Biological | Lakes | Class 4 | 23.829787 |
| Biological | Lakes | Class 5 | 59.7163121 |
| Chemical | Lakes | Class 1 | 38.52994014285714 |
| Chemical | Lakes | Class 2 | 18.397054285714287 |
| Chemical | Lakes | Class 3 | 23.611517428571428 |
| Chemical | Lakes | Class 4 | 14.122887285714285 |
| Chemical | Lakes | Class 5 | 5.338601042857142 |
| Hydrological | Lakes | Class 1 | 55.831904 |
| Hydrological | Lakes | Class 2 | 2.95883375 |
| Hydrological | Lakes | Class 3 | 5.74614075 |
| Hydrological | Lakes | Class 4 | 4.845625999999999 |
| Hydrological | Lakes | Class 5 | 30.6174957 |
| Physical | Lakes | Class 1 | 30.2083332 |
| Physical | Lakes | Class 2 | 11.6041666 |
| Physical | Lakes | Class 3 | 26.3472222 |
| Physical | Lakes | Class 4 | 11.5277778 |
| Physical | Lakes | Class 5 | 20.3125 |
| Biological | Ponds | Class 1 | 18.651045 |
| Biological | Ponds | Class 2 | 5.8437926 |
| Biological | Ponds | Class 3 | 19.865672 |
| Biological | Ponds | Class 4 | 13.185092 |
| Biological | Ponds | Class 5 | 42.4544 |
| Chemical | Ponds | Class 1 | 47.98387 |
| Chemical | Ponds | Class 2 | 10.88709675 |
| Chemical | Ponds | Class 3 | 7.6612905 |
| Chemical | Ponds | Class 4 | 6.8548385 |
| Chemical | Ponds | Class 5 | 26.612905 |
| Cross-cutting | Ponds | Class 1 | Not set |
| Cross-cutting | Ponds | Class 2 | Not set |
| Cross-cutting | Ponds | Class 3 | Not set |
| Cross-cutting | Ponds | Class 4 | Not set |
| Cross-cutting | Ponds | Class 5 | Not set |
| Hydrological | Ponds | Class 1 | Not set |
| Hydrological | Ponds | Class 2 | Not set |
| Hydrological | Ponds | Class 3 | Not set |
| Hydrological | Ponds | Class 4 | Not set |
| Hydrological | Ponds | Class 5 | Not set |
| Physical | Ponds | Class 1 | 36.64122 |
| Physical | Ponds | Class 2 | 13.740458 |
| Physical | Ponds | Class 3 | 8.396947 |
| Physical | Ponds | Class 4 | 18.320611 |
| Physical | Ponds | Class 5 | 22.90076 |