| across the catchment | 8 | location |
| in our time | 8 | temporal |
| for aquatic ecosystems | 4 | purpose |
| change → be → pervasive | 62 |
| change → become → pervasive | 5 |
| change → be → all-pervasive | 5 |
| negative | neutral | positive |
| 0.178 | 0.575 | 0.247 |
| Raw frequency | 72 |
| Normalized frequency | 0.360 |
| Modifier score | 0.700 |
| Perplexity | 178.182 |