| Similarity | Rank | |
|---|---|---|
| biodiversity | 0.878 | 13376 |
| ecology | 0.864 | 15032 |
| environmental | 0.839 | 1795 |
| ecosystems | 0.830 | 13909 |
| conservation | 0.804 | 4776 |
| biosphere | 0.784 | 44340 |
| hydrological | 0.773 | 62436 |
| habitat | 0.764 | 7100 |
| wetland | 0.764 | 19211 |
| biota | 0.759 | 95999 |
| sustainability | 0.754 | 5513 |
| habitats | 0.753 | 13856 |
| desertification | 0.750 | 69099 |
| ecologically | 0.749 | 31144 |
| Ecological | 0.747 | 34223 |
| wetlands | 0.742 | 14228 |
| estuarine | 0.738 | 74970 |
| hydrology | 0.733 | 60846 |
| species' | 0.728 | 65327 |
| hydrologic | 0.726 | 70564 |
| ecosystem | 0.725 | 9180 |
| aquatic | 0.725 | 14757 |
| sustainable | 0.723 | 3070 |
| anthropogenic | 0.723 | 46957 |
| urbanization | 0.722 | 34036 |