| Similarity | Rank | |
|---|---|---|
| Soil | 0.895 | 21080 |
| soils | 0.841 | 13363 |
| Sediment | 0.791 | 95198 |
| Groundwater | 0.783 | 66053 |
| Vegetation | 0.776 | 63923 |
| Nutrient | 0.756 | 56062 |
| Crops | 0.754 | 55845 |
| soil | 0.749 | 2848 |
| Ecosystems | 0.730 | 73560 |
| Erosion | 0.724 | 67301 |
| loam | 0.718 | 60535 |
| Plants | 0.716 | 16485 |
| Nitrogen | 0.710 | 45976 |
| Limestone | 0.708 | 47555 |
| topsoil | 0.706 | 46673 |
| Drought | 0.702 | 53807 |
| subsoil | 0.698 | 84727 |
| Grains | 0.698 | 50241 |
| calcareous | 0.697 | 93129 |
| Forests | 0.695 | 32033 |
| Precipitation | 0.695 | 92731 |
| sediments | 0.694 | 31409 |
| Phosphorus | 0.691 | 67996 |
| Habitats | 0.690 | 83377 |
| Manure | 0.689 | 92894 |