Soil erosion |
Tree important for erosion control (5)* | — |
Tree not significant for erosion control (1) |
Nutrient recycling |
Soil subject to leaching without tree (5) | — |
Soil tight, slow to leach (1) |
Water percolation |
Sloping uplands (5) | — |
Level uplands (2) |
Swamp (1) |
Animal usage |
Tree provides unique food, rest, or nest site (5) | — |
Many similar trees in area (1) |
Habitat diversity |
Tree is rare but natural species in the area (5) | — |
Tree is common or non-indigenous species in area (1) |
Canopy and neighbors |
Tree necessary for closing forest canopy (5) | — |
Tree standing alone (5) |
Neither of above (1) |
Total: | — |