Adjustment factors in the LITA model for adjusting tree price downward due to damage to tree crown volume, stem circumference, or root system spread. Based on the Koch method (Bulír 2009).
| Percent damage to tree crown volume, stem circumference, or root system spread | Percent reduction in economic value |
|---|---|
| <20% | Up to 20% |
| Up to 25% | At least 25% |
| Up to 30% | At least 35% |
| Up to 35% | At least 50% |
| Up to 40% | At least 70% |
| Up to 45% | At least 90% |
| >50% | 100% |