Summary of explanatory variables measured.
| Environment | Whole tree | Within crown |
|---|---|---|
| Distance to adjacent buildings | Species identity | Regrowth type |
| Adjacent building height | Crown width (two dimensions) | Branch origin height |
| % exposed soil under crown | Crown height | Parent stem diameter |
| Trim type, V or side (light exposure) | Crown base height | Regrowth inclination |
| Azimuth of V-trim (light exposure) | DBH | Regrowth azimuth |
| Stem distance (between V-trim main stems - light exposure) | Regrowth length (annual and total length) |