Summary of mean tree height (m), crown radius (m), and canopy volume (m3) for aged-out trees and replacement trees per size class for each scenario. “Aged-out trees” refers to trees removed between baseline and future scenarios. “Replacement trees” are new trees provided to future scenarios in place of aged-out trees. The percent change (%) between aged-out and replacement trees’ measures was also calculated: ([Aged-out – Replacement] ÷ |Aged-out|) × 100%.
Measure | Scenario | Size class | Aged-out trees mean | Replacement trees mean | Percent change |
---|---|---|---|---|---|
Tree height (m) | S1 2050: Existing policy | Large | 16.1 | 19.1 | +19% |
Medium | 9.23 | 8.20 | −11% | ||
Small | 6.46 | 4.29 | −34% | ||
S2 2050: Existing policy + CA trees | Large | 16.0 | 13.8 | −14% | |
Medium | 9.24 | 8.99 | −3% | ||
Small | 6.60 | 5.39 | −18% | ||
S3 2050: Target building shading | Large | 16.0 | 13.8 | −14% | |
Medium | 9.24 | 8.99 | −3% | ||
Small | 6.60 | 5.39 | −18% | ||
S4 2050: Maximize tree canopy | Large | 14.2 | 16.0 | +13% | |
Medium | 8.97 | 9.24 | +3% | ||
Small | 6.82 | 5.43 | −26% | ||
Crown radius (m) | S1 2050: Existing policy | Large | 5.20 | 4.88 | −6% |
Medium | 2.88 | 2.74 | −5% | ||
Small | 2.04 | 1.43 | −30% | ||
S2 2050: Existing policy + CA trees | Large | 5.15 | 4.62 | −10% | |
Medium | 2.89 | 3.00 | +4% | ||
Small | 2.08 | 1.79 | −14% | ||
S3 2050: Target building shading | Large | 5.15 | 4.62 | −10% | |
Medium | 2.89 | 3.00 | +4% | ||
Small | 2.08 | 1.79 | −14% | ||
S4 2050: Maximize tree canopy | Large | 5.18 | 4.74 | −8% | |
Medium | 2.90 | 2.99 | +3% | ||
Small | 2.16 | 1.80 | −17% | ||
Canopy volume (m3) | S1 2050: Existing policy | Large | 670.00 | 554.00 | −17% |
Medium | 57.80 | 50.10 | −13% | ||
Small | 30.60 | 6.72 | −78% | ||
S2 2050: Existing policy + CA trees | Large | 671.00 | 307.00 | −54% | |
Medium | 59.00 | 72.40 | +23% | ||
Small | 33.20 | 13.20 | −60% | ||
S3 2050: Target building shading | Large | 671.00 | 307.00 | −54% | |
Medium | 59.00 | 72.40 | −23% | ||
Small | 33.20 | 13.20 | −60% | ||
S4 2050: Maximize tree canopy | Large | 706.00 | 326.00 | −54% | |
Medium | 60.20 | 70.60 | +17% | ||
Small | 37.20 | 13.50 | −64% |