Structural measure | Sacramento | Chicago | ||||||
---|---|---|---|---|---|---|---|---|
City | Suburban | Rural | Region | City | Suburban | Rural | Region | |
Pop. density (person/ha) | 16.7 | 16.4 | 0.6 | 4.4 | 46.1 | 12.4 | 9 | 17.6 |
Tree canopy cover (%) | 13 | 15.4 | 5.2 | 7.4 | 11 | 23 | 19 | 19 |
Tree density (tree/ha) | 73.4 | 63.8 | 9.8 | 23.4 | 68.5 | 169.5 | 171 | 151.7 |
Basal area (m2/ha) | 13.4 | 4.5 | 0.9 | 2.6 | 11.8 | 18.7 | 19.2 | 17.6 |
No. species sampled | 118 | 108 | ||||||
Trees/capita | 4.4 | 3.9 | 15.2 | 5.3 | 1.5 | 13.7 | 19.1 | 8.6 |
Street trees/capita | 0.29 | — | — | — | 0.15 | 0.37 | 0.25 | 0.25 |
Off-street/on-street | 14.1 | — | — | — | 8.9 | 36 | 75.9 | 33.5 |