Environmental benefits for surviving trees of two species of trees in Brooklyn, OH, for 2009 are presented in U.S. dollars per tree.
| Annual benefits | Hawthorn | Honeylocust | P value @ 0.05y | ||
|---|---|---|---|---|---|
| mean $/tree | SEz | mean $/tree | SEz | ||
| Energy | $26 | 0.98 | $63 | 0.49 | .00001 |
| CO2 | $3 | 0.06 | $10 | 0.02 | .00001 |
| Air quality | $5 | 0.19 | $11 | 0.10 | .00001 |
| Storm water | $15 | 0.79 | $83 | 1.40 | .00001 |
| Aesthetic/other | $14 | 0.17 | $219 | 0.91 | .00001 |
| Total | $57 | 2.40 | $430 | 3.40 | .00001 |