A healthy urban forest is critical for any city that prioritises its environmental and social outcomes.
Urban Forest Strategy - Rationale
Action Plan Executive summary Future urban forests Geelong's strategy Geelong's urban forest Glossary Introduction Issues Opportunities Rationale References
Why is Geelong's urban forest important?
A healthy urban forest is critical for any city that prioritises its environmental and social outcomes. Geelong’s urban forest is a valuable community asset that crosses public and private boundaries enhancing the local environment and providing a green network of spaces for the community to utilise.
Geelong’s urban forest is important as it provides the following benefits:
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Did you know...
- Geelong’s public urban trees are worth over $370 million.
- Geelong has 75 268 street trees and over 45 000 urban park trees.
- Geelong’s street trees store 19 000 tonnes of carbon and sequester over 1 300 tonnes per year.
- Stormwater run-off is 62% higher from asphalt than from turf or tree pits.
- The public urban forest alone absorbs around four Olympic sized swimming pools of stormwater each year preventing run-off into the bay.
- The presence of street trees can improve residential property values by up to 30%.
- Large healthy trees can remove between 60 and 70 times more air pollution than smaller trees.
- Temperatures can be between 5o Celsius and 20o Celsius cooler underneath tree canopies.
- Up to 80% of the cooling effect of trees is directly from shading.
Surface Temperature Reduction Examples
Example 1: Orbit Drive Whittington
| Time: | 4:20pm | Date: | 24 February 2015 | Ambient Temperature: | 33 degrees Celsius |
Unshaded roadway is 15 degrees Celsius hotter than asphalt shaded by a tree.
| Measurement Object | Maximum Temperature (oC) | Minimum Temperature (oC) | Emissions | Reflected Temperature (oC) | Average Temperature (oC) |
| Profile line (P1) | 45.1 | 30.5 | 1.0 | 20.0 | 41.4 |
Example 2: Myers Street Haymarket Carpark
| Time: | 5:00pm | Date: | 24 February 2015 | Ambient Temperature: | 31 degrees Celsius |
Asphalt shaded by trees is 19 degrees Celsius cooler than unshaded asphalt.
| Measurement Objects | Temperature (oC) | Emissions | Reflected Temperature (oC) | Average Temperature (oC) |
| Measure point 1 | 28.2 | 1.00 | 20.0 | Shaded |
| Measure point 2 | 46.8 | 1.00 | 20.0 | Unshaded |
| Measure point 3 | 27.8 | 1.00 | 20.0 | Shaded |
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