Discover the Trees of The Forest City ...
Did you know that more than 120 species of
trees grow on City-owned property in the Forest City? By
clicking here
you can use CityMap to interactively explore the inventory of trees
in parks, on Thames Valley Golf Course and along boulevards and pathways
as well as on City land fronting homes and businesses. Note: The yellow/tan
shaded area you see is the
Ash Borer Quarantine
Zone.
Once you've created your desired map view using the CityMap service
- say by searching for an address - you'll see trees shown as green dots.
By clicking on the "Identify" tab at the top of the map, then clicking on
the green dot representing any tree of interest, you will be able to view
the the following information for any tree in the
inventory listing.
- Common name
- Latin (scientific) name
- Trunk diameter (cm)
- Year observed
- Inventory number (you may want to cross-reference this number if
you are contacting the City of London's
Forestry Group about
a concern or problem with a tree on municipal land)
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Trees provide countless benefits to our community
beyond their aesthetic appeal. For example, through their moderation of
the local climate alone trees can save up to 10% of energy consumption.
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Trees have been located on the map as accurately as the technology allows
and for optimal viewing the recommended scale is 250 metres. The CityMap
"Tree inventory" map view will automatically display a 250 metres wide view
of the corner of Dundas and Wellington Streets. Using the menu you can enter
any address or location you wish and customize map views up to 2 kilometers.
Like other elements of the City's infrastructure systems (roads, sidewalks, sewer/water
pipes and so on) trees require ongoing care and maintenance. Supporting and improving
the urban tree canopy delivers a wide range of economic, ecological and social benefits
to the community. As "living filters" trees play an essential role in removing pollution
from the air we breath and the water we drink. They also provide organic material
to fertilize soil, serve as a source of food and shelter for wildlife, reduce soil
erosion and storm water runoff and beautify our homes with comforting shade in summer
and shelter from winter winds.
A tree can grow to manufacture five pounds of pure oxygen per day, consume carbon
dioxide to fight the "greenhouse effect" and provide the cooling equivalent of ten
room-size air conditioning units.
Please see our August 11, 2008
media release for information
on two new initiatives that will help Londoners help trees.
The City of London tree inventory was undertaken in the summer of 2002 and is
regularly updated to reflect spring and fall tree planting programs as well as the
removal of dead or hazardous trees. The data assists the City's Forestry Group in
managing its year-round maintenance program as well as planning what tree species
to plant and where.
Trunks are measured at the standard diameter height of 1.4 meters (4.5 feet)
above the ground. Leaning trees, multi-stemmed trees and other abnormal conditions
are measured using professional appraisal techniques.
For London residents a practical use of the trunk measurement is being able to
assess tree root impacts for any planned construction. Every effort should be made
to stay 30 cm away from the trunk for each 3 cm of trunk diameter.
Forest City tree inventory facts as of September 1, 2002 include the following:
- Number of street trees on city property 123,359
- Number of trees in managed park areas 32,101 - does not include unmanaged
"natural" areas such as Meadowlily Woods, Medway Forest and along the banks
of the Thames River.
- Of the top 10 trees, five are maples (Norway Maple, Silver Maple, Sugar
Maple, Norway Schwedler Maple and Manitoba Maple) and represent 33% of the total
tree population in the City of London's inventory.
