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Carbon Sequestration
• Total carbon sequestered to date: over 80 kg
• Oakville Trafalgar H.S. and Appleby College sequestered 20.075kg and 19.62kg, respectively
• This is significantly more than other schools (0-8kg)
• Environmental stewardship of site and initiative/effort are important to increasing carbon storage
Basswood19%
Bur Oak20%
Hop Tree10%
Sugar Maple32%
White Spruce20%
Total Carbon Sequestered in (kg) for five tree species on the P4C sites
Health
% A %D %I %LB %HB % M %S0
102030405060708090
Health status of P4C tree species planted in 2008
BasswoodBur OakHop TreeSugar MapleWhite Spruce
Health Status
% o
f tre
es
% A %D %I %LB %HB % M %S0%
20%
40%
60%
80%
100%
120%
Health status of P4C tree species planted in 2010
BasswoodBur OakHop TreeSugar MapleWhite Spruce
Health Status
% o
f tre
es
% A %D %I %LB %HB % M %S0
102030405060708090
100
Health status of P4C tree species planted in 2011
BasswoodBur OakHop TreeSugar MapleWhite Spruce
Health Status
% o
f tre
es • Tree loss due to mortality or tree removal from site was 4%
• Majority of trees are healthy/alive• Low browsing, sick/infested, dead/
dying, basal sprouting percentages were recorded
Average change in crown area (m2) for P4C tree species planted 2008
Applewood Heights Herb Campbell Appleby College Oakville Trafalgar Christ the King0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Figure 6: Average change in crown area (m2) for P4C tree species planted 2008
BasswoodBur OakHop TreeSugar MapleWhite Spruce
School
Aver
age
chan
ge in
crow
n ar
ea (m
2)
Tree Canopy and Crown Area
View of Toronto’s tree canopy(Credit: City of Toronto)
Tree canopy cover for mature tree species in P4C program
Species Spread (m) Area (m2) Area (m2)/P4C Site
Basswood 13 169 507
Bur Oak 26 676 2028
Hop Tree 3-5 9-25 27-75
Sugar Maple 13 169 507
White Spruce 7 49 147
Total 3216-3264 (3.2-3.3km2)
Conclusions • More long-term monitoring plots should be
established so that trends may be studied and to see if results are replicated
• Environmental stewardship may significantly increase growth of trees which significantly increases carbon storage
• We can study climate change impacts on trees and provide valuable environmental education at the same time
• Young citizen scientists’ data is important and P4C helps to spread environmental awareness
Measuring Our Resources
• Students measure and monitor the trees already located on their schoolyard grounds
• Trees are tagged and numbered
• Measurements taken include height, DBH, and crown width. Tree health is also assessed and tree species are identified
• Students create a sketch map of the trees that were measured
• Data is inputted into database
Trees are numbered and tagged...
…and then growth measurements are taken
Height Measurement using clinometers
Tree ID and Health StatusSTATUS CODEA: AliveB: Dead S: StandingL: LeaningP: Prone
HEALTH CODEMechanical DamageNN: NoneBD: Bark DamageTB: Significant Top BreakageRD: Visible Root DamageCG: Complete Girding
DefectsNN: NoneDV: Minor Damage/VandalismAB: Animal BrowsingII: Insect InfestationSD: Symptom of Disease
GPS/GIS
Thank you!
ACER905-891-6004
