The Growth Rate and Biomass of Trees on the NCSSM Campus
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THE GROWTH RATE AND BIOMASS OF TREES ON THE NCSSM CAMPUS
Christine Ha, Annie Jin and Nelessa Lewis
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BackgroundTrees on NCSSM
Campus vs Trees in Duke Forest
What is DBH? Biomass?
Trees in urban New York
Hypothesis: The trees on our campus will have a greater DBH and Biomass because they have less competition for food and water and are regularly maintained.
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ProcedureTree Maps and Deciding our
PlotMeasuring DBH and Tree HeightBiomass formula
€
Biomass = a(DBH 2 )b
€
log(Biomassstem ) = 2.708× log(DBH )+1.333
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DataTrees of NCSSM Trees of Duke Forest
Average for Sweet Gums:
Average for Sweet Gums:
DBH-50.22 cmBiomass-1293.60 kg
• DBH-32.6 cm• Biomass-598 kg
Average for Loblolly Pines:
Average for Loblolly Pines:
DBH-39.22 cmBiomass-1296.10 kg
• DBH-16.2 cm• Biomass-67 kg
Average for White Oaks:
Average for White Oaks
DBH-69.19 cmBiomass-2805.09 kg
• DBH-28.2 cm• Biomass-400 kg
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ConclusionsThe trees of NCSSM campus, which are
closer to an urban setting, were significantly larger than the trees in Duke Forest
Because:Less competition for light and water. More space Larger Crown
More Photosynthesis Healthier Trunks
Regularly maintained by our grounds crewMulchPruning
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Further Study: Coring
ProcedureWhat these cores mean
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AcknowledgementsMr. Oishi-Researcher at Duke UniversityDr. SchmalbeckMr. BollingerUrbanization Effects on Tree Growth in
the Vicinity of New York City by Jilian W. Gregg, Clive G. Jones and Todd E. Dawson
Global Change in the Ecology of Cities by Nancy B. Grimm, Stanley H. Faeth and Nancy E. Golubiewski