[CANUFNET] Appraisal of trees and estimating the age of trees

[Jalil Hashemi]

Hi Mark,

Search Dr. Paula Pepper under growth algorithm and Allometric equations subjects and you might find many helpful research papers done in US modeling the correlation between tree size (DBH, height) and Age. There were two researches completed by two Master of Forest Conservation graduates from University of Toronto in Oakville, Canada. One published in Urban Forestry and Urban Greening.

However, as these correlations can be heavily altered by various factors (soil texture, volume, weather, available growth space, location, etc.), your estimated age will not be as accurate as taking a core sample using increment borer. So depending on how accurate you want to be in your calculation/estimation, you might choose either the equations or increment borer.

Please see the link and the attachment.

1.       Allometric equations for urban ash trees (Fraxinus spp.) in Oakville, Southern Ontario, Canada By: Claudia Alzate
Urban Forestry & Urban Greening
Volume 13, Issue 1, 2014, Pages 175-183
https://www.fs.fed.us/psw/publications/peper/psw_2014_peper001.pdf


2.       Growth Dimensions for Maple Trees in the Town of Oakville by: Suzanne Spyron

See attached

Thanks,

Jalil


Jalil Hashemi, RPF
Manager - Forestry Services
Parks & Open Space
Town of Oakville | 905-845-6601, ext.3848 | f: 905-338-4227 | www.oakville.ca<http://www.oakville.ca/>

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From: CANUFNET <canufnet-bounces at list.web.net> On Behalf Of Mark Carroll via CANUFNET
Sent: March 17, 2021 10:35 PM
To: Canadian Urban Forest Network <canufnet at list.web.net>
Cc: Mark Carroll <environment1st at rogers.com>
Subject: [CANUFNET] Appraisal of trees and estimating the age of trees

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To all

I am looking for some help. Does anyone know of a way to positively estimate the age of a tree? I have some old Acer saccharum I would estimate at 130 years of age. Is there a registry of size, area and specie of tree that can identify the age of trees? I have 2 that I am dealing with, one is 90cm DBH (130 years old) and the other is 54cm DBH (80 years old ).

Thanks for any help....
Mark Carroll
ISA Certified Arborist, Qualified Arborist Tech
TRAQ Certified
Taking our environment first
Thanks for connecting...
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