[CANUFNET] Woodlot valuations

Wed Sep 26 14:44:26 EDT 2012

I think the approval authority is more interested in the value that the
plantation contributes to the municipality as a whole rather than the
value to the property alone which could be negative if the stand is a
constraint to development.

Bohdan Kowalyk, R.P.F.
OMNR Aurora District Forester
905-713-7714

________________________________

From: canufnet-bounces at list.web.net
[mailto:canufnet-bounces at list.web.net] On Behalf Of Alex Satel
Sent: Wednesday, September 26, 2012 12:31 PM
To: 'Canadian Urban Forest Network'
Subject: Re: [CANUFNET] Woodlot valuations

Geri,

The quick and dirty answer: an 'ISA plant appraisal' doesn't really
exist. The ISA PVAC (Plant Appraisal and Valuation Committee) was/is
involved as one of the contributors to the CTLA guides (among other
groups such as ASCA), but there is not an ISA method per se. Anyone
asking probably just doesn't know that it should really be referred to
as CTLA, and that's what they're really asking for. 

Now, what CTLA method they are after is another story. There are several
appraisal methods outlined in the Guide, and it's a matter of choosing
the most reasonable method for the situation. It's true (IMO) that the
Trunk Formula Method (which is what I believe you're generally referring
to) is not well-suited to many situations, so something like timber
value may actually be a reasonable choice. Alternately, when we've
appraised or reviewed appraisals of plantations that for whatever reason
must be done using the TFM, we would typically expect to use a fairly
low (maybe 10-15%) location rating, thus accounting for the fact that
it's not an appraisal of an individual tree that might have a high
contribution to the site. 

Another method (which was recently brought to my attention, as I had
overlooked it in the guide) is the Contributory Value - basically, how
much does the plantation contribute in terms of value to the property?
It's outlined on Pg. 100 if you have the 9th edition of the guide handy.

Like others have said, cost of cure or replacement cost could also work.

I'm sure this muddies the waters a bit, but appraisal can be tricky. I
think they key is to come up with something that seems reasonable and is
defensible. I'm sure others on the list will also have more to say on
the matter. 

Cheers,

Alex

Alex Satel, MFC
ISA Certified Arborist ON-1353A
Urban Forest Innovations Inc.
1248 Minnewaska Trail
Mississauga, ON  L5G 3S5
T: (905) 274-1022
asatel at ufis.ca <mailto:asatel at ufis.ca> 
www.urbanforestinnovations.com <http://www.urbanforestinnovations.com/> 

From: canufnet-bounces at list.web.net
[mailto:canufnet-bounces at list.web.net] On Behalf Of Geri Poisson
Sent: September-25-12 1:56 PM
To: canufnet at list.web.net
Subject: [CANUFNET] Woodlot valuations

Hello all,
A landowner/developer is looking to remove trees from their land and the
approval authority wants an ISA plant appraisal for the trees to be
removed.
This is fine for individual trees,  but there are some hectares of
conifer plantations.  
I am looking for an accepted methodology for appraising these trees for
the town.  Is there a methodology for plantations that is similar to the
CTLA Plant Appraisal Guide.  I don't believe an appraisal of the value
of 
the timber is what they are looking for.  This would be in regards to
compensation purposes.

Thank you,

Geri Poisson, B.A. (Hon) / Certified Arborist, Terrestrial Ecologist
BEACON ENVIRONMENTAL
126 Kimberley Avenue, Bracebridge, ON P1L 1Z9
T)  705.645.1050 x22  F) 705.645.6639  C) 705.828.1196
www.beaconenviro.com <http://www.beaconenviro.com/> 
* Please consider the environment before printing this email.

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