[CANUFNET] Woodland compensation/replacement

[Lepa, Chris]

Hi Geri, 

 

The City of Winnipeg uses the following guideline for compensation:

 

Natural stand trees growing in an "A" and "B" quality habitat are valued
1:1 ratio for those greater than 5cm dbh.  Trees greater than 10cm dbh
are valued at one replacement tree for every additional 7.5 cm of dbh
(ie. 17.5cm dbh = 2 replacement trees @ $600 / tree = $1200).  Natural
stand trees growing in a "C" and "D" quality habitat shall be priced for
removal only.

 

When habitat is assessed it is assigned a grade from A-D. "A" is a very
good grade while "D" is not good. The definitions for these grades
follow. 

 

 "A" Quality Habitat (Maximum sensitivity to disturbance): Virtually
undisturbed by man or recovered to an extent where community structure
and composition is intact and reflects historical natural vegetation and
wildlife habitat. Other factors include soil disturbance, a high degree
of native vegetation present and conversely, a lack of weedy or
non-native plant species.  

"B" Quality Habitat (High sensitivity to disturbance): Light to moderate
disturbance, for example, encroachment of non-native species, may have a
minimal amount of weeds but maintains a more natural condition where
native species are still the major vegetation community.  

"C" Quality Habitat (Low sensitivity to disturbance): Moderate
disturbance, a significant number of weed species that have replaced
native species, few native species present. For example, an old
agricultural clearing that has not been used in recent times and native
plant species are slowly returning, or an area that is occasionally
mowed.  

"D" Quality Habitat (Minimum sensitivity to disturbance): Heavily
disturbed site, the vegetation is dominated by weed species or absent
all together. No or very few native species present. 

If you have any further questions regarding this subject let me know.
Thanks.

 

Christopher Lepa

Urban Forestry Technical Services

986-2006 (office)

794-4275 (cell)

222-2839 (fax)

 

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________________________________

From: canufnet-bounces at list.web.net
[mailto:canufnet-bounces at list.web.net] On Behalf Of Geri Poisson
Sent: March 11, 2009 3:31 PM
To: canufnet at list.web.net
Subject: [CANUFNET] Woodland compensation/replacement

 

I am working on developing policy for replacement/compensation of lost
or impacted natural areas.  

Does anyone have any experience or references on compensation ratios for
wooded areas.  I know it is a complicated and not very well developed
field, but I am trying to boil it down to something somewhat simplified,
credible and defensible to be implemented at a municipal level.

Thanks

Geri Poisson 
(705) 645-1050

 

Geri Poisson, B.A. Hon.

Terrestrial Ecologist

Beacon Environmental

29 Manitoba St., Suite 2

Bracebridge, ON

P1L 1S4

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