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<p>Storing topsoil in lifts is very unlikely to take place, and it
is far from clear that it would work effectively even if it was
done. The bulk handling of soils requires heavy machinery and
soils are a complex structure. In the late 70's I looked at
conservation efforts in the UK to carefully dig up entire habitats
in large deep chunks of soil and carefully replace them in a new
location, in an effort to conserve the grassland ecosystem under
threat. It was extremely time consuming, very expensive, and my
recollection was that ultimately, it had very variable success
because the soil evolution is tied to the micro site conditions.</p>
<p> For street trees the main issues will be the volume available
for root growth, soil quality, quantity and the amount of care
taken when installing the soil and the tree, plus, the condition
of adjacent soil profiles. All of this is well known and well
proven by Jim Urban's work. Nothing new but the knowledge is
seldom applied by designers, engineers, and their cohort so we get
crappy designs and equally crappy results. If we can one day get
the design professions to do better we could solve some of the
street tree issues.<br>
</p>
<pre class="moz-signature" cols="72">On Behalf of Dunster and Associates Environmental Consultants Ltd.
Dr. Julian A Dunster R.P.F., R.P.P.., M.C.I.P., ISA Certified Arborist,
ASCA Registered Consulting Arborist # 378,
ISA Tree Risk Assessment Qualified
Honourary Life Member ISA + PNWISA
North American distributor for Rinntech
<a class="moz-txt-link-abbreviated" href="http://www.dunster.ca">www.dunster.ca</a>
<a class="moz-txt-link-abbreviated" href="http://www.treelaw.info">www.treelaw.info</a>
<a class="moz-txt-link-abbreviated" href="http://www.rinntech.info">www.rinntech.info</a>
</pre>
<div class="moz-cite-prefix">On Tue/10/5/2021 10:55 AM,
pwassenaer1022--- via CANUFNET wrote:<br>
</div>
<blockquote type="cite"
cite="mid:010101d7ba12$3e10e030$ba32a090$@rogers.com">
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<p class="MsoNormal">Not in my experience but perhaps others on
this list could indicate if they have seen it in their
jurisdictions.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Philip<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span lang="EN-US">Philip van Wassenaer,
B.SC., MFC<o:p></o:p></span></b></p>
<p class="MsoNormal">Urban Forest Innovations Inc.<o:p></o:p></p>
<p class="MsoNormal">1331 Northaven Drive<o:p></o:p></p>
<p class="MsoNormal">Mississauga ON L5G 4E8<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Tel: (905) 274-1022<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Cell: (647) 221-3046<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Fax: (905) 274-2170<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img
style="width:1.5937in;height:.7604in" id="Picture_x0020_2"
src="cid:part1.4lMtFKso.MmSGU6yL@dunster.ca" alt="UFI new
logo very small" class="" width="153" height="73"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><a
href="http://www.urbanforestinnovations.com/"
moz-do-not-send="true">www.urbanforestinnovations.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span
lang="EN-US"> CANUFNET
<a class="moz-txt-link-rfc2396E" href="mailto:canufnet-bounces@list.web.net"><canufnet-bounces@list.web.net></a> <b>On Behalf Of </b>Naomi
Zurcher via CANUFNET<br>
<b>Sent:</b> October 5, 2021 2:31 AM<br>
<b>To:</b> Canadian Urban Forest Network
<a class="moz-txt-link-rfc2396E" href="mailto:canufnet@list.web.net"><canufnet@list.web.net></a><br>
<b>Cc:</b> Naomi Zurcher <a class="moz-txt-link-rfc2396E" href="mailto:treerap@sprintmail.com"><treerap@sprintmail.com></a><br>
<b>Subject:</b> Re: [CANUFNET] Trees and boulevards<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Philip - as I had indicated, I thought this
should at least be possible with Public Infrastructure
projects.<o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Is it being required for projects on
public lands?<o:p></o:p></p>
<div>
<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">On Oct 4, 2021, at 10:37 AM,
pwassenaer1022--- via CANUFNET <<a
href="mailto:canufnet@list.web.net"
moz-do-not-send="true" class="moz-txt-link-freetext">canufnet@list.web.net</a>>
wrote:<o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">Ha ha ha….entirely possible but
who will impose that and enforce it on the
development community?<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">In my experience the development
community has an inordinate amount of sway over
municipalities and things related to development.
Until that changes, these things will remain
“possible” but will not be implemented…<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Philip<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<div>
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span
class="apple-converted-space"><span
lang="EN-US"> </span></span><span
lang="EN-US">CANUFNET <<a
href="mailto:canufnet-bounces@list.web.net"
moz-do-not-send="true"
class="moz-txt-link-freetext">canufnet-bounces@list.web.net</a>><span
class="apple-converted-space"> </span><b>On
Behalf Of<span class="apple-converted-space"> </span></b>Naomi
Zurcher via CANUFNET<br>
<b>Sent:</b><span
class="apple-converted-space"> </span>October
4, 2021 10:08 AM<br>
<b>To:</b><span class="apple-converted-space"> </span>Canadian
Urban Forest Network <<a
href="mailto:canufnet@list.web.net"
moz-do-not-send="true"
class="moz-txt-link-freetext">canufnet@list.web.net</a>><br>
<b>Cc:</b><span class="apple-converted-space"> </span>Naomi
Zurcher <<a
href="mailto:treerap@sprintmail.com"
moz-do-not-send="true"
class="moz-txt-link-freetext">treerap@sprintmail.com</a>><br>
<b>Subject:</b><span
class="apple-converted-space"> </span>Re:
[CANUFNET] Trees and boulevards</span><o:p></o:p></p>
</div>
</div>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Why can’t municipalities require
that any and all construction must remove existing
topsoil in lifts and thoughtfully store that topsoil
for re-installation on the same site. This should be
entirely possible at least on public infrastructure
projects.<o:p></o:p></p>
</div>
<div>
<div>
<p class="MsoNormal"><br>
<br>
<br>
<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal">On Oct 1, 2021, at 1:34 PM,
Oliver Reichl via CANUFNET <<a
href="mailto:canufnet@list.web.net"
moz-do-not-send="true"
class="moz-txt-link-freetext">canufnet@list.web.net</a>>
wrote:<o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<div>
<div>
<p class="MsoNormal"><span
style="color:#313131">“Nowadays developers
remove all of the precious topsoil from
the land before building a new
subdivision, then bring back enough
topsoil to support the new sod.“</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span
style="color:#313131"><br>
<br>
<br>
</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span
style="color:#313131">That’s been standard
practice in the GTA for decades. Can a
municipality regulate soil volumes?</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<div>
<div>
<p class="MsoNormal">On Fri, Oct 1, 2021
at 11:12 AM Trevor Thistle via CANUFNET
<<a
href="mailto:canufnet@list.web.net"
moz-do-not-send="true"
class="moz-txt-link-freetext">canufnet@list.web.net</a>>
wrote:<o:p></o:p></p>
</div>
</div>
<blockquote
style="border:none;border-left:solid #CCCCCC
1.0pt;padding:0cm 0cm 0cm
6.0pt;margin-left:48.0pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal">Hi Ian, <o:p></o:p></p>
</div>
<div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal">Here in Edmonton
I have been working almost
exclusively with tree conservation
during Neighborhood Renewal (NR) for
13 years. NR is the process of
reconstructing all sidewalks, curbs
and streets in a neighborhood, as
well as adding missing
infrastructure. <o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal">In our oldest
neighborhoods I feel that trees
growing in boulevards with
separate sidewalks (curb on one
side, sidewalk on the other side of
the tree) have not really been
impacted by the
perceived restricted growing area,
with the exception of roots
literally engulfing curbs or
overlapping sidewalks. I believe
that the reason for this is that the
construction standards that were in
place decades ago (between
neighborhood establishment and the
time the sidewalk was last replaced)
allowed for the construction of
sidewalks on top of organic soil.
So, in most cases, the trees had
little challenge accessing soil
beyond the boulevard. <o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal">However, new
construction standards include a
gravel base and mechanical
compaction under sidewalks. Also,
greenfield construction is not
what it used to be. Nowadays
developers remove all of the
precious topsoil from the land
before building a new subdivision,
then bring back enough topsoil to
support the new sod. In these cases,
regardless of the sidewalk design
(mono or seperate) the trees do not
have enough soil volume to support
them. We do amend soil volumes with
trenches in separate boulevards, but
these are trenches in clay with
still inadequate soil volumes. So my
point is, depending on construction
practices and standards, the
configuration of the sidewalks in
relation to the trees may have less
impact on soil growing space than we
think. <o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal">but I would agree
that trees in a more free to grow
state, with little or no barriers to
quality soil will outperform a tree
in restricted growing space, and
there will be fewer infrastructure /
tree conflicts. This means that we
will minimize tree related damages
to infrastructure and construction
related damages to trees in order to
maintain that infrastructure. <o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<p
class="MsoNormal"><b><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#202124">Trevor
Thistle</span></b><span
class="apple-converted-space"><b><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#202124"> </span></b></span><b><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#202124">Bsc.
Forestry</span></b><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p
class="MsoNormal"><b>Urban
Forester | PR-4760AM | Tree Risk Assessment Qualified</b><o:p></o:p></p>
</div>
</div>
<div>
<div>
<div>
<p
class="MsoNormal"><span
style="font-family:"Arial",sans-serif;color:#515151">OPEN
SPACE
OPERATIONS</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p
class="MsoNormal"><span
style="font-family:"Arial",sans-serif;color:#515151">CITY
OPERATIONS |
PARKS AND
ROADS SERVICES</span><o:p></o:p></p>
</div>
</div>
</div>
<div>
<div>
<p
class="MsoNormal"> <o:p></o:p></p>
</div>
</div>
<div>
<div>
<div>
<p
class="MsoNormal"><span
style="font-family:"Arial",sans-serif;color:#1155CC">780-944-5577</span><span
style="font-family:"Arial",sans-serif"> OFFICE</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p
class="MsoNormal"><span
style="font-family:"Arial",sans-serif;color:#1155CC">780-913-5893</span><span
style="font-family:"Arial",sans-serif"> MOBILE</span><o:p></o:p></p>
</div>
</div>
<div>
<p
class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<div>
<p
class="MsoNormal"><span
style="font-family:"Arial",sans-serif;color:#515151"><a
href="https://www.google.com/maps/search/City+of+Edmonton%C2%A0+12830+58+Street+NW?entry=gmail&source=g"
moz-do-not-send="true">City of Edmonton </a></span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p
class="MsoNormal"><span
style="font-family:"Arial",sans-serif;color:#515151"><a
href="https://www.google.com/maps/search/City+of+Edmonton%C2%A0+12830+58+Street+NW?entry=gmail&source=g"
moz-do-not-send="true">12830 58 Street NW</a></span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p
class="MsoNormal"><span
style="font-size:12.0pt"> </span><o:p></o:p></p>
</div>
</div>
</div>
<div>
<div>
<div>
<p
class="MsoNormal"><span
style="font-size:10.0pt"> </span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
</div>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<div>
<div>
<p class="MsoNormal">On Wed, Sep 29,
2021 at 9:21 AM Ian Wilson via
CANUFNET <<a
href="mailto:canufnet@list.web.net"
target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">canufnet@list.web.net</a>>
wrote:<o:p></o:p></p>
</div>
</div>
<blockquote
style="border:none;border-left:solid
#CCCCCC 1.0pt;padding:0cm 0cm 0cm
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt">
<div>
<div>
<div>
<p class="MsoNormal"><span
lang="EN-US">All, we are
having a bit of an internal
debate about standards for
local/residential roads and
boulevards. My observation is
that trees that are planted in
a boulevard behind a
monolithic sidewalk (sidewalk
up against the curb and
planting area next to the
property) generally do better.
They have access to more soil
volume in the front yard, they
get more water and the
boulevard is tidier since the
homeowner treats it like part
of their yard. Also fewer
issues with roots lifting
sidewalks. Some of our staff
prefer the separated treed
boulevard, for various
reasons. Note, I’m not talking
about busier roads where the
trees in boulevards help to
form a barrier from traffic.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
lang="EN-US"> </span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
lang="EN-US">We don’t have a
lot of good examples here that
directly show a comparison.
Does anybody have some photos
that might show the
performance of trees on one
side of the road in a
separated boulevard, vs. trees
on the other side behind the
sidewalk?</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
lang="EN-US"> </span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
lang="EN-US">Below is an
example that doesn’t exactly
show this, but it does show
the value of soil volume, with
the trees on the left side
being able to access the lawn
area behind the sidewalk, vs.
the trees in “coffins” on the
right. These are lindens
planted at the same time.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
lang="EN-US"> </span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
lang="EN-US"> </span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
lang="EN-US"><img
style="width:10.302in;height:7.1666in"
id="C116ED62-6B08-4707-88B1-004579EE7596"
src="cid:part2.M02cxJ7o.K1yIoiyp@dunster.ca"
class="" width="989"
height="688" border="0"></span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
lang="EN-US"> </span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
lang="EN-US"> </span><o:p></o:p></p>
</div>
<p class="MsoNormal"
style="margin-bottom:12.0pt"><b><span
style="font-family:"Corbel",sans-serif;color:#0073CF"
lang="EN-US">Ian Wilson</span></b><span
style="font-family:"Corbel",sans-serif;color:#262626"
lang="EN"><br>
</span><span
style="font-family:"Corbel",sans-serif"
lang="EN">Infrastructure
Operations Manager | City of
Kelowna<br>
250-469-8842 |<span
class="apple-converted-space"> </span><a
href="mailto:iwilson@kelowna.ca" target="_blank" moz-do-not-send="true"><span
style="color:#0563C1">iwilson@kelowna.ca</span></a></span><span
style="font-family:"Corbel",sans-serif" lang="EN-US"><br>
</span><span
style="font-family:"Corbel",sans-serif"
lang="EN">Submit a request for
service on the go |<span
class="apple-converted-space"> </span><a
href="http://kelowna.ca/"
target="_blank"
moz-do-not-send="true">kelowna.ca</a></span><o:p></o:p></p>
<p class="MsoNormal"
style="margin-bottom:12.0pt"><i><span
style="font-family:"Corbel",sans-serif;color:black;background:white"
lang="EN-US">I acknowledge
that my workplace is located
on the traditional, ancestral,
unceded territory of the
syilx/Okanagan people</span></i><i><span
style="font-family:"Corbel",sans-serif">.</span></i><o:p></o:p></p>
<div>
<p class="MsoNormal"><span
lang="EN-US"> </span><o:p></o:p></p>
</div>
</div>
</div>
</blockquote>
</div>
<div>
<p class="MsoNormal"><br>
<i><span
style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#222222">The
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remove it from your system. The
copying, dissemination, or
distribution of this message, if
misdirected, is strictly prohibited.</span></i><o:p></o:p></p>
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<p class="MsoNormal">--<span
class="apple-converted-space"> </span><o:p></o:p></p>
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<p class="MsoNormal">Oliver K. Reichl,
B.E.S.(Hons)<br>
-----------<br>
Sent from my mobile phone.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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