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<p class="MsoNormal"><span style="color:#1F497D">Good morning colleges:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I’ve found this interesting article (World Health Organization web site) that might give us some answers:<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://apps.who.int/iris/bitstream/10665/174012/1/9789241508537_eng.pdf?ua=1">http://apps.who.int/iris/bitstream/10665/174012/1/9789241508537_eng.pdf?ua=1</a><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">Have a great day.<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"><o:p> </o:p></span></p>
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<b><font color="#808080"><font color="#808080"><font color="#808080"><br>
<font style="font-family:Arial;font-size:12pt;">Andres Olaya</font><font size="2" face="Arial"><br>
</font></font></font></font></b><b><font color="#808080"><font color="#808080"><font color="#808080"><font style="font-family:Arial;font-size:12pt;">Forestry Information Analyst</font><font style="font-family:Arial;">,
</font><font style="font-family:Arial;">Central Operations</font><br>
<font style="font-family:Arial;font-size:12pt;">Parks & Open Space</font></font></font></font></b><br>
<font face="Arial"><font color="#7d7d7d">Town of Oakville<font size="2" face="Arial"> <font size="3">| </font></font></font></font><b><font style="font-family:Arial;font-size:12pt;color:#7D7D7D;font-weight:normal;">905-845-6601</font></b><font color="#7d7d7d" face="Arial"></font><font style="font-family:Arial;font-size:12pt;color:#7D7D7D;">,
ext.</font><font style="font-family:Arial;font-size:12pt;color:#7D7D7D;">2900</font><font color="#7d7d7d" size="2" face="Arial"> <font size="3">|</font>
</font><font size="2" face="Arial"></font><a href="http://www.oakville.ca/"><u><font color="#0000ff"><font color="#0000ff"><font color="#0000ff"><font face="Arial">www.oakville.ca</font></font></font></font></u></a><font color="#808080" size="2"><font color="#808080" size="2"><font color="#808080" size="2"></font></font></font>
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<p dir="ltr"><font face="Arial"></font></p>
<p dir="ltr"><font color="#c0c0c0" size="4" face="Webdings"><font color="#c0c0c0" size="4" face="Webdings"><font color="#c0c0c0" size="4" face="Webdings"><font size="2"><font color="#0082bf" size="3" face="Arial">Vision: To be the most livable town in Canada</font><br>
</font></font></font></font><font size="2" face="Arial"><font size="2" face="Arial"><font color="#7d7d7d" size="2" face="Arial">Please consider the environment before printing this email.<br>
</font></font></font><a href="http://www.oakville.ca/privacy.html"><u><font size="2" face="Arial"><font size="2" face="Arial"><font size="2" face="Arial"><font color="#7d7d7d">http://www.oakville.ca/privacy.html</font></font></font></font></u></a><br>
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<p class="MsoNormal"><b>From:</b> CANUFNET [mailto:canufnet-bounces@list.web.net]
<b>On Behalf Of </b>Peter Duinker<br>
<b>Sent:</b> Tuesday, June 21, 2016 2:05 PM<br>
<b>To:</b> Canadian Urban Forest Network<br>
<b>Subject:</b> Re: [CANUFNET] tree canopy target<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-CA" style="font-size:12.0pt;font-family:"Times New Roman",serif">Greetings Alan:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-CA" style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-CA" style="font-size:12.0pt;font-family:"Times New Roman",serif">Canopy targets for a city or town are, in my view, fairly arbitrary and definitely not generalizable. I hold the view that targets
are never scientifically based because they depend on people to express preferences and are therefore value-based. The target-setting exercise can be scientifically informed, of course. In the case of urban-forest canopy, one might expect an analysis of
current canopy coverage and its benefits, as well as a range of forecasts detailing how many more trees it would take to get to a specific canopy coverage, and what would be the benefit stream associated with each scenario of canopy coverage. I have never
seen this done.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-CA" style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-CA" style="font-size:12.0pt;font-family:"Times New Roman",serif">One could look at the question this way: what factors influence the setting of a canopy target? Factors might include: (a) the
current canopy, which is presumably lower than the target; (b) the cost, in terms of new trees established, to get to a specific canopy target at a particular future year; (c) the prospects that the cost predicted can be covered from the various budgets available;
(d) the increase in benefits associated with the targeted canopy cover; and (e) what other cities and towns are doing in this respect. While (a) through (d) are sensible factors, (e) is less so, but I’ll bet that many urban-forest strategies are based on
peer behaviour when it comes to canopy targets. Perhaps it boils down to this: how much canopy cover would we ideally want? Probably much, much more than we have today. But how much canopy cover can we realistically hope to achieve in the next decades?
Probably some smallish fraction of the ideal. So let’s pick a number that seems achievable and gets us substantially more canopy than we have today.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-CA" style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-CA" style="font-size:12.0pt;font-family:"Times New Roman",serif">I would be most interested to know if anyone is using a more sophisticated approach than this.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-CA" style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:12.0pt;font-family:"Times New Roman",serif">Best wishes, Peter Duinker</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Peter N. Duinker, PhD, P.Ag.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Professor<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">School for Resource and Environmental Studies<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Faculty of Management<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Dalhousie University<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">6100 University Ave.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Halifax, Nova Scotia, Canada
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">B3H 4R2<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Phone: 902-494-7100<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Cell: 902-229-5141<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Fax: 902-494-3728<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Email:
<a href="mailto:peter.duinker@dal.ca">peter.duinker@dal.ca</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Times New Roman",serif"><a href="http://www.dal.ca/faculty/management/sres/faculty-staff/our-faculty/peter-duinker.html">http://www.dal.ca/faculty/management/sres/faculty-staff/our-faculty/peter-duinker.html</a></span><span lang="EN-CA"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> CANUFNET [<a href="mailto:canufnet-bounces@list.web.net">mailto:canufnet-bounces@list.web.net</a>]
<b>On Behalf Of </b>Alan Kemp<br>
<b>Sent:</b> June 21, 2016 1:11 PM<br>
<b>To:</b> 'Canadian Urban Forest Network' <<a href="mailto:canufnet@list.web.net">canufnet@list.web.net</a>><br>
<b>Subject:</b> [CANUFNET] tree canopy target<o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:12.0pt">The City of Nanaimo has an Urban Forest Management Strategy. In that Strategy we have a target of increasing our forest canopy to over 30% in the next decade. Of course this is difficult in the
urban setting. Our Management and Protection of Trees Bylaw supports this document by requiring tree replacement plans for development, which in general terms works. However, I was asked why 30% or even 35%? What is the scientific reasoning behind that. Although
I can explain all the benefits of an urban forest, I could not really give a good science based answer. I have looked through a lot of literature, but don’t seem to be able to give a reasonable answer.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:12.0pt">Any suggestions?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Book Antiqua",serif">Alan Kemp<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Book Antiqua",serif">Urban Forestry Coordinator<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Book Antiqua",serif">Certified Arborist, Certified Tree Risk Assessor<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Book Antiqua",serif">Community Development<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Book Antiqua",serif">City of Nanaimo<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Book Antiqua",serif">250 755 4460 (local 4357)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Book Antiqua",serif"><a href="mailto:alan.kemp@nanaimo.ca">alan.kemp@nanaimo.ca</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Book Antiqua",serif"><a href="http://www.nanaimo.ca/goto/urbantrees">www.nanaimo.ca/goto/urbantrees</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Book Antiqua",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
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