<div dir="ltr">Bruno, <div><br></div><div>First, you need to decide (or if you've decided already, elucidate) the percentage scale you mentioned: i.e. is the "percentage" the chance of surviving 1 year more, 10 years more, a measure of vigor, % of optimal growth for that species under specific location and soil conditions, etc. Front here, you can seek to improve it, but even then, I'd recommend against developing a "target percentage" instead, seek to incrementally reduce the mortality rate, while realizing that a couple of hot summers can significantly affect tree health and mortality rates.</div><div>For the average citizen, it's easier to "bin" trees using a Likert scale (i.e. 1-5), with 1 being dead or imminently dying, and 5 being perfectly healthy.</div><div><br></div><div>Hope this helps, and happy to discuss further.</div><div><br></div><div>Sincerely,</div><div><br clear="all"><div><div dir="ltr" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><div><b>Alex Wick, </b>CEO<br></div><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div>Forester/Founder</div><div>Cascadia Carbon<br></div><div><a href="https://carboncodex.app/" target="_blank">www.carboncodex.app</a><br></div><div><a href="http://cascadiacarbon.com/" target="_blank">www.cascadiacarbon.com</a></div><div>www.carbonaut.app</div><div><br></div></div></div></div></div></div></div></div></div></div></div><div></div></div></div></div></div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jan 6, 2022 at 12:52 PM Bruno PAQUET via CANUFNET <<a href="mailto:canufnet@list.web.net" target="_blank">canufnet@list.web.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><p class="MsoNormal" style="margin:0cm 0cm 8pt;line-height:107%;font-size:11pt;font-family:Calibri"><span lang="EN-CA">Hello everyone,</span></p><p class="MsoNormal" style="margin:0cm 0cm 8pt;line-height:107%;font-size:11pt;font-family:Calibri">Best wishes for the year ahead with hopefully less COVID considerations.</p><p class="MsoNormal" style="margin:0cm 0cm 8pt;line-height:107%;font-size:11pt;font-family:Calibri"><span style="font-size:11pt">Being
responsible for the urban forest of a borough on the Montreal Island, I am
looking for references on the optimal target rating for the health condition of
public trees.</span><br></p>
<p class="MsoNormal" style="margin:0cm 0cm 8pt;line-height:107%;font-size:11pt;font-family:Calibri"><span lang="EN-CA">A recent
study I commissioned (2021) showed, based on a sampling of 10% of our public
tree population, that the condition rating of our trees along streets and in
parks was 67%.</span></p>
<p class="MsoNormal" style="margin:0cm 0cm 8pt;line-height:107%;font-size:11pt;font-family:Calibri"><span lang="EN-CA">I have
consulted many documents and have not found anything specific about a target
for such an optimal rating, which would be recognized by the community as desirable. A
target score of 100% would obviously be completely unrealistic but what should
we aim for, 80, 85 or 90%.</span></p>
<p class="MsoNormal" style="margin:0cm 0cm 8pt;line-height:107%;font-size:11pt;font-family:Calibri"><span lang="EN-CA">Your
comments would be appreciated.</span></p><p class="MsoNormal" style="margin:0cm 0cm 8pt;line-height:107%;font-size:11pt;font-family:Calibri"><span style="font-size:11pt">Thanks</span><br></p><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><br></div><div dir="ltr"><div><br></div><div><div dir="ltr"><font face="tahoma, sans-serif" size="4"><b>Bruno Paquet</b></font><div><br></div><div><font color="#1155cc"><a href="mailto:bruno.paquet@montreal.ca" style="color:rgb(17,85,204)" target="_blank">bruno.paquet@montreal.ca</a></font><span style="color:rgb(80,0,80)"> </span><font face="tahoma, sans-serif"><br></font></div><div><font face="tahoma, sans-serif"><br></font></div><div><br></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr"><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div><div id="gmail-m_6368834725226624999gmail-m_-8129578112037441345gmail-m_-1188098943278203015yahoo_quoted_8759322115"><div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;color:rgb(38,40,42)"><div><div id="gmail-m_6368834725226624999gmail-m_-8129578112037441345gmail-m_-1188098943278203015yiv5383142870"><div><div>
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