[CANUFNET] canopy cover targets
Dwayne Gilbert
Dwayne.Gilbert at mississauga.ca
Tue Jul 5 15:41:37 EDT 2016
Well said, agree 100% Quality over quantity, just hard to enforce to the resident whose only concern is the empty spot in front of their home. Until education about not just the importance of trees but also how we can only go so fast in regards to removing and replacing is wide spread, there will be a push from the public and they know how to get things done to their liking. Which strings to pull…
Dwayne G.
From: CANUFNET [mailto:canufnet-bounces at list.web.net] On Behalf Of Julian
Sent: 2016/07/05 2:01 PM
To: Canadian Urban Forest Network
Subject: Re: [CANUFNET] canopy cover targets
An interesting debate but missing the fact that it is not arborists who make it all happen. The design professions such as planners and architects have the major influence along with engineers. As I noted in a recent lecture in Portland, we are still preaching mainly to the choir and it is a remarkably similar message to the one we had thirty years ago. Urban planners are focused on density, transportation, affordability etc. and they assume that trees can be dealt with in the landscape plans later on once the 'important' planning work has been finished. Or, and often worse yet, they hear about tree canopy and take it on board with no practical sense at all. An issue that is now common in my area where I see developers at all scales been told to retain trees that have almost no chance of survival. But rather than accept reality we are keeping them to be politically correct and claim they were there as part of the canopy coverage effort. Lost in the ensuing debates is the fact that we need land (space) where trees can be grown. If the urban designs always densify the landbase , or we allow large footprints with no open space we will always be left with small spaces suitable only for small trees.
Until we can integrate our ideas with mainstream urban design, many of these targets are impractical feel good ideas. And, we need to spend more time focusing on getting a few trees well established in a good long term growing space, rather than planting hundreds of trees with no budget for aftercare, watering, maintenance etc.
Sent from my iPhone
On Jul 5, 2016, at 7:46 AM, Philip van Wassenaer <pwassenaer1022 at rogers.com<mailto:pwassenaer1022 at rogers.com>> wrote:
A great point Alice,
Three things if anyone wants to succeed in increasing the canopy cover.
1. Be much more successful at retaining existing trees. If we are constantly losing trees it is almost impossible to increase canopy cover. Even where policy is in place, enforcement seems difficult and good trees are going missing. We have significant information and techniques to work around trees successfully , but they are not often being applied.
2. Private property tree planting. Municipal lands available for tree planting will often not allow for the planting of all the trees required to actually increase tree cover. Engagement of all the various land owners within a municipality to plant trees is crucial.
3. Do an analysis of current, possible and probable canopy cover and plan based on those findings.
Philip van Wassenaer, B.SC., MFC
1248 Minnewaska Trail
Mississauga, Ontario
Canada, L5G 3S5
Tel: (905) 274-1022
Cell: (647) 221-3046
Fax: (905) 274-2170
<image002.jpg>
www.urbanforestinnovations.com<http://www.urbanforestinnovations.com/>
From: CANUFNET [mailto:canufnet-bounces at list.web.net] On Behalf Of Alice Casselman
Sent: July-04-16 7:32 PM
To: Canadian Urban Forest Network
Cc: Nancy Furness
Subject: Re: [CANUFNET] canopy cover targets
A major policy that needs to be revisited in my view is the one regulating how developers are allowed to clear the land before building
By allowing removal of topsoil we are all trying to preparing to plant on subsoil
Think schoolyards and homes
Where tree struggle due bad soil eg Peel clay!!
Alice
Sent from my iPhone
On Jul 4, 2016, at 2:05 PM, Councillor Laura Dupont <Dupontl at portcoquitlam.ca<mailto:Dupontl at portcoquitlam.ca>> wrote:
Thank you Ian for the good points you make. I am grateful to hear the diversity of perspectives on the issue of "ideal canopy" for our communities. It is vital to engage all stakeholders and ideally build good policy to weather the storms of changing governments. :)
I think this issue plays an extremely important role at making our regions resilient to the effects of climate change and I appreciate the dialogue. Keep up the good work everyone and please if you don't already, consider building relationships with your Councils so we too can be informed and understand that this should be a high priority.
Best regards,
Councillor Laura Dupont
City of Port Coquitlam
On: 04 July 2016 04:03, "Ian Bruce" <ianbruce at brucetree.com<mailto:ianbruce at brucetree.com>> wrote:
I certainly agree whole-heartedly Janet, the job of urban forestry planners is to plan for the future of a healthier more expansive urban forestry canopy. However municipal urban forestry planners ultimately report to a broad spectrum of stakeholders from the public at large to funding agencies and ultimately city council.
Realization of the goals and objectives espoused by Urban Forest Management Plans (specifically urban canopy targets) will only flow from buy-in by these stakeholders.
I would suggest that all the urban forest planning we do will fall short without an equal supporting effort to concurrently educate those we need on-board. This requires strong and dedicated lobbying, particularly given the ever-increasing competition by other "essential service" suppliers for attention and funding. The statistics and facts woven into the fabric that supports this education and lobbying need to be substantive and compelling.
In the late 80's I hosted a one-day workshop at Humber for a group of the most prominent urban foresters in the Toronto area. There were probably 25 (at the most) in attendance. Consider how far we have come since the 80s and 90s with respect to urban forestry planning, university education programmes, urban forest networking, research and media coverage and very importantly...climate change.
In light of this trajectory of advancement and all of the interaction here on Canufnet, I am encouraged that the urban forestry community (notably in Canada), has the expertise and collective will to develop or contribute to a definitive statistics-based model for use in developing jurisdiction-specific canopy cover targets which will reflect the multitude of prevailing influences.
Happy Canada Day weekend,
iAN
On Thu, Jun 30, 2016 at 3:43 PM, Janet McKay <janet at yourleaf.org<mailto:janet at yourleaf.org>> wrote:
All absolutely true challenges and shortcomings of our current way of doing things, but if we don't have high (aspirational) targets, we have no leverage to argue that we need to change the way we are doing things. If City Councils lower targets to meet what is realistic today there's even less incentive for them to find ways of doing things in a better/smarter way.
Have a great weekend everyone and thanks for the thought-provoking discussions!
Janet McKay, Executive Director
LEAF (Local Enhancement and Appreciation of Forests)
Artscape Wychwood Barns
253-601 Christie St
Toronto, ON M6G 4C7
416-413-9244 x17
1-888-453-6504 x17
<image001.jpg><http://www.yourleaf.org/node/4>
On Thu, Jun 30, 2016 at 3:00 PM, <canufnet-request at list.web.net<mailto:canufnet-request at list.web.net>> wrote:
Send CANUFNET mailing list submissions to
canufnet at list.web.net<mailto:canufnet at list.web.net>
To subscribe or unsubscribe via the World Wide Web, visit
http://list.web.net/lists/listinfo/canufnet
or, via email, send a message with subject or body 'help' to
canufnet-request at list.web.net<mailto:canufnet-request at list.web.net>
You can reach the person managing the list at
canufnet-owner at list.web.net<mailto:canufnet-owner at list.web.net>
When replying, please edit your Subject line so it is more specific
than "Re: Contents of CANUFNET digest..."
Today's Topics:
1. Re: FW: tree canopy target (Ian Bruce)
2. Re: Canadian or U.S. jute tree tie suppliers (Ian Bruce)
----------------------------------------------------------------------
Message: 1
Date: Thu, 30 Jun 2016 14:08:26 -0400
From: Ian Bruce <ianbruce at brucetree.com<mailto:ianbruce at brucetree.com>>
To: Canadian Urban Forest Network <canufnet at list.web.net<mailto:canufnet at list.web.net>>
Subject: Re: [CANUFNET] FW: tree canopy target
Message-ID:
<CACXcgmJBaU=ao5EUHDW2+Xmxfh2135PQYXVk-Pm-YJj6GYkh6g at mail.gmail.com<mailto:ao5EUHDW2%2BXmxfh2135PQYXVk-Pm-YJj6GYkh6g at mail.gmail.com>>
Content-Type: text/plain; charset="utf-8"
So....not to put a negative spin on all of this positive discussion around
canopy cover targets but...
As the owner of a tree care firm in Toronto, I would like to throw out the
following comments with respect to our targets here for future canopy:
1. In recent years, the consulting arborists in our firm are
increasingly having to represent tree preservation related expectations by
the city and for clients, that compete head-on with issues around
intensification, re-development and in-fill. One good example is the
city's recent requirement that developers replace long-time surface parking
on their empty sites with underground public parking as part of their
development proposal.
2. Related to the latter but also a problem with providing significant
underground parking for high-rise development in areas zoned for
intensification, is the trend to underground built form (parking lots)
stretching property line to property line on all four sides. Ultimately
when the water-proofing membrane deteriorates and the slab of this
underground needs repair, all trees on the site have to be removed and all
soil excavated to facilitate re and re. You can guess what happens when
they are done and re-landscaping... a new crop of 50-60 mm. trees or
hopefully larger. Positive side...excellent opportunity to replace some
old worn-out, poorly performing or structurally defective trees or
currently less than desirable species (Norway Maple, but don't get me going
on that topic) with desirable species of the day, healthy and structurally
sound and reflective of the new pallet of built form and site-related
constraints. Down-side...large growing shade trees contributing
significantly on those sites get replaced by a short-rotation crop because
up until now membrane technology promised us 25-35 years of water-proofing
life.
3. Then there are the "natural" pressures on the existing canopy of EAB,
ice storms and the threat of Oak Wilt and Sudden Oak Death.
4. Lastly is our mushrooming love affair with redevelopment of old
residential sites with small bungalows or war-time houses on, to monster
homes that push the zoning limits and threaten large, previously healthy
and in many cases structurally sound trees that escaped chronic injury due
to their location away from the street.
40%....needs to be considered with a grain of salt in a city land-locked by
surrounding existing urban sprawl.
Happy Canada Day Weekend.
iAN
[image: Inline image 1]
On Tue, Jun 21, 2016 at 3:32 PM, Vojka Miladinovic <vmiladi at toronto.ca<mailto:vmiladi at toronto.ca>>
wrote:
>
>
>
>
> *From:* Connie Pinto
> *Sent:* June-21-16 3:32 PM
> *To:* 'canufnet at list.web.net<mailto:canufnet at list.web.net>'
> *Cc:* Vojka Miladinovic; 'alan.kemp at nanimo.ca<mailto:alan.kemp at nanimo.ca>'
> *Subject:* tree canopy target
>
>
>
> Good afternoon,
>
> My colleague forwarded the inquiry below.
>
>
>
> Alan,
>
> We are currently working on the development of a tree planting strategy
> for the City of Toronto with a target of increasing the tree canopy cover
> to 40% by 2050-2060.
>
> Our current tree canopy cover is between 26.6% and 28% with approximately
> 10.2 million trees across the city, 60% of these are on private property.
>
>
>
> Toronto's tree canopy target is one of six strategic goals proposed in
> the City's Strategic Forest Management Plan
> <http://www1.toronto.ca/City%20Of%20Toronto/Parks%20Forestry%20&%20Recreation/Urban%20Forestry/Files/pdf/B/backgroundfile-55258.pdf>.
> Research suggested that '40% tree canopy cover is optimum in cities where
> the ecological climax community is deciduous forest. This will ensure the
> sustainability of the urban forest and preserve the ecological functions
> while maximizing community benefits from trees'. See also: Assessing
> Urban Forest Effects and Values: Toronto?s Urban Forest
> <http://www1.toronto.ca/City%20Of%20Toronto/Parks%20Forestry%20&%20Recreation/Urban%20Forestry/Files/pdf/R/Reports/effects-and-values.pdf> and
> Every Tree Counts
> <http://www1.toronto.ca/wps/portal/contentonly?vgnextoid=5e6fdada600f0410VgnVCM10000071d60f89RCRD&vgnextchannel=9aad60d066169410VgnVCM10000071d60f89RCRD>
> .
>
>
>
> I hope this is helpful.
>
>
>
> Good luck,
>
> Connie
>
> *---------------*
>
> *Connie Pinto*
>
> *Program Standards & Development Officer*
>
> Urban Forestry
>
> *416-392-0357<tel:416-392-0357> <416-392-0357<tel:416-392-0357>>*
>
> Toronto.ca/trees<http://Toronto.ca/trees>
> <http://www1.toronto.ca/wps/portal/contentonly?vgnextoid=470bdada600f0410VgnVCM10000071d60f89RCRD>
>
>
>
>
>
> *From:*
>
>
> * CANUFNET [mailto:canufnet-bounces at list.web.net<mailto:canufnet-bounces at list.web.net>
> <canufnet-bounces at list.web.net<mailto:canufnet-bounces at list.web.net>>] On Behalf Of Alan Kemp Sent: June-21-16
> 12:11 PM To: 'Canadian Urban Forest Network' Subject: [CANUFNET] tree
> canopy target*
>
>
>
> *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.*
>
>
>
> *Any suggestions?*
>
>
>
> *Alan Kemp*
>
> *Urban Forestry Coordinator*
>
> *Certified Arborist, Certified Tree Risk Assessor*
>
> *Community Development*
>
> *City of Nanaimo*
>
> *250 755 4460<tel:250%20755%204460> <250%20755%204460> (local 4357)*
>
> *alan.kemp at nanaimo.ca<mailto:alan.kemp at nanaimo.ca> <alan.kemp at nanaimo.ca<mailto:alan.kemp at nanaimo.ca>>*
>
> *www.nanaimo.ca/goto/urbantrees<http://www.nanaimo.ca/goto/urbantrees> <http://www.nanaimo.ca/goto/urbantrees>*
>
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.web.net/pipermail/canufnet/attachments/20160630/2f5e8e97/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 1d-ian_email_signature.png
Type: image/png
Size: 16237 bytes
Desc: not available
URL: <http://list.web.net/pipermail/canufnet/attachments/20160630/2f5e8e97/attachment-0001.png>
------------------------------
Message: 2
Date: Thu, 30 Jun 2016 12:50:01 -0400
From: Ian Bruce <ianbruce at brucetree.com<mailto:ianbruce at brucetree.com>>
To: Canadian Urban Forest Network <canufnet at list.web.net<mailto:canufnet at list.web.net>>
Subject: Re: [CANUFNET] Canadian or U.S. jute tree tie suppliers
Message-ID:
<CACXcgmJZXoXhiZwVL+JQGupa1PBo-wQBi3U9X6e=U1=TRQ+oFQ at mail.gmail.com<mailto:TRQ%2BoFQ at mail.gmail.com>>
Content-Type: text/plain; charset="utf-8"
I saved this message as a draft and forgot about it, but I have a lot of
experience over 44 years staking and tying trees and assessing every manner
of tree tie material. So I decided later better than never.
I would start by saying that back in the 90s Landscape Ontario and OALA
co-operated to put together the LOHTA/OALA committee of industry experts to
look at high mortality of newly planted trees due to transplant shock.
Well-known industry experts like Tony DiGiovanni, and at the time, Horst
Dickert and John Putzer and others on the 8 person committee approached the
question by listing all of the reasons for transplant shock and then one by
one listed the best alternative that supported transplant success and free
growing on.
The outcome of the above year-plus project was the development of the
"Reference Guide For Developing Planting Details". The guide includes a
well-laid out description of the issues and recommended methods for
planting for success. The document was revised in 2005 and nothing much
has changed. The methods outlined are in most cases the result of years of
experience on the committee and research all over North America (one of the
most important and local experts being Dr. Glen Lumis from U of G. I
strongly suggest that anyone looking to put together a detail (BR, B&B, CG,
WB or tree-spade dug) would be well-advised to contact LO for a copy of
this guide. (side note: we also put together a similar document entitled
"A Reference Guide For Selecting and Handling Plant Material".
The above-noted planting detail guide sought to *eliminate the use of* any
material used in the above-ground planting operation that did not
biodegrade in a reasonable period of time if whoever planted it forgot
about follow-up inspection and maintenance. Out of that we recommended
taking strips of regular loose weave burlap (such as the material used to
ball, burlap and drum-lace trees) and rolling it and tying the tree in a
figure 8 with a couple of twists between stake and tree to keep the stake
itself from banging, rubbing or girdling the trunk.
Today with an emphasis on time-saving and a uniform method and finished
product where many crews and hands are involved, I recommend 2" wide
closely woven burlap. It biodegrades reasonably quickly, comes in an easy
to manage and stow (in a truck) roll, and is quick and easy to apply. If
you want something to spec for large quantity contract or in-house
plantings, this is the material. As noted by others, Timm Enterprises
carries this material.
Our operations division also uses Arbor-tie synthetic webbing in other tree
support applications where we need the least obtrusive material in highly
ornamental landscapes where clients get put off by "unattractive, crude"
materials like burlap. The cautionary message here is that being synthetic
(and very strong) this material will last a long time and not degrade
quickly enough or adequately enough to avoid girdling of the trunk or
getting caught and included in the union of a lower branch and the trunk.
Rather long-winded I guess, but proper planting (second only to proper
species and plant selection and careful handling) is at the root of future
health, vitality and longevity of the trees in our urban forest canopies.
Happy Canda Day weekend.
Cheers,
iAN
[image: Inline image 1]
On Tue, Jun 28, 2016 at 11:08 AM, Alice Casselman <
alice.casselman37 at gmail.com<mailto:alice.casselman37 at gmail.com>> wrote:
> We use burlap for ties around stakes for young trees
> Timmenterprises.com<http://Timmenterprises.com>
> Great family business west of Toronto talk to Heidi the daughter running
> the business
> Alice for ACER
>
> Sent from my iPhone
>
> On Jun 28, 2016, at 10:32 AM, Master Plan, Urban Forest <ufmp at halifax.ca<mailto:ufmp at halifax.ca>>
> wrote:
>
> Hello:
>
> Is anyone aware of a Canadian or US supplier of jute tree ties? The
> product is available in Europe, Australia and NZ. Some suppliers will ship
> internationally but I?m hoping to find something a bit closer to home.
> Here?s an example of the product.
>
>
> http://www.advancelandscape.co.nz/shop/Plant+Stakes++Ties/Jute+Tree+Tie+Webbing.html
>
> Thank you,
>
> John Charles
>
> UFMP Project Manager
>
> Halifax Regional Municipality
>
> PO Box 1749
>
> Halifax, NS B3J 3A5
>
> T. 902.490.5771<tel:902.490.5771>
>
> C. 902 476.7372<tel:902%20476.7372>
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.web.net/pipermail/canufnet/attachments/20160630/1c478e67/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 1d-ian_email_signature.png
Type: image/png
Size: 16237 bytes
Desc: not available
URL: <http://list.web.net/pipermail/canufnet/attachments/20160630/1c478e67/attachment.png>
End of CANUFNET Digest, Vol 136, Issue 25
*****************************************
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.web.net/pipermail/canufnet/attachments/20160705/042e262f/attachment-0001.html>
More information about the CANUFNET
mailing list