[CANUFNET] tearing up pavement or concrete to plant trees?

[Naomi Zurcher]

Hi Meagan:

Checked out the pictures from City of Laval and you should inform them that

• one should never lift a tree by its trunk - only by the root ball. Even with container grown material, the weight is concentrated in the ball and when one lifts the tree by its trunk, the weight of the ball pulls the soil away from direct contact with roots, resulting in early decline and death.

• container grown material is almost always a guarantee of girdling roots. The root ball should always be opened up before the tree is planted - pulling that ball apart to stop the roots from continuing their circular growth. From the photos, it looks as if that didn’t happen

• in the finished planting shot, one cannot see the trunk flares which suggests that the trees have been planted too deep.  Also, the mulch is too close to the trunks of the trees in the photo. Mulch should never be installed against any part of a tree that is covered with bark as the moisture the mulch holds will instigate bark / stem rot.

Kind regards
Naomi

> On Nov 4, 2020, at 10:59 AM, Meagan Hanna via CANUFNET <canufnet at list.web.net> wrote:
> 
> Hiya Grace!
> 
> This is a hot topic in the Montreal Area. Has been for a while....here are a few references :
> 
> City of Laval instituted a subsidy programme for its citizens and institutional partners https://www.laval.ca/Pages/En/Business/demineralisation-greening-private-institutional-properties.aspx <https://www.laval.ca/Pages/En/Business/demineralisation-greening-private-institutional-properties.aspx> 
> City of Montréal has been working on programs for the last 3 years http://ville.montreal.qc.ca/portal/page?_pageid=5798,42657625&_dad=portal&_schema=PORTAL&id=29418 <http://ville.montreal.qc.ca/portal/page?_pageid=5798,42657625&_dad=portal&_schema=PORTAL&id=29418> 
> SOVERDI is a great reference as well for private greening projects and partnerships https://soverdi.org/accueil/ <https://soverdi.org/accueil/> 
> 
> Another project in communities south of Montreal http://crem.qc.ca/fr/2019/09/sous-les-paves-ecole-lionel-groulx/ <http://crem.qc.ca/fr/2019/09/sous-les-paves-ecole-lionel-groulx/> 
> 
> Good luck with the rest of your research.
> 
> All the best,
> Meagan
> 
> 
> 
> 
> Meagan Hanna, MA.
> meagan.hanna at mail.mcgill.ca <mailto:meagan.hanna at mail.mcgill.ca>
> From: CANUFNET <canufnet-bounces at list.web.net <mailto:canufnet-bounces at list.web.net>> on behalf of Grace Golightly via CANUFNET <canufnet at list.web.net <mailto:canufnet at list.web.net>>
> Sent: November 4, 2020 3:55 AM
> To: Canadian Urban Forest Network <canufnet at list.web.net <mailto:canufnet at list.web.net>>
> Cc: Grace Golightly <gragoli at gmail.com <mailto:gragoli at gmail.com>>
> Subject: [CANUFNET] tearing up pavement or concrete to plant trees?
>  
> Does anyone know of cities or communities that have torn up pavement or concrete, in order to plant more trees where they are needed?
> 
> I'd appreciate any links to articles or information.
> 
> Thanks,
> Grace

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