UKTC Archive

Re: School or college Tree Risk-Benefit Management Strategy | New

Subject: Re: School or college Tree Risk-Benefit Management Strategy | New
From: Wayne Tyson
Date: Nov 18 2021 18:19:31
If tree assessment following storms means looking for leaners, cracks in
the soil (usually on the side opposite the lean), and raised soil on one
side of the tree, the tree may be terminally weakened. There have been
cases where the remaining root system was strong enough to hold that
position long enough for new growth to continue to add a component of
resistance, allowing the tree to remain for several years. The problem is,
the tree remains out of balance, and as the canopy continues to grow, more
weight is added to a longer moment-arm, increasing the tension which the
remaining damaged root system and any new root growth must resist. The
problem remains that there is no way to determine for certain when the tree
will fail, if ever, depending upon a constantly-changing, imponderably
complex context.

WT

On Thu, Nov 18, 2021 at 4:56 AM David Evans <david@xxxxxxxxxxxxxx.com> wrote:

This might interest those of you who carry out tree risk assessments at
schools or colleges

We've just uploaded and shared a new Tree Risk-Benefit Management Strategy
template for schools or colleges in the Landowner section of the Risk
Management page on our website.

https://validtreerisk.help/Risk-Management

This work was prompted by a Validator asking for some client guidance.  As
with the other Strategies and publications, we've waived copyright, and
it's
shared under a creative commons licence.

The difference between the Landowner & School Strategies is the size of
land
and number of staff.

Landowner
Many staff who spend a lot of time working outside have been trained as
Basic Validators.  Like the University of Dundee.

School
Usually, one or two caretakers who spend some time working outside and
haven't been trained as Basic Validators.  When they're outside, they carry
out Passive Assessment by keeping an eye out for Obvious Tree Risk
Features;
particularly after storms.

Cheers

Acer Ventura




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The UKTC forum is supported by Bosky Trees arboricultural consultancy and
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https://www.stockholmtreepits.co.uk