UKTC Archive

RE: [EXTERNAL] Tree failure potential assessment study WAS Civil cases for nuisance or damage to property

Subject: RE: [EXTERNAL] Tree failure potential assessment study WAS Civil cases for nuisance or damage to property
From: Alastair Durkin
Date: Jan 15 2020 15:55:33
Jim, Sean is accusing you of having only 'five paltry senses'. I'm sure 
you've always claimed to have a few more than that?


-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info <uktc-request@xxxxxx.tree-care.info> 
On Behalf Of Harrison, Sean
Sent: 15 January 2020 15:31
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: RE: [EXTERNAL] Tree failure potential assessment study WAS Civil 
cases for nuisance or damage to property

Hi Jim,
Thanks for that and I agree with most of what you say. However, I do disagree 
with your point " By and large root systems are over-designed in nature".
Nothing in nature is 'over-designed'. We, however, make judgements about 
nature's design and we often make the mistake that because we can't see a 
purpose a purpose can't exist; but there will be a reason (way beyond our 
understanding and our five paltry senses) as to why a thing is the way it is.

All the best
Sean

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info <uktc-request@xxxxxx.tree-care.info> 
On Behalf Of Jim Quaife
Sent: 14 January 2020 19:50
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: RE: [EXTERNAL] Tree failure potential assessment study WAS Civil 
cases for nuisance or damage to property

Nice idea Wayne, but no chance of enactment. By and large root systems are 
over-designed in nature, and root severance is a matter of judgement and not 
law.  BS5837 advocates the removal of perhaps two-thirds of a tree's root 
system. There are any number of instances where roots have been severed to an 
extent that raises eyebrows and yet the tree doesn't miss a beat.
Of course there are converse examples, but I have been in situations where a 
single root is deemed to be important and when one looks at what else is 
sustaining the tree, that notion is frankly ridiculous.
Like everything else to do with trees, root severance is a matter of 
judgement and justification.  This is an arb's stock in trade!
Jim

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
[mailto:uktc-request@xxxxxx.tree-care.info] On Behalf Of Wayne Tyson
Sent: 14 January 2020 18:38
To: UK Tree Care
Subject: Re: [EXTERNAL] Tree failure potential assessment study WAS Civil 
cases for nuisance or damage to property

The main "practical" point is that there should be a law prohibiting the 
severance of tree roots. Of course, we all know that's not going to happen, 
but it should be done with full knowledge of the consequences, and under 
permit that requires real data on the potential consequences (including
liability) derived from sound scientific procedures (e.g., tritium tracing or 
approved equal [For the record, I have not performed this procedure, only 
read about it.]). What is not well understood is the complex nature of the 
radial root system development in all directions from the stem/trunk in 
relation to tree health and structural stability. What really provides 
resistance to toppling/uprooting is the fine-root matrix that extends to and 
beyond the "drip-line" of the tree and whether or not meristematic tissue is 
present to facilitate "recovery" of the severed roots, which is limited to 
fine roots. Anchoring roots tend, in many if not most species, to lack such 
tissue, and their severance kills the attached finer roots that actually 
provide the resistance. Big roots lacking the capacity to recover do not, by 
themselves, provide much resistance--root "pruners,"
listen up! Loss of resistance is essentially permanent, and the load 
continues to increase as the tree grows. At the very least, such a practice 
does not increase resistance (root-system "strength").

Here is a link of relevance I recently discovered by one of our (US) best 
arborists. It should be noted that while it may be an absurdly extreme case, 
tree failure potential can be significantly induced by far less.
https://www.youtube.com/watch?v=xFqU2kBlxkI

WT

On Tue, Jan 14, 2020 at 4:33 AM Harrison, Sean < 
Sean.Harrison@xxxxxxxxxxx.gov.uk> wrote:

Nice one Wayne;
I shall use that next time an insurance company wants a 200 year old 
tree removed because roots are damaging the foundations of a 70 year old 
house.
Sean



-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
<uktc-request@xxxxxx.tree-care.info>
On Behalf Of Wayne Tyson
Sent: 11 January 2020 22:40
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: [EXTERNAL] Tree failure potential assessment study WAS Civil 
cases for nuisance or damage to property

Warning: email from outside of MVDC - if in any doubt do not open 
links or attachments, or carry out requested actions 
________________________________


 Mike Charkow,

Somewhat tongue-in-cheek but (contrarily and seriously), I might 
suggest that the construction of the fence and slab might have caused 
damage and to the root system and compromised its integrity, possibly 
compromising the tree's well-being and shortening the tree's life, not 
to mention weakening the tree's ability to support itself 
constitutionally and physically, as well as the slab depriving the 
root system of air and water, thus causing the root system to favor 
the part of the soil profile nearest the surface, i.e., the slab as 
well as possible or probable damage to the root system by the digging 
of fencepost pits, not to mention the installation of underground 
facilities such as foundations, utility facilities, etc.

On the other hand, the planting of a large-growing tree in a location 
close to a property line by someone who knew or should have known that 
it would encroach upon an adjacent property might also be questioned.
If the tree was natural, both owner and neighbor might be guilty (as 
if there were any justice for Nature's voiceless) of  compromising the 
tree's rights to the quiet enjoyment of its home and sustenance, as 
well as expectations of freedom from injury.

I'll be interested to know (and get links to) any cases and judgments.
Do tree's have standing?

Wayne



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To unsubscribe send mailto:uktc-unsubscribe@xxxxxx.tree-care.info

The UKTC is supported by Bosky Trees arboricultural consultancy 
http://www.boskytrees.co.uk/ This MVDC email is only intended for the 
individual or organisation to whom or which it is addressed and may contain, 
either in the body of the email or attachment/s, information that is 
personal, confidential and/or subject to copyright. If you are not the 
intended recipient, please note that copying or distributing this message, 
attachment/s or other files associated within this email, is strictly 
prohibited. If you have received this email in error, please notify the 
sender immediately and then delete it.



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The UKTC is supported by Bosky Trees arboricultural consultancy 
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To unsubscribe send mailto:uktc-unsubscribe@xxxxxx.tree-care.info

The UKTC is supported by Bosky Trees arboricultural consultancy
http://www.boskytrees.co.uk/