Tony
Sorry for the delayed response, I have just got round to sorting my UKTC
inbox.
I will certainly ask Claus to cover this in May - he is just finalising the
presentation. He may also have time to discuss the recent cavity filling
thread.
The latest development is that his books are now available on his App
(Mattheck). The next addition will be 'New Root and Crown Mechanics' which
should be available by late June
See you in May
Regards
Mick
-----Original Message-----
From: antony croft [mailto:hamadryad@xxxxxxxx.co.uk]
Sent: 14 March 2012 19:31
To: UK Tree Care
Subject: RE: Failure Potential of Dead Trees
I think Mathecks principle is essentially correct on standing deadwood, but
also widely over emphasised in practice, what I mean is if taken literally
and absolute no stump would ever be left any higher than 2 metres!
Mattheck loves nature as much as any of us, and doubt he would want to see
everystump cut to 2 metres but had to set the line at a basic principle! To
be certain I will ask him in May at the seminar!
There is a dead oak near my mothers house that has been dead all my life, it
still has all its limbs! im 40 in june!
But that birch riddled with piptoporus betulinus on the other hand?
I think it is relatively straight forward keeping deadwood in the environment
even the urban context, David Humphries manages it very well with 7 million
foot falls a year! (kenwood gate)
case by case isnt it?
tony
From: dscottcul@xxxx.net
To: uktc@xxxxxx.tree-care.info
Subject: Re: Failure Potential of Dead Trees
Date: Wed, 14 Mar 2012 11:22:03 -0400
----- Original Message -----
From: Edmund Hopkins
To: UK Tree Care
Sent: Wednesday, March 14, 2012 11:01 AM
Subject: RE: Failure Potential of Dead Trees
-----Original Message-----
From: Scott Cullen [mailto:dscottcul@xxxx.net]
Sent: 14 March 2012 14:53
To: UK Tree Care
Subject: Re: Failure Potential of Dead Trees
SC Both the fallen or felled stuff and leaving a standing dead stump
fall under an entirely separate set of considerations. Risk assessment and
management are one thing. Ecological management of stumps and debris is
another. In both there are landowner decisions to be made. It is not
clear to me that management of risk should be subordinated to retention of
woody debris. I should think on a community or population scale they could
be well balanced. On a single property scale they may be incompatible.
EH Well I would not subordinate the management of risk to an ecological
objective either. But sawn lumps walk, burn, roll down hills, fling
themselves into roads, also steal away. Long lengths generally do none of
these things.
SC2 There are some exceptions. I never got very enthused about
skiing because even standing trees would fling themselves in front of
me. Quite bothersome :)
......
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