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No Bill it wasn't facetious but I couldn't say for sure whether the
roots went round or under. However, given the layout I think it would
have been even more remarkable if they had gone round. This was Populus
x euramericana on a steep gravel slope over chalk and the suckers were
showing baby leaves on a not long unmown lawn along the contour.
Straight line distance around 35m from memory.
Gilbert Addison | Tree and Countryside Officer |Breckland Council
Office: 01362 656873 Fax: 01362 656297
DDI: 01362 656243 | Mobile: na
Elizabeth House, Walpole Loke, Dereham NR19 1EE
gilbert.addison@xxxxxxxxxx.gov.uk |www.breckland.gov.uk
-----Original Message-----
From: Andersonarb@xxxx.com [mailto:Andersonarb@xxxx.com]
Sent: 26 March 2008 17:25
To: UK Tree Care
Subject: Re: Find the CEZ
______________________________________________________________________
SPRING 2008 TRAINING FROM QUANTIFIED TREE RISK ASSESSMENT LTD.
QTRA Licensed User Training Workshops (Spring 2008)
9 Apr, York; 10 Apr Cambridge; 17 Apr, Guildford; 06 May, Exeter
Licensed User(existing)Update Workshops-23 Apr, York; 15 May, Guildford
For further information please visit our website at www.qtra.co.uk
______________________________________________________________________
In a message dated 26/03/2008 08:28:22 GMT Standard Time,
Gilbert.Addison@xxxxxxxxxx.gov.uk writes:
In the case of poplar I've
even seen them come up again the other side of a house! Sorry I haven't
answered your CEZ question.
This sounds facetious but It's not: Did the roots go under the house or
round Gilbert? There are seemingly stacks of trees in streets round here
where the terraced houses all have adjacent cellars and it seems the
trees must have some way of getting their roots somewhere less
inhospitable.
I have occasionally seen roots apparently sneaking down side passages
and you wonder whether they've somehow managed to develop a major
arterial(?) root that serves as a conduit for resources being garnered
some distance away...... And then when you see those massive Planes in
Provencal squares growing in solid cobbles you are forced to conclude
that something is going on about which we know nothing.
I find it fairly easy to imagine some trees managing to grow such
'conduit'
roots under streams, after all they all dry up sometimes and once the
conduit is established fibrous roots could develop in presumably
un-waterlogged soils beyond. If the conduit root then served merely as
a pipeline through the anaerobic conditions then this might answer the
conundrum.
Nonetheless I suspect Jerry's question would be solved by catgorising
the tree as R.
Bill.
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