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Re: Tree Root related subsidence and Woodland TPO's

Subject: Re: Tree Root related subsidence and Woodland TPO's
From: Adam Hollis
Date: Jun 06 2006 06:15:28 

On 5 Jun 2006, at 22:26, uktc-request@xxxxxx.tree-care.info wrote:


Date: Mon, 05 Jun 2006 13:51:04 +0100
From: "James Royston" <jimboroyston@xxxxxxxx.com>
Subject: RE: Tree Root related subsidence and Woodland TPO's
Even where root grafts don't exist the indivividual trees within a
woodland
will presumably all be utilising the same volumes of soil. I'm
guessing
that the recommendation to remove individual trees is made in an
attempt to 
reduce the overall soil moisture uptake.
Has any research been done on the effects of removing individual
trees from
a woodland setting and the effect on soil moisture? I wouldn't be
surprised
if there's some old forestry and water catchment research on it
somewhere. 

Best regards,

James
Absolutely, you can only have so much mean annual increment and leaf
area per unit area.
Thinning tries to maximise its efficient distribution, rather than
reducing it.
However, overthinning can cause a temporary set back, while the stand
struggles to re-utilise the whole site.
But we're only talking a couple of years here, unless the stand then
gets blown over. 

Regards

Adam


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