UKTC Archive

Re: Risk of windthrow

Subject: Re: Risk of windthrow
From: Scott Cullen
Date: Dec 20 2007 11:38:13
The theory is that trees will grow in a manner that allows them to be stable 
in a given environment of wind exposure and soil type.  So seashore trees 
grow small and maybe windswept.  Forest stand trees grow tall with poor taper 
becuase they shelter each other.  Meadow or savana trees grow broad and 
spreading relative to height becuase they are in the open.

Change any variable... saturate the soil, create edge trees in a stand, 
increase wind speed by climate chnage, freak storm or changing surrounding 
surface roughness conditions... and trees may fail becuse that's not what 
they were adapted to.

There's a great Churchill quote that goes something like "the solitary tree, 
if it grows at all, grows strong," which was a metaphor for Britain.

SC
  ----- Original Message ----- 
  From: Dominic Scanlon 
  To: UK Tree Care 
  Sent: Thursday, December 20, 2007 6:21 AM
  Subject: RE: Risk of windthrow



  And you have to consider adaptive growth as well - does a tree on sandy
  soil grow differently to one on a claey soil - so that it an stand up?

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