James,

Spread is certainly worth recording and the giants of the eastern forests
represent one more max dimension we can track. But as Don says, spread is
treated in big tree lists and a subordinate attribute and is not so clear to
measure in a meaningful way. Measurement is not that hard, just time
consuming. It is likely not as repeatable as is height or girth by different
people measuring the same tree. This is a "muddy" dimension with no clear
easy methodology.

Will F. Blozan
President, Eastern Native Tree Society
President, Appalachian Arborists, Inc.
 
"No sympathy for apathy"

-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of James Parton
Sent: Sunday, January 10, 2010 2:39 PM
To: ENTSTrees
Subject: [ENTS] Re: Rucker Spread Index?

Will,

If they are tedious for you then I am gonna have fun
learning...ugh.....but yes, I can see spread is harder to do. I
figured that most sites probably would not benefit from having a RSI
but Congaree might be one exception.

JP

On Jan 10, 1:43 pm, "Will Blozan" <[email protected]> wrote:
> James,
>
> Good question, but one I don't have a good answer for. Spread measurements
> are a tedious formality to me, and I would not be interested in searching
> out the widest or average spread on a site just to have it. I am not sure
> they would be meaningful data and are notoriously prone to error due to
> subjectivity.
>
> Will F. Blozan
> President, Eastern Native Tree Society
> President, Appalachian Arborists, Inc.
>
> "No sympathy for apathy"
>
>
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On
>
> Behalf Of James Parton
> Sent: Saturday, January 09, 2010 2:07 PM
> To: ENTSTrees
> Subject: [ENTS] Rucker Spread Index?
>
> Bob, Will, Ed.
>
> ENTS uses Rucker Height Index and sometimes Rucker Girth Index to
> acertain a forest. Has anyone ever thought of a Rucker Spread Index?
> Would it be of any real use? I thought of that at Congaree since we
> did average spreads on quite a few trees.
>
> James P.- Hide quoted text -
>
> - Show quoted text -

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