157' beech

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#1)  157' beech

Postby Lucas » Thu Apr 16, 2015 9:17 pm

We travel the Milky way together, trees and men. - John Muir
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#2)  Re: 157' beech

Postby bbeduhn » Thu Apr 16, 2015 9:43 pm

...and a 165' cottonwood. Likely measured with tape drag and tangent. Beeches are tough enough to measure with laser & clinometer.  The errors on height could be 30' or more.
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#3)  Re: 157' beech

Postby Rand » Thu Apr 16, 2015 10:17 pm

bbeduhn wrote:...and a 165' cottonwood. Likely measured with tape drag and tangent. Beeches are tough enough to measure with laser & clinometer.  The errors on height could be 30' or more.


Oh crikey.  Did you look at the picture of the cottonwood (click on the name in the list)?  The whole tree has a severe lean:
               
                       
CW.png
                                       
               


On the plus side, most of the pictures are quite nice.
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#4)  Re: 157' beech

Postby Erik Danielsen » Thu Apr 16, 2015 10:39 pm

Both of those assertions seem positively reasonable by contrast to the 150' tall yellow birch, I have to say... though the photo indicates that it is, at least, of an impressive size for the species.
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#5)  Re: 157' beech

Postby Matt Markworth » Sun Apr 19, 2015 8:46 pm



Yikes, the beech also looks like two piths at ground level. As with any list, it's only as good as the measurers doing the measuring.

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#6)  Re: 157' beech

Postby dbhguru » Thu Apr 23, 2015 10:11 pm

Lucas, et. al.,

 I wouldn't call the list bogus in the sense of intentional misrepresentation. It is more an example of the flawed practice of measuring tree height with tape and clinometer, and perhaps the math-phobic state of mind of so many big tree hunters. We frequently see measuring errors of 20 to 50 feet in these state lists. However, there is light at the end of the tunnel. More on this point in a future post.

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Robert T. Leverett
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