Tallest Tropical Tree Climbed. It's over 300'

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#1)  Tallest Tropical Tree Climbed. It's over 300'

Postby M.W.Taylor » Sun Mar 12, 2017 8:05 pm

The 94.1m LiDAR measured tree in Danum Valley, Borneo has been climbed and measured by direct tape drop. Result is 93.0 m, or 305.11 ft

http://www.theborneopost.com/2017/03/11 ... um-valley/  

The 93m figure is from the averaged ground level. 95.2 low side and 90.8 high side measurements from a climber deployed tape line.

Now that we know there are 300 ft class trees in Borneo, one has to wonder what was cut down in the past, and how much above 300' did they get ?

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#2)  Re: Tallest Tropical Tree Climbed. It's over 300'

Postby mdvaden » Sun Mar 12, 2017 11:23 pm

M.W.Taylor wrote:The 94.1m LiDAR measured tree in Danum Valley, Borneo has been climbed and measured by direct tape drop. Result is 93.0 m, or 305.11 ft

http://www.theborneopost.com/2017/03/11 ... um-valley/  

The 93m figure is from the averaged ground level. 95.2 low side and 90.8 high side measurements from a climber deployed tape line.

Now that we know there are 300 ft class trees in Borneo, one has to wonder what was cut down in the past, and how much above 300' did they get ?


Maybe keeping track of height increase for the next 10 or 20 yrs. will give a hint of insight to the potential.
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#3)  Re: Tallest Tropical Tree Climbed. It's over 300'

Postby KoutaR » Mon Mar 13, 2017 5:18 am

Great news! 4.4 m between the highest and lowest ground level - I would not have believed so tall tree can grow on so steep slope.

I hope they will measure (some of) the other 49 trees over 90 m according to LiDAR. Interesting to see which species they are.
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#4)  Re: Tallest Tropical Tree Climbed. It's over 300'

Postby mdvaden » Mon Mar 13, 2017 11:38 am

KoutaR wrote:Great news! 4.4 m between the highest and lowest ground level - I would not have believed so tall tree can grow on so steep slope.

I hope they will measure (some of) the other 49 trees over 90 m according to LiDAR. Interesting to see which species they are.


That's shouldn't be unexpected. Fairly common in the coast redwoods, for example. This Borneo tree has 13 ft. to 14 ft. between high and low side. Foe comparison, the Grogan's Fault -  http://www.mdvaden.com/redwood_grogans_fault.shtml - found in 2014 has about 12 ft between high and low, which is comparable, but it's really not very steep.   But, if the stem were much more narrow with that variation between high and low, that would be rather steep.

But a good number of redwoods that Taylor and Atkins measured over the past 20 years or so, easily had twice a tall man's height of difference between upslope and downslope.
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