May

16

 Here is an interesting general hypothesis about the tree snapping point where there is not complete agreement on the conclusions amongst the experts.

1. "Do All Trees Snap at 94 mph?"

"So although a short tree has smaller stress points for cracks, it is thinner and could more easily split. On the other hand, a tall tree has width and stiffness going for it, but larger internal flaws undermine its sturdiness."

2. "Trees break at fixed wind speed, irrespective of size or species"

"Barry Gardiner, a silviculturist at INRA Bordeaux-Aquitaine who specializes in wind damage and was not involved in this study, calls the work very interesting, and a good springboard for helping us to understand better the controls on wind damage in trees. Gardiner cautions, however, that the conclusion of a weak dependence of critical wind speed on tree height appears contradicted by previous studies of storm impacts – which have reported that tree height is a very important predictor of the likelihood of damage. "From a biological point of view, it makes a lot of assumptions that simplify the natural world," he adds – noting that the model assumes a steady wind state and complete branch shedding, two factors that are not typically reflected in real storms. "Another thing that's important to remember is that trees are living, so they're adjusting and acclimating to their environment all the time – they're not a passive engineering structure.""


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