为什么树在同样的风速下会折断?[![风暴克劳斯对兰德斯森林造成的破坏][1]][1]图片来源:[维基共享资源](https://commons.wikimedia.org/wiki/File:St_Pierre_du_Mont_Klaus_3.JPG)请注意,在上图中,几乎所有的树木都被折断了顶部。这一说法是关于树木被折断成两半,而不是关于树木倒下或被连根拔起。这一说法对许多种类的树木都大致有效。显然橡树比松树能承受稍高的风速。这种说法不适用于棕榈树等非木质树木。对于那些进化到可以生活在风速偶尔超过42米/秒(相当于二级飓风)的地区的木质树木来说,这也是不正确的。我只是不明白是什么原因导致这种行为对所有大小和类型的树都有效。最近一篇关于这一主题的论文的作者将其归因于进化。 While winds frequently exceed 30 m/s (126 km/h), they very rarely exceed 50 m/s (180 km/h). The sweet spot in a tree's ability to sustain winds is between these limits. A tree that is too flimsy will be snapped by a heavy gale, won't live to maturity, and won't spawn offspring. A tree that is too sturdy is wasting precious energy building unneeded structure. References: [Critical wind speed at which trees break.](https://journals.aps.org/pre/abstract/10.1103/PhysRevE.93.023001) [Trees, regardless of size, all break at the same wind speed. Here’s why.](https://www.sciencemag.org/news/2016/02/trees-regardless-size-all-break-same-wind-speed-here-s-why) [1]: https://i.stack.imgur.com/a31pA.jpg
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