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树可以长到多高？- 瓦伦丁·哈姆迪
1,502,085 views
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瓦伦丁·哈姆迪 |
TED-Ed
• March 2019
Read transcript
观看完整课程：https://ed.ted.com/lessons/how-tall-can-a-tree-grow-valentin-hammoudi 加利福利亚的红杉可以高达100多米，居地球6万多的树种之冠。但是，这些巨树似乎也有它的极限：记录里，还没有能超过130米的。那么，到底是什么在阻止树木的生长，让它们不能无限止长下去呢？瓦伦丁·哈姆迪研究了为什么树的高度有极限。 课程讲解：瓦伦丁·哈姆迪，动画制作：道格·阿尔伯茨。
nature
evolution
biology
trees
TED-Ed
natural resources
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