问:高山上的树木为什么长得矮小? 答:有人认为主要由于缺乏水分和山高风大之故。除此之外,紫外线的照射则是更重要的因素.在山顶,大气稀薄,阳光容易透过,可见光的总量多,特别是紫外线更易透过.大家都知道,紫外线对植物的生长(细胞的伸长)有强烈的抑制作用,所以高山上的树木长得就比较矮小. Q: Why do trees in the mountains look short? A: Some people think that the main reason is the lack of water and mountains and winds. In addition, ultraviolet radiation is more important factor in the top of the mountain, the atmosphere is thin, the sun easily penetrates, the total amount of visible light, especially ultraviolet light more easily through. As we all know, the growth of plants on UV (cells Elongation) has a strong inhibitory effect, so the trees on the mountain grow shorter.