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冬季风凛气寒冬季风凛气寒,万物萧索,唯松柏保持青翠不凋,故孔子云:“岁寒然后知松柏之后凋也寒然后知松柏之后凋也。”松柏何以四季常青?今天的科学是这样解释的解释的:松柏叶片尖细,角质(蜡质)层发达,表面积与容积之比小,气孔下陷气孔下陷,厚壁组织充分发育,所以叶绿素不易在低温下分解。而普通的落叶树木则因叶片较大普通的落叶树木则因叶片较大,表面又没有蜡质薄膜,水分散失快快,不易存活,故秋冬季变黄陨落。这种解释推究事理本原,对则对矣对矣,却并不合中国传统的视物之见。岁寒时尽,草木尽凋,唯松
Winter cold wind cold cold winter monsoon cold cold, all things Siu Suo, only cypresses remain green does not wither, so Confucius said: “After the cold and then know the pine and cypress after the cold withered pine and cypress withered.” "Evergreen Evergreen? Today’s science is interpreted as follows: Cypripedium leaf blade is thin, keratinous (waxy) layer developed, the ratio of surface area to volume is small, stomatal subsidence stomatal, thick-walled tissue fully developed, so chlorophyll is not easy to decompose at low temperatures. The ordinary deciduous trees because of the larger leaves of the deciduous trees because of larger leaves, the surface is no waxy film, fast water loss, not easy to survive, so autumn and winter yellow fall. This interpretation of the root causes of things is justified, but they do not conform to the traditional view of things in China. To do when the cold, vegetation withered, only loose