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有些树叶为什么秋天会变黄

宋代范仲淹在著名的《苏幕遮》的前半阙里写道:“碧云天,黄叶地,秋色连波,波上寒烟翠。山映斜阳天接水,芳草无情,更在斜阳外。”那么进入秋天,树叶为什么会变黄呢?

有些树叶为什么秋天会变黄
有些树叶为什么秋天会变黄有些树叶为什么秋天会变黄 有些树叶为什么秋天会变黄

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有些树叶为什么秋天会变黄

“Day of green jade cloud, yellow Xie De, autumn scenery Lian Bo, cold smoke is emerald green on wave. Hill mirrors setting sun day to receive water, fragrant grass callosity, more outside setting sun. More outside setting sun..

The person that likes word of Chinese classic poem knows, this is adj/LIT wide of Song Daifan intermediate is famous ” revive act block ” before half fault. The nature that makes a person impressive most among them is in front 6 words: One tall one low, one green jade fizzles out, on paper of sensory appear vividly. The leaf of this green how at a draught ” yellow ” ?

Chlorophyll is contained in all leaves. The action of chlorophyll is to capture light energy and the formal memory that plays a light energy to wait for chemical material with candy in the help of other material in leaf rises. Actually, outside dividing chlorophyll, yellow, orange and red still are contained to wait in a lot of leaves a few otherer pigment. Although these pigment cannot resemble chlorophyll undertaking photosynthesis euqally, but among them a few can deliver captured light energy to chlorophyll.

In spring and summer, chlorophyll wants to be abounded more than other pigment in the content in leaf, so leaf presents the green that gives chlorophyll, and the color that does not see give other pigment. When the autumn comes, tree makes many chlorophyll in that way like spring and summer no longer, and already some pigment, for instance chlorophyll, also can decompose gradually. Such, as the drop off of chlorophyll content, the color of other pigment can be on face of blade show gradually, then the leaf appears piece yellow, red wait for color. Of the maple leaf that free Shan Gong alls over forming also is this truth.

Understanding more and Chlorophyll Leafrelevant trivia!

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