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加拿大

爱德华王子岛的森林和树冠,加拿大 (© OliverChilds/Getty Images)

爱德华王子岛的森林和树冠,加拿大 (© OliverChilds/Getty Images)

秋天的鲜艳色彩(Vibrant colours of Fall)

每年秋天,当大自然上演一场色彩鲜艳的时装秀时,我们都想逃到户外去。随着气温趋于凉爽,白天变短,植物合成食物所需的叶绿素数量也变得稀少。当这种情况发生时,落叶树的叶子开始失去绿色色素,露出黄色、橙色和红色。
原文:
Every Fall, when nature puts on a fashion show sporting vibrant colours, it makes us want to escape into the great outdoors. As the temperatures tend to cool and the days get shorter, the amount of chlorophyll available for plants to synthesize food, becomes sparse as well. When this happens, the leaves of deciduous trees begin to loose the green pigment, exposing hues of yellow, orange and red.
《© OliverChilds/Getty Images》