Traditional Culture Encyclopedia - Weather inquiry - Does autumn leaves have anything to do with the weather?
Does autumn leaves have anything to do with the weather?
Many people have always believed that falling leaves in autumn is caused by the cooling temperature. In fact, this statement is not accurate Trees shed their leaves in autumn, which is actually related to the reduction of sunshine length and the dry climate in autumn. The sunshine time in autumn is much shorter than that in summer, and the photosynthesis of plants is weakened. In order to survive, plants have to shed leaves and reduce nutrient consumption in the body. The leaves of plants evaporate more water in dry autumn than in spring and summer, so the water supply is tight and the leaves have to be sacrificed to take care of the overall situation. At the same time, plant defoliation is also related to the changes of hormones in leaves, which makes autumn leaves fall off more easily.
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