Traditional Culture Encyclopedia - Weather forecast - Why do maple leaves turn green in spring and red in autumn?
Why do maple leaves turn green in spring and red in autumn?
Trees don't produce a lot of chlorophyll as in spring and summer before falling leaves, and the existing pigments, such as chlorophyll, will gradually decompose. In this way, with the gradual reduction of chlorophyll content, the colors of other pigments will gradually appear on the leaves, so the leaves will show yellow, red and other colors.
Expand the value of maple.
1. Maple trees are very ornamental. When maple trees form a maple forest, the scenery in late autumn is beautiful. There are four most famous maple scenic spots in China, which are called the four maple scenic spots in China. They are Xiangshan in Beijing, Tianping Mountain in Suzhou, Qixia Mountain in Nanjing and Yuelu Mountain in Changsha, Hunan.
Located in Yangbian Village, Yangxi Township, Taishun County, Zhejiang Province, the age of the tree is 1000, the height of the tree is 26 meters, the average crown width is 20 meters, and the DBH 1.75 meters. It is one of the top ten ancient and famous trees in Wenzhou, Zhejiang Province.
Maple trees are planted as ornamental trees by homeowners, enterprises and municipal councils. Acer is a common example, because it grows rapidly and is particularly cold-tolerant. In addition, Acer negundo is an invasive species in some areas. Especially small or rare maple varieties, are often made into specimens.
2. Wood, maple wood is one of the most valuable high-grade wood. Maple syrup Some kinds of maple trees can produce maple syrup.
3. Maple, Canada is called "the country of maple leaves". All provinces in Canada have provincial flowers and some have provincial trees, but they have not determined the national flower and national tree. In fact, maple and maple leaves have always been regarded by the Canadian people as national trees and flowers, and have become symbols of Canada's country and nation.
Baidu encyclopedia-maple leaf
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