Why are the leaves of the maple tree red in autumn

When the chlorophyll is gone, the color of the chlorophyll comes out.

Summary. Hello, because after autumn, the anthocyanins in the maple leaves increase, and the drop in temperature causes the chlorophyll to destroy and disappear, so the green leaves become red leaves.

The external factor of discoloration is the climatic conditions: when the temperature drops rapidly to a certain extent, and the temperature at night drops much lower than during the day, the leaves have not yet fallen and the chlorophyll has been largely destroyed, and the increase in the temperature difference between day and night also contributes to the formation of anthocyanins, so the leaves quickly turn red. If the temperature drops slowly, and the temperature difference between day and night is not large, the chlorophyll has not been destroyed and the tree has withered, then it will not become a beautiful autumn leaf.

Why do maple leaves turn red in autumn.

Hello, because after autumn, the anthocyanins in the maple leaves increase, and the drop in temperature causes the chlorophyll to destroy and disappear, so the green leaves become red leaves. The external factor of discoloration is the climatic conditions: when the temperature drops rapidly to a certain extent, and the temperature at night drops much lower than during the day, the leaves have not yet fallen and the chlorophyll has been largely destroyed, and the increase in the temperature difference between day and night also contributes to the formation of anthocyanins, so the leaves quickly turn red.

If the temperature drops slowly, and the temperature difference between day and night is not large, the chlorophyll has not been destroyed and the tree has withered, then it will not become a beautiful autumn leaf.

Hello, because after autumn, the anthocyanins in the maple leaves increase, and the drop in temperature causes the chlorophyll to destroy and disappear, so the green leaves become red leaves. The external factor of discoloration is the climatic conditions: when the temperature drops rapidly to a certain extent, and the temperature at night drops much lower than during the day, the leaves have not yet fallen and the chlorophyll has been largely destroyed, and the increase in the temperature difference between day and night also contributes to the formation of anthocyanins, so the leaves quickly turn red.

If the temperature drops slowly, and the temperature difference between day and night is not large, the chlorophyll has not been destroyed and the tree has withered, then it will not become a beautiful autumn leaf.

The maple leaf is fiery red, and the fiery red symbolizes enthusiasm and unrestrainedness, and the leaf shape of the maple leaf is different from other leaves, which is very special and unique. The ornamental nature of maple leaves is very strong, there are four most famous maple viewing spots in China, and they are called the four major maple viewing resorts in China, they are Beijing Xiangshan, Suzhou Tianping Mountain, Nanjing Qixia Mountain, Hunan Changsha Yuelu Mountain.

The degree to which maple leaves turn red is related to factors such as time, drought, pollution, and especially the lack of nitrogen. The reddening of maple leaves is actually the result of the maple tree's response to stress in nature. The reddening reaction actually acts as a sunscreen, allowing the maple leaves to stay on the tree longer, allowing the tree to absorb more nutrients.

Studies have found that nutrient stress, especially the stress of nitrogen deficiency, makes maple leaves red earlier and more transparently.

In autumn, chlorophyll gradually breaks down as the temperature drops, revealing the other pigments. In addition, the sugars stored in the maple leaves are also broken down and converted into anthocyanins, which make the leaves more bright red.

In autumn, the maple leaves will turn red, there are two factors, one is carotene and the other is anthocyanin.

The common colors of maple leaves are: green, yellow, and red.

Maple leaves change color depending on the season. In spring and summer, maple leaves are green, and chlorophyll is much more abundant in the leaves than other pigments, so the leaves show the green color of chlorophyll, and the color of other pigments is not visible.

When autumn comes, the maple leaves begin to lose their leaves, and before the leaves fall, the trees no longer produce as much chlorophyll as they do in spring and summer, and existing pigments, such as chlorophyll, will gradually break down. In this way, as the chlorophyll content gradually decreases, the colors of other pigments will gradually appear on the leaf surface, so that the leaves will show yellow, red and other colors.

Maple leaf chlorophyll gradually decomposes as the temperature drops, revealing the appearance of other pigments. The sugars stored in the maple leaves will also be broken down and converted into anthocyanins, making the leaves more bright red.

The color of the leaves we usually see is mostly green, which is actually the color of chlorophyll, which means that chlorophyll activity is high during the growing season.

As the temperature drops in autumn, the activity of chlorophyll is challenged, and the original chlorophyllin lutein in the leaves of some tree species occupies the right to control color.