Which leaves change color in autumn and what color do they turn when autumn comes?

A: Too much;

As. Ginkgo biloba, red maple, green paulownia, tulipwood.

Safflower maple, black tree, red ruimu, hemp stalk, red leaf heather.

Wait a minute. The cause of the discoloration of leaves in autumn and the chemical contained in it is chlorophyll.

Relate. When autumn comes, the daylight hours are shorter and the temperatures are cooler than in summer, so the leaves stop producing chlorophyll and the remaining nutrients are transported to the trunk and roots for storage. The green chlorophyll is missing from the leaves, and at the same time, other chemical pigments are revealed, so we see more yellow and brown leaves.

Deciduous trees generally change their names to copper but expand their colors, such as ginkgo, plants of the Acer family such as red maple, maple, etc., maple incense, and the red leaves of Beijing Xiangshan.

Which trees turn yellow in the fall? There are poplars, elms, sycamores, mulberries, etc., and the leaves change in autumn.

1. Flame Euonymus.

Euonymus is a deciduous shrub with dark green leaves, but in autumn the leaves turn flame-red, and it has many branches, and the plant grows neatly, but slowly.

Flame Euonymus is a particularly well-maintained ornamental shrub plant, suitable for planting in the yard, it is extremely adaptable to the environment, and has good cold tolerance. In the summer, the flame euonymus will have a layer of oil on its surface and smell like lemon.

2. Suac. Lacquer is a kind of deciduous tree, it is more common in the northern region of our country, lacquer is also a kind of ornamental plant that will turn red leaves in autumn, it is easy to become a wild plant in the wild, few people will buy this kind of tree to plant, generally in the park, or relatively large courtyards to see, some grow on the side of the road and on the hillside.

3. Maple. The maple tree is a particularly common ornamental shrub and is particularly popular for growing as a shrub plant in the yard or as a small bonsai in a pot, and the leaves turn red, brown, and yellow in the fall.

4. Oak tree. Oak trees are ancient trees with a very long history, some can grow up to more than 100 years, so the trunk is particularly thick, and in recent years, there are many oak trees that have grown into shrubs, but they are more popular, and they are suitable for planting in the garden and are also good for ornamentation.

The leaves of the oak tree turn red in autumn. If you want to plant it in the yard, there must be a particularly large space, there is not enough space around the environment is not ventilated, it is impossible to grow well, and you must add some basic bark, perlite, etc. every year to ensure that the fertilizer and water are sufficient, so that its root system will grow deeper.

5. Five-leaf ground brocade.

Five-leaf brocade is a kind of creeper, can climb on the wall and fence to grow, some people also call it five-leaf ivy, the name is very many, it is a particularly easy to raise an ornamental plant, grow particularly fast, but also easy to become a wild plant.

The leaves of the five-leaf brocade will turn a beautiful red or orange in autumn, and in the wild, you can also see some trees climbing on the walls or trunks of the five-leaf brocade, which is easy to spread excessively.

1. When autumn comes, both poplars and ginkgo trees bow their heads, the leaves gradually change color, and there is no more spring green, and they become very fragile in the wind and rain.

2. Autumn is coming, whether it is a poplar or a ginkgo tree, the leaves have turned yellow, and a gust of autumn wind blows, and the leaves are like rain.

Because the leaves are affected by the climate, they change color when they don't get enough light or nutrients.

Because it contains related chemicals, it is related to chlorophyll, which will produce changes in color according to changes in temperature.

Because the climate warms up in the fall, the trees reduce photosynthesis in order to keep warmer for better warmth, so the leaves change color.

Categories: Education Academic Exams.

Analysis: The leaves are green because of the chlorophyll in the leaves. However, in addition to green pigment, there are many pigments such as red pigment and yellow pigment in the leaves, but the amount is very small.

In autumn, the green pigment slowly fades, and the red pigment and yellow pigment are revealed, making the forest a golden yellow or a fiery red, which is very beautiful.

When autumn arrives, the leaves of the trees in the mountains turn into beautiful colors, why is that?

It used to work hard in the summer, but when the weather cooled down, it stopped working. The nutrients produced by the leaves do not reach the branches and trunks, but settle in the leaves. The chlorophyll of the leaves is also destroyed, and it mixes with the nutrients left in the leaves or the withered brown color, which becomes a variety of beautiful colors.

Why do the green leaves change color in autumn?

All leaves contain green chlorophyll, which is used by trees to capture light energy and store it in the form of chemicals such as sugar with the help of other substances in the leaves. In addition to chlorophyll, many leaves contain other pigments such as yellow, orange and red. Although these pigments do not photosynthesize in the same way as chlorophyll, some of them are able to transfer captured light energy to chlorophyll.

In spring and summer, chlorophyll is much more abundant in the leaves than other pigments, so the leaves show the green color of chlorophyll, and the color of the other pigments is not visible.

When autumn arrives, the days are shortened and the nights are lengthened, which causes the trees to begin to lose their leaves. Before the leaves fall, trees no longer produce large amounts of chlorophyll as they do in spring and summer, and existing pigments, such as chlorophyll, 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.