Why do the green leaves drift in autumn? Why do the green leaves fall in autumn?

Because that's its life, it's its destiny, and it has to go on.

The leaves will fall, because autumn is coming, due to the shortening of the sunshine, the temperature is low due to the lack of water, the abscisic acid in the plant will be generated in large quantities, in order to reduce the transpiration of water, the locust leaky wood in the autumn to get rid of the lead rot of the leaves of the whole body in order to survive the winter safely. This is a normal physiological phenomenon of trees, and it is also a kind of adaptation of trees to adverse climatic conditions such as low temperature and drought.

The song expresses the grief that comes after the loss of love.

Singer: Tassel.

Composer: Yulu.

Lyrics: Mood (Tree Peak).

Arranger: Qin Sheng.

Singing: Tassel.

Late stage: Lei Sheng.

The wandering fallen leaves drift in autumn.

The birds are galloping and are about to go away.

Looking at the white clouds leisurely swimming.

Who stares speechlessly in the wind.

Heart-shaped autumn leaves swaying in autumn.

The water of the river flows quietly.

With thousands of greetings.

When to integrate into your source.

Reserved autumn leaves.

When the cycle of seasons is messy.

Do you still want to stay together?

Do you want to stop and stay.

The autumn leaves with shy veins.

How can you give up the branches of affection.

Green is really drunk with love.

Fall also with the wind light chin head.

Heart-shaped autumn leaves swaying in autumn.

The water of the river flows quietly.

With thousands of greetings.

When to integrate into your source.

Reserved autumn leaves.

When the cycle of seasons is messy.

Do you still want to stay together?

Do you want to stop and stay.

The autumn leaves with shy veins.

How can you give up the branches of affection.

Green is really drunk with love.

Fall also with the wind light chin head.

The autumn leaves with shy veins.

How can you give up the branches of affection.

Green is really drunk with love.

Fall also with the wind light chin head.

Fall also with the wind light chin head.

The grief that follows the loss of love.

The song expresses the grief that comes after the loss of love. Singer: Tassel Composer:

Yulu Lyrics: Mood (Tree Peak) Arranger: Qin Sheng Singing:

Tassels, late stage: Lei Sheng The wandering leaves are floating in autumn, the birds are about to go away, looking at the white clouds leisurely swimming, who is silently gazing in the wind, heart-shaped red leaves.

In autumn, when the temperature drops, several layers of fragile parenchyma cells form at the base of the petiole called delamia. After the separation layer is formed, it breaks at the slightest breeze, and the leaves fall down.

Autumn arrives, the leaves gradually turn yellow, and the wind blows down from the trees. So have you ever wondered why the leaves fall in the fall? Let's talk about why.

01 Autumn means the coming of winter, trees need to be dormant for self-protection, and overwintering dormant trees themselves also need nutrients, in order to regulate their own homeostasis, many trees need to fall leaves, reduce the loss of water and nutrients, save energy and wait until the conditions are suitable before germinating;Some trees such as pines and cypresses can remain evergreen because their leaves are like needle tips and have very little water loss.

02 When the temperature drops in autumn, several layers of fragile parenchyma cells form at the base of the petiole called stratification. After the separation layer is formed, it breaks at the slightest breeze, and the leaves fall down.

03 The phrase "autumn wind sweeping away leaves" is often used to describe the autumn scenery in temperate regions. When autumn arrives, the leaves of broad-leaved trees such as poplars and locust trees gradually age, and with the autumn wind, the yellow leaves quietly fall. You may feel sorry for the falling leaves, but have you ever thought that falling leaves are precisely the self-protection of trees?

Here are some passages that describe the fall of leaves in autumn:

1.The leaves bloom in the autumn with brilliant colors, the leaves sway with the wind, and in the distance, you can see the high judgment pie, like angels flying in the air, and from time to time there are strong leaves that leave the mother tree and fly away alone, some rest on the grass, and some roll on the ground ......

2.The leaves of the trees turned into butterflies and fell from the sky, drawing beautiful arcs. In that moment, it saw the beauty of the world, heard the call of the birds, and fulfilled its mission.

3.A gust of wind blew, and the withered yellow leaves fell in the air, like yellow butterflies fluttering. Under the illumination of the sun, so smart, so wonderful, as if you have stepped into a fairy tale world.

4.As soon as the autumn wind blew, the strange leaves flew all over the sky like butterflies, and when they were tired of flying, they returned to their mothers. They come in all shapes and sizes, from large to small, to single, to strings, to red and yellow ......

5.I was fascinated by the dynamics of autumn leaves. You see the leaves waiting for the command like a skilled dancer, and when the "hula" command sounds, the dancers who have been ready one by one, spin and fall from the branches.

They dance in the autumn breeze and are truly skilled: some are solo discos, some are double waltzes, and some are dancing in groups.

Autumn leaves change color, that is because the leaves of the plant mainly contain chlorophyll, making the leaves appear green, and the leaves also contain lutein, carotene, etc., in autumn and winter, plant physiological activities are weakened.

Cause the leaf chlorophyll to gradually decrease, lutein, carotene gradually appear, so that the leaves gradually turn yellow, when the plant physiological retardation, the sugar compounds produced by the leaves can not be transported back to the roots, accumulate in the leaves, and gradually form anthocyanins.

Anthocyanins appear red when exposed to acid, causing the leaves of certain acidic plants to turn delicate red. Such as sweetgum, maple trees, etc., there is a natural landscape where thousands of mountains are red and the forests are dyed.

Leaves are essential for the growth of trees, and it is also essential for the survival of humans. The leaves of the trees meet the sunlight, absorbing the moisture from the roots and the carbon dioxide in the air. At this time, the chlorophyll in the leaves begins to photosynthesize, constantly producing oxygen and sending it to humans through the leaves.

If there is a lack of chlorophyll in the world, then human beings will die due to lack of oxygen.

It turns out that the temperature drops in autumn and the light time is shortened, which affects the absorption capacity of the root system and the photosynthesis of leaves, so it cannot meet the growth and development of trees. Broad-leaved trees have many pores on the leaf surface, with more than 10,000 per leaf, and these pores are the gateway for water vapor and other gases to enter and exit. When the temperature drops and the air is dry, the water in the leaves evaporates quickly, but the ability of the roots to absorb water has been greatly reduced, and the water and nutrients are insufficient.

In order to survive the tree, the connection between the petiole and the leaf stem forms an isolation layer, and the leaves are cut off from the water **, coupled with the low temperature, the chlorophyll is destroyed, and lutein and so on begin to become active, so the leaves will turn from green to yellow and fall off, and return to the earth with the autumn wind. In fact, lutein, which turns leaves yellow, and chlorophyll, which turns leaves orange and red, are present in the leaves from the day they grow, but they are masked by the green chlorophyll.

Whether it is the breaking free of the leaves, or the unretaining of the tree, the autumn leaves will always fall one by one. When the autumn leaves are fluttering, I always have a nameless touch, and I always want to carve the flutter of autumn leaves with pen marks. When I gripped the tip of the pen, for some reason, my mind went blank again.

This may be fate, although I have never believed in fate, and I will not believe in it in the future.

I love Akiba, for no reason, just an inexplicable touch, but I always believe that Akiba-chan has a perfect reason for me to like it, just young. I didn't understand it. So, after every autumn, I would look at the blue sky and search for this perfect reason.

The years passed with the slight impact of the autumn leaves falling to the ground in that beautiful autumn of guessing and demolition, and I found nothing. After the omen, my mood will be like this late autumn - cool. At this moment, I am always very moved.

This is the crystallization of autumn leaves in my heart, smooth and transparent, but never able to speak.

In the flow of time, the boat was light, but I was lost. I felt more and more empty, a helplessness, and loved Akiba more and more. When the autumn leaves drift away, my inexplicable emotion becomes stronger and stronger.

So I dreamed on a moonlit night that I had become an autumn leaf and had been abandoned by a tree. When I woke up from the dream, the tears in the corners of my eyes told me everything - in reality, I was an autumn leaf, floating in the air, dancing with the wind, which seemed to be a kind of romance and freedom, but in fact it was a kind of emptiness, an indescribable pain.

From that moment on, I was less inexplicably moved, but more of a fear of emptiness and a more hidden pain. Of course, I also like autumn leaves, the inexplicable emotion and the hidden pain that autumn leaves bring me. But I don't want to continue to get lost in the flow of time, I want to straighten my bow and sail with the wind in the flow of time.

So, I thought, I am an autumn leaf, if it is not the tree's retention, but the tree's breaking, what kind of beauty would it be?

So I will stand in the bow of my ship, and gently dial the tide of time into my haven. Although I am not sure that I will reach the harbor of my dreams in the direction I go, I believe that as long as I always stand on the bow of my boat, I will always be able to sail around the ocean of my dreams. When the autumn leaves fall, I still have that empty beauty.

But I always believe that next autumn, when the last autumn leaves break free from the branches, there will be a special beauty that echoes in the late autumn sun!

When the autumn leaves fall, there will be another beauty, another beauty that cannot be predicted!

Due to the growth cycle of plants, by the time of each autumn, the leaves of many trees will senescence and fall from the trunk, and the leaves will fall due to gravity.

In autumn, the leaves secrete a separate hormone-like thing at the junction of the petiole and the branch, and when the temperature is low, the leaves will naturally fall when the wind is strong!