What is the difference between autumn and summer leaves?

Most cities are planted on both sides of the streets, or in parks, with a dense canopy of large leaves, and in the hot summer, boulevards are formed, beautifying the city and absorbing a lot of carbon dioxide.

Then the oxygen is released to make the air cleaner and fresher, which not only plays the role of shading, but also plays the role of purifying the environment. In autumn, the cool breeze is slow, the temperature starts to drop, the light becomes less intense, and the leaves do not produce chlorophyll.

The green color slowly fades, and then lutein and carotene follow.

As it gradually increases, the amount of the two elements accumulated in the leaves determines the yellow and red appearance of the leaves, just like the maple leaves, and the patches of maple leaves form a beautiful autumn landscape, which may be the biggest difference.

The leaves of the trees in autumn are mostly yellow, except for a few trees, but in the summer, the trees are all green and lush in my opinion, and sometimes the sunlight shines through the gaps in the leaves, which makes it feel beautiful.

In my opinion, the biggest difference between autumn leaves and summer leaves is that the leaves are yellow in autumn, while they are basically green and full of life in summer. Because the leaves contain chlorophyll, lutein and carotene, the leaves in summer are dark green, because the summer sun is abundant, the rain is abundant, the leaves are growing at the same time, but also absorb a lot of rich nutrients and water, and at the same time, under the action of light and action, the chlorophyll gathers more and more, and the leaves turn from light green to dark green. In autumn, the leaves slowly turn yellow and fall off due to the temperature.

The main thing is that some leaves are different colors, like oranges and pines, which are evergreen all year round. The maple leaves turn red in the fall, and most of the leaves turn from green to yellow and then fall, like plane tree leaves, plum tree leaves, and so on.

Probably because of the difference in color, in summer are luxuriant leaves, but in autumn, the temperature gradually becomes colder, the trunk to retain water for the winter, not to transport nutrients to the leaves, the leaves have no water, after the wind blows, the leaves gradually yellow, and then wither.

The leaves are softer in spring, darker in summer, yellowish in autumn, not so bright, and dry and hard to the touch in winter.

Specifically, what tree species are scored, such as some evergreen trees, summer and autumn are no different. The leaves of the maple tree are green in the summer and turn red in the fall. And the leaves of poplars are also green in summer and turn yellow in autumn.

I am from the north, the autumn leaves in the north are golden **yellow, but a little fiery red, it is a beautiful maple leaf, but in summer it is basically the same, all green.

Actually, I think the biggest difference is that the leaves are green in summer and yellow in autumn, which is not quite the same, but they can all bring life full of life.

In summer, the greenery is thriving, and in autumn, the vitality of the leaves is lost.

In the summer, the leaves are full of vibrant colors, green, which makes me feel happy to see, and in the fall, the leaves are withered, and it is a little sad to see.

Autumn leaves:

1) Sycamore. The autumn wind is whining, blowing the leaves of the sycamore trees, there is no pretentiousness, only a chill. Walking under the plane tree, looking at the falling plane leaves, homesickness arises spontaneously.

2) Ginkgo. Ginkgo biloba is an excellent garden tree that is planted in famous mountains, monasteries, and even remote cities and villages in many provinces and cities across the country. In late autumn, the breeze blows through the fallen leaves, and the ground is full of gold. Best time to see from late October to early November.

3) Acer truncatum.

Acer truncatum is also called pentagonal maple.

The crown is large and shady, the tree shape is beautiful, and the leaves turn orange-yellow or red in autumn, and it is a famous autumn foliage tree. It is widely cultivated in the provinces of North China as a shade tree and street tree.

4) Purple leaf plum.

Purple leaf plum, alias: red leaf plum.

Prunus spp. in the Rosaceae family.

Small deciduous trees. It is distributed in North China and South China. The leaves are purple-red all year round, and it is a famous foliage tree species. Solitary plants are suitable for group planting, mixed with green leaf trees, forming a beautiful landscape in the green mountains and green waters. Best time to see 9 mid-November.

5) White wax. White wax is also known as the candle tree. Ash is a deciduous tree in the family Glaucaceae. It is produced in the northern and southern provinces. Ash.

The branches and leaves are luxuriant, the root system is developed, the germination force is strong, the fast-growing moisture resistance is also drought tolerant and barren resistance, and it is an excellent tree species for windbreak and sand fixation and berm protection. Its trunk is straight, the tree shape is beautiful, and it is a good tree species for greening and beautifying factories and towns. In autumn, the leaves turn yellow and are very beautiful.

1. The flame-like sycamore leaves seem to be the big pu fan.

2. In autumn, the leaves are fluttering in the wind, like a fluttering butterfly.

3. A gust of autumn wind blows, and the leaves slowly drift down, like golden butterflies dancing.

4. The leaves of the honey locust tree are very luxuriant and are a huge umbrella.

5. The sycamore leaves seem to be a bunch of cyan flames.

6. Leaves float through the air like dancing butterflies.

7. The dense branches and leaves are hands that only face to all sides.

8. Leaves fall from the trees like snowflakes.

9. The leaves are as green as a flawless jadeite.

10. Pine leaves stand on the branches like thin and long needles.

11. The green willow leaves are like the eyebrows of a young girl.

12. In autumn, the leaves fly down from the trees like cute birds.

13. A willow leaf fell into the water, like a flat boat.

14. Leaves are like boats waiting to sail away in the wind.

15. The leaves of the maple tree are like palms, and the leaves of the maple tree are like petals.

The hot summer days have passed, and Mother Autumn is busy putting on a golden autumn dress for the leaves. Before you know it, the ginkgo biloba in front of the window is also coated with a dazzling light. In the autumn wind, every leaf is swaying, "rustling, rustling", as if singing a cheerful song.

I couldn't help but put down the book in my hand and walk towards this piece of gold.

Look, that ginkgo tree is already green and yellow, and yellow is green. I picked up a ginkgo leaf that had just landed at my feet, and lo and behold, it was like a folding fan and a goose's paw, with a dark yellow leaf with a thin petiole without veins. The more I look at it, the more it looks like a folding fan, as if a god in the sky has sprinkled a folding fan and landed on the earth, and immediately, the mountain fan has become a tree full of yellow leaves.

I put my nose up and could smell the scent of the fan.

Look at the Hongzhou Pei Qifeng, the leaves that are as red as fire stand on the branches like palms, layered and dense. A gust of wind blows, and the leaves seem to be beckoning to you, as if welcoming you, and like a burning torch. From time to time, a few crimson maple leaves rolled like rolls, falling on the branches, some like red butterflies dancing, some like birds spreading their wings and flying, and some like dancers, spinning lightly in the air, slowly throwing themselves into the arms of Mother Earth.

Look, the green pine, still dressed in dark green clothes, looks stronger than the other trees. The needle-shaped leaves protect themselves like a knife, and the strong autumn wind does not dare to approach. If you're a close observer, you'll notice that the weather-beaten needles are starting to fall off.

They quietly fall to the ground and turn into dirt, giving the last of their strength to the tree to grow stronger in the future.

Yes! Autumn leaves are so beautiful!

The most common leaves in autumn are ginkgo, maple, cocoon, maple, sycamore leaves, sweetgum, maple, maple, maple, and Japanese red maple.

Ginkgo biloba (scientific name: Ginkgo biloba L.).) is a deciduous tree of the family Ginkgo and Ginkgo biloba. Ginkgo biloba appeared hundreds of millions of years ago and is the oldest relict plant among gymnosperms left after the Quaternary glaciation.

Hundred-year-old trees are rare, and all other plants of the same class are extinct, so ginkgo biloba is also known as a living fossil. There are 26 varieties and varieties: yellow-leaved ginkgo, tower-shaped ginkgo, split ginkgo, weeping ginkgo, spotted leaf ginkgo and so on.

The fruit of the ginkgo tree is commonly known as ginkgo fruit, so ginkgo biloba is also known as ginkgo tree. Ginkgo biloba grows slowly, has an extremely long lifespan, and it takes more than 20 years from planting to bearing ginkgo fruit under natural conditions, and it can bear a large number of fruits after 40 years, so some people call it it"Gongsun tree", there is"The male breeds and the grandchildren get food"The meaning is that it is the old birthday star in the tree, which has ornamental, economic, and medicinal value.

The morphological characteristics are as follows:

Ginkgo biloba is a deciduous large tree, DBH can reach 4 meters, the bark of young trees is nearly smooth, light gray, and the bark of large trees is gray-brown, irregular longitudinal cracks, rough; There are long branches and slow-growing short-talitated branches.

The canopy of young and mature trees is conical, and the old ones are broadly ovate. The branches are nearly whorl, stretching obliquely upwards (the large branches of the female plant are often more spread than the male plant). The annual long branches are pale brownish yellow, and the more than two years old turn gray with fine longitudinal cracks; The short branches are densely covered with leaf marks, black-gray, and long branches can also grow on the short branches.

The winter buds are yellowish-brown, often oval, with a blunt apex.

Autumn has arrived, and the leaves are falling one by one, like a withered leaf butterfly resting on the ground;

When the autumn ruler arrives, the leaves fall one by one, like butterflies fluttering;

Autumn came, and the leaves of the trees fell one by one, like yellowed letters from the trees to the earth;

Autumn has arrived, and the leaves have fallen one by one, just like autumn has brought to the earth, and the children who are about to grow up are still alive without the bondage of their mothers;

Autumn has arrived, and the leaves are falling one by one, like angels in yellow dresses flying down from the trees.

What are the autumn leaves?

The autumn foliage is colorful. There are maple leaves, holly leaves, ginkgo biloba leaves, and mountain ash leaves. The leaves have their own pattern, and the maple leaf has five small petals, each with a stem.

As for the leaves of the ginkgo tree, there is not even a single stem, all of them are smooth leaves.

Autumn leaves are strange. All the leaves have their own shape. The maple leaf is like a small flower, the sweet chestnut leaf is like a caterpillar, the ginkgo leaf is like a fan, as if it can help the flower cool down, and the holly leaf is the strangest, that is, it is not like a leaf, but it is not like anything.