Nature is a kind mother and a cold butcher. ------Hugo

Without a clean environment, no matter how affluent living conditions are, it is meaningless. ------Qu Geping

People can only live according to the experience revealed by nature. ------Schopenhauer

In the small building with two willow branches, the graceful and graceful man has been accompanying the drunkard for many years.

--"Willow Branches" Tang Dynasty. Bai Juyi

The village flag praises the white lotus flowers of the wine, and the drums and sails are green with willows.

--"Yangliuqing" Ming Dynasty. Wu Chengen

The weeping willows blow on the green water, making the east wind shine brightly.

--"Breaking Willows" by Li Bai, Tang Dynasty

Platinum is exchanged for green pine trees. Since you planted them first, I will not plant them.

--"Pine Tree" Tang Dynasty. Bai Juyi

The hometown is also like a smoke tree. The geese do not come and there are many winds and rains.

--"The Holly Tree in Wanling Pavilion" by Zhao Gu, Tang Dynasty

The path leading up to the hall was not sloping in the past, and was covered by five peach trees.

--"Inscription on the Peach Tree" by Du Fu of the Tang Dynasty

The autumn wind blew the bridge trees one night, and tomorrow they will no longer be the same.

--"Autumn Trees" by Lu You, Song Dynasty

It is said that there is no such tree in Shanglin, and only peach and willow trees are used to predict the beauty of the year.

--"Pomegranate Tree" Tang Dynasty. Bai Juyi

The Luoluo group is not a beech, but the green and immortal is not the Yangmei.

--"Ping Wei Shaofu's class looking for pine trees to plant" by Du Fu of the Tang Dynasty

The willows are like silk and the wind is easy to mess up, and the plum blossoms are like snow and it is difficult to disappear in the sun.

--"Han Yin Ting Tree" Tang Dynasty. Zhao Gu

Trees are tall woody plants, consisting of "branches", "stems" and "leaves" Present and can survive for decades.

Arbors are generally called trees. They have an obvious upright trunk. The plants are generally tall, and the branches are higher than the ground, forming a crown. There are many kinds of trees. In common parlance, larger shrubs are also called "trees", such as pomegranate trees, tea trees, etc.

Trees are the general term for woody plants, which can be divided into trees, shrubs and woody vines. Trees are mainly seed plants. Among ferns, only tree ferns are trees. There are about 8,000 species of trees in China. Divided into banyan trees; poplar trees; willow trees; cypress trees, etc.

The four main parts of a tree are roots, trunk, branches, and leaves. Tree roots are underground, and there are many roots at the base of a tree.

The trunk part is divided into five layers. The first layer is the bark. The bark is the surface layer of the trunk, which can protect the tree body and prevent disease invasion. Below the bark is the phloem, which is a layer of fibrous tissue that transports sugars from the leaves. The third layer is the cambium layer. This layer is very thin and is the growing part of the trunk from which all other cells originate. The fourth layer is sapwood. This layer transports water from the roots to all parts of the tree. This layer is usually lighter in color than the heartwood. The fifth layer is the heartwood, and the heartwood is the old sapwood. The two are collectively called xylem. Most of the tree trunk is heartwood. As the tree grows, its roots will tightly entangle the soil under its body to prevent soil erosion.