Which trees have what characteristics, types and characteristics of trees

Sycamore tree: long-lived and resistant to toxic gases. Poplar tree: tenacious vitality and high adaptability to the environment. Ginkgo biloba.

It is the oldest relict plant among gymnosperms. Willow: The surface of the branch is smooth, the growth rate is fast, but the life span is short. Acacia tree.

to nitrogen dioxide, hydrogen oxide.

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1. Sycamore trees

Sycamore trees are deciduous trees.

The height of the plant is fifteen to twenty centimeters, the trunk is erect, the surface is smooth and the branches are numerous, and the color of the bark is green or dark green, in addition, the plane tree has a long life and strong resistance to toxic gases.

2. Poplar tree

The poplar tree is a plant with high practical value, its vitality is tenacious, and it has high adaptability to the environment, and is often used as a street tree.

planting, and the plant can absorb dust in the air, as well as purify harmful gases, to ensure that the air is clean and hygienic.

3. Ginkgo biloba

The ginkgo tree has a long lifespan and is one of the oldest relict plants among gymnosperms, with living fossils.

and the slow growth rate of the plant, if it is a ginkgo tree planted under natural conditions, it will take twenty to forty years to bear fruit.

4. Willow tree

The willow tree is a perennial shrub or tree, the surface of the branch is smooth, the color is tan, the long and narrow lanceolate leaves are sparsely grown, and the plant has strong adaptation to the environment, the growth rate is fast, but the life span of the willow tree is short.

5. Acacia tree

The acacia tree is the order Rosaceae.

Legume and deciduous trees, plant height up to 16 cm, diameter of 35 cm, leaves alternate, linear lanceolate shape, and plant resistance to nitrogen dioxide, hydrogen oxide.

<> "Different species of trees have different characteristics, here are some common tree characteristics:1Willow:

The branches of the willow tree are soft and curly, often growing near water or in moist environments, and the leaves are slender and often pale green. The bark of willow trees is often gray or black. 2.

Cypress: Cypress trees are often conical in shape, with gray or black bark, often triangular leaves, erect branches, and dense leaves. 3.

Pine: Pine branches are particularly strong and can often withstand the wind and rain. The leaves of pine trees are also elongated or needle-shaped, often dark green, and some varieties have bluish-blue leaves.

4.Elm: Elm trees are often round, with dense leaves and large leaves, and their trunks are shorter and thicker than other trees, with grayish-brown bark.

5.Oak tree: Oak branches are hard, often gray.

The leaves are ovate with wavy edges, and oaks often grow tall as well.

The types of trees are: willow, pine, elm, poplar, etcSycamore treesetc., their characteristics are different.

1. Willow

The willow tree is characterized by its soft and long branches, and many branches can hang down on the ground. In late spring and early summer, catkins are everywhere. It has a strong regenerative capacity and can be easily planted if the climate is suitable.

2. Pine trees

The characteristics of pine trees are mainly reflected in four aspects. First of all, the tree is larger, with a height of 45 meters and a diameter at breast height when mature. The second is that there are many species, about 80 in the world.

The third is longevity, with many species having a lifespan of more than 1,000 years. The fourth is adaptable, resistant to high temperatures, low temperatures, barrenness, drought, and easy to manage.

3. Elm

Elm is hardy, and the root system is developed, the life span can be as long as more than 100 years, the resistance to smoke and toxic gases is very good, elm is widely used in gardens, roads, courtyard shade, can also be used as a shelterbelt, the protection of water and soil is very good.

4. Poplar

Poplar trees grow fast in the early stage, have strong adaptability, wide distribution, many varieties, and are easy to reproduce asexually.

and other features. Poplars prefer cool and humid climates, have less strict requirements for soil, prefer deep, moist, fertile sandy soils, and generally grow on river beaches, river beaches, valleys and lakeshores.

5. Sycamore trees

Sycamore trees are characterized by tall trunks, lush foliage, rapid growth, easy survival, and long lifespan. It is native to China and is cultivated in both northern and southern provinces, especially in the Yangtze River basin.

It is often introduced to Europe and the Americas as ornamental trees, and most of them are ordinary street trees.

and ornamental trees for garden greening.

Characteristics of the treeCharacteristics of the tree: Trees can regulate the climate, maintain ecological balance, and make the air fresh; The tree has the characteristics of windproof and sand fixation, and can also absorb all kinds of dust; Tree secretions kill bacteria; Trees reduce noise pollution and protect human hearing.

Different trees have different characteristics. The shortest tree is the dwarf willow, which is only 3-5 cm tall. The saltiest tree is a wood salt tree growing in Heilongjiang, China, which has a salt content similar to that of ordinary edible salt.

The most poisonous tree is the arrow poison wood of Xishuangbanna in Yunnan Province and Haikang in Hainan Province, China, and the sap of the tree is white, but it is extremely poisonous, and it kills when you see blood.

Construction

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

In the part of the trunk is divided into five layers. The first layer is the bark, which is the top layer of the trunk that protects the tree and prevents the invasion of diseases, underneath the bark is the phloem, which transports the sugars from the leaves, and the third layer is the cambium layer, which is very thin and is the growing part of the trunk, from which all other cells come from.

The fourth layer is the sapwood, which transports water from the roots to the rest of the tree, and is usually lighter than the heartwood. The fifth layer is the heartwood, which is the old sapwood, and the two are collectively called xylem. The trunk is mostly heartwood.

When the tree grows, its roots entangle the soil beneath its body, preventing soil erosion.

1. (thick) and (strong) trees.

2. (tall) and (large) trees.

3. (short) and (small) trees.

4. (sparse) and (sparse) trees.

5. Dense and (many) trees.