What are the fast-growing tree species commonly used in landscaping?

Fast-growing tree species: under the same time and relatively suitable site conditions, the tree height growth and ground diameter growth are faster, and the mature forest period is early. Fast-growing tree species are not only one of the best species for cultivating short-term industrial raw material forests, but also often used for greening surrounding and coastal shelterbelts.

The following are some common fast-growing tree species for landscaping:

1, eucalyptus

Eucalyptus, native to Australia, is one of the three world-famous fast-growing trees and the most valuable hardwood. There are as many as 945 species of trees, with a large distribution span. There are also great differences in performance. Introduced and cultivated in more than 0/00 countries in the world. They all show excellent characteristics such as strong adaptability, fast growth, fast growth and high yield, high yield and short cycle. Generally, 6-8 years of main felling and one planting. Log 2-3 times. It is one of the best tree species to cultivate short-period industrial raw material forest, and it is also an excellent tree species for surrounding greening and coastal shelter forest. Since 199 1, the introduction of eucalyptus grandis and other varieties in our province has achieved good results, and it has been listed as a key forestry extension project in Fujian Province.

2. 1 Populus tomentosa

Populus tomentosa is a famous deciduous tree with a height of 30-40 meters. It grows very fast, and it is no problem to grow up in 10 years. Because the wood material is light and thin, light yellow-brown, flat in texture and easy to process, it can be used in architecture, furniture, plywood, paper making and man-made fibers.

The trunk of Populus tomentosa is straight, and the tree is tall and broad, which is quite majestic. In addition, it also has strong anti-smoking and anti-pollution ability, and is often used as a street tree. Salicaceae is a dioecious plant, and the male plant of Populus tomentosa blooms earlier. In the first half of March, the leaves were covered with black "caterpillars" (the inflorescences of Salicaceae plants are mostly catkins (ti four tones), like a drooping dog tail grass spike). When the leaves grow out, the black "caterpillars" are all gone, so the male plants do not float. The annoying catkin is the fault of the female plant. At first, the inflorescence of the female plant was black like a caterpillar, but the "caterpillar" did not fall, and soon turned green and grew with the leaves. In mid-April, leaves covered the crown and the crown began to float.

2.2 Chinese white poplar

Populus tomentosa is 1973 an excellent tree species discovered by the masses in Xiajin County, our province. Belonging to Populus tomentosa, it has the characteristics of fast growth, straight dry end, narrow crown and deep root, and strong disease resistance. In the past two years, seedlings have developed rapidly, and now they have been extended to chiping, Tai 'an, Jinan, Shanghe and other places.

3. Sophora japonica with big leaves and fast growth

Sophora japonica with large leaves and fast growth has unique physiological characteristics of high resistance;

First, the physiological drought and cold resistance are strong and the growth is fast. Sophora japonica is a tree species in ecological amplitude and a broad-leaved tree with strong drought resistance. In an area where the annual precipitation is only about 200 mm, it is still lush. The 7-year-old fast-growing Sophora japonica has a DBH of 26 cm and a height of 1 2 m. No one died after 60 days of continuous drought when it was planted on a beach with a thickness of 1.8 m.

Second, the root system is developed and the regeneration ability is extremely strong. Sophora japonica has developed root system, obvious root depth and strong horizontal root. Strong tillering ability and regeneration ability, new plants can germinate after the horizontal root system is extended or cut off, and individual plants can be extended into forests. 1000 fast-growing Sophora japonica seedlings. After removing the seedlings and roots, 4,000-5,000 new plants can be sprouted by using the residual roots in the second year.

Third, the fast-growing Sophora japonica with big leaves has strong barren tolerance. Robinia pseudoacacia is a leguminous nitrogen-fixing tree species, and its nitrogen-fixing ability is better than that of soybean and other leguminous trees. It is a "biological nitrogen fertilizer bank", which can improve soil properties and fertilize soil fertility. Resistant to barren soil, Sophora japonica grows vigorously as usual in desertification and rocky desertification areas with extremely barren and arid soil.

Fourthly, Sophora japonica is a multifunctional and efficient tree species. The unique physiological resistance of Sophora japonica can be used for ecological construction and environmental management in desertification, desertification and rocky desertification areas on a large scale. It is also a super-high quality feed with fast growth and high yield, and is known as the "king of branch and leaf feed". Branches and leaves have high nutritional value. Dry leaves contain about 265,438+0%-25% of crude protein and 4%-5.5% of crude fat, which belongs to high-energy feed. Fast-growing and high-yielding, Sophora japonica grows fast. In that year, the planting height was 3 -4 meters, and the yield of fresh stems and leaves per mu could reach 1000-20000 kg, ranking first among all leguminous grasses. Good palatability, high digestibility, all kinds of livestock and poultry like to eat.

4. Bamboo willow

Bamboo willow is a new willow variety, which is made of a variety of genetic germplasm materials through high-tech hybridization. Because of its genetic basis of many plants, it not only has all the excellent characteristics of willow, but also has the characteristics of fast growth, strong resistance and good material compared with other new willow varieties. It is a very rare high-quality fast-growing timber forest tree species. At present, when vigorously building artificial fast-growing forests, experts believe that poplar area is very large, which conflicts with the correct idea that building mixed forests at the national macro level is conducive to pest control. In the past, the old willow varieties grew slowly, curved and had a particularly large crown, which could be used as garden decoration and cool in front of the house. Because the planting density is extremely low and the economic benefit is low, almost no one goes to large-scale development.

5. Populus tomentosa, a fast-growing tree with bright leaves.

Populus tomentosa is a budding variety of fast-growing poplar red leaves in 2025. In addition to ornamental colored leaves, it has all the fast-growing characteristics of fast-growing poplar in 2025, and its cultivation has dual values of ornamental and wood. The root system of Populus tomentosa seedlings cultivated by plant cloning technology is developed and the seedlings grow vigorously. The growth rate is faster than that of ordinary methods, and the purity can be absolutely guaranteed. For large-scale growers, the price of seedlings we supply is more competitive in the market. In order to facilitate your introduction of seedlings, our company can provide you with seedlings nearby in Beijing, Shandong, Jiangsu and other places, and can guide the cultivation, ensure the survival rate of more than 95%, and provide branches with full axillary buds, high lignification and suitable for cutting.

6, fast-growing catalpa bungeana

Fast-growing Catalpa bungeana is a rare variety cultivated by universities and scientific research institutions in Henan Province for many years. Its characteristics are straight trunk, complete crown, small taper and beautiful trunk shape; The bark is smooth and intact, red and green, with big green leaves. It has high ornamental and aesthetic value and is one of the best varieties for greening, beautifying and optimizing the environment. Fast-growing Catalpa bungeana has strong vitality and fast growth, which is more than 40% faster than common Catalpa bungeana. It is suitable for planting in Fuyang city and the vast areas of the Yangtze River basin.

7. Fast growing ash

Fast-growing Fraxinus mandshurica (Populus tomentosa) is a new generation of optimized tree species of local Fraxinus mandshurica! It inherits all the advantages of local Fraxinus mandshurica, and at the same time, it has greatly improved its growth speed, emergence stage and ornamental value by more than 2-3 times. It is the first choice for saline-alkali land, wetland embankment slope and urban greening. It is also the first urban greening project with late leaves! Warmly welcome friends from all walks of life to visit and guide cooperation! (3) Characteristics: 1, fast growth, 35%:2 Compared with ordinary ash materials, it has large genetic gain, good dryness, straight trunk, tall seedlings and no shortcomings of ordinary ash; 3. The green period is long, and the fallen leaves are about one month later than ordinary ash. The green color lasts until the middle and late months of 1 1 until the frost and snow come and the leaves freeze to death on the trees. The main characteristics of fast-growing ash trees are: brown-green bark, smooth and shallow, straight trunk, complete crown and short and thick branchlets. 2-3-year-old seedlings have turquoise trunks and smooth and delicate bark. At that time, the branches were light green, and each compound leaf had five leaflets. The leaves are narrow, oval, 5-7 cm long and 3-4 cm wide. Leaflets are almost sessile, the leaves in the middle and lower parts of the leaves are all green, and the upper parts are shallowly serrated. The pages are smooth, the vision is heavy and bright, and the feeling is heavy. It is the main afforestation tree species in saline-alkali areas. Since it was put on the market, it has brought objective economic benefits to some seedlings and a novel feeling to some urban green belts. ) saline-alkali soil zone, wet depression and arid zone ... the adaptability is particularly strong! Resistant to pests and diseases, strong ability to resist sandstorm! Urban greening, road greening, air filtration, etc.

8. Fast-growing paulownia

Fast-growing paulownia is a new type of paulownia propagated by cutting. Compared with old-fashioned paulownia, it has superior conditions, fast growth and tenacious vitality, which can help urban greening to be more vivid and powerful. It is one of the first choices for urban greening in the future. Fast-growing paulownia is a new type of paulownia cultivated by farmers. Its branches, leaves and shapes are not much different from ordinary paulownia. Branches are greener and have stronger growth ability than ordinary paulownia. Fast-growing paulownia is a new tree species cultivated in recent years according to the needs of paulownia market. At present, the specifications of fast-growing paulownia that can be supplied in paulownia base mainly include: fast-growing paulownia with a diameter of 8 cm-25 cm per meter. Cultivation techniques: Pruning fast-growing paulownia is cut into strips of 10-20 cm from annual paulownia seedlings, and each segment is guaranteed to have 1-2 buds. Before cutting, soak the cut branches in water and wait for cutting. The land requires soft cutting, and it is best to apply appropriate amount of chemical fertilizer to ensure the nutrition of the land. Early spring is the best time to prune. Every two branches are 30-40 cm apart. In the later stage, after cutting, it is flooded with water, waiting for the branches to sprout. After a branch has multiple branches, keep the thicker and straighter branches, cut off the rest, and let the best branches develop into branches. The price of fast-growing paulownia is about 50% higher than that of the old paulownia with the same specifications, but it is still very popular. The price of fast-growing paulownia has gradually become the benchmark of paulownia prices all over the country, and it has been favored by many greening construction units for its unique greening effect, with broad development prospects.

9, fast-growing willow

Fast-growing is characterized by fast growth and high yield. Compared with common willow, the hybrid strain of LEIDLNC willow grows faster, with the annual seedling height of 5-8 meters and the ground longitude of 6-200px. Fast-growing willows can be introduced and distributed without squatting after afforestation, and the cultivation period is shortened by 3-6 years. Hebei, Tianjin, Beijing, Inner Mongolia, Shaanxi, Shanxi, Henan, Yunnan, Ningxia and other regions.

10, purple leaf plum

Prunus purpurea, also known as Prunus Canada and Prunus Rosaceae, is a tall or short deciduous tree.

The plant height of Prunus purpurea is usually 6- 12 meters, the highest is about 20-30 meters, and the crown width is 5.5-7.5 meters. Branchlets are smooth and trunk is grayish brown. Simple leaves alternate, wide oval to obovate, 4- 12.5 cm long, and 2/3 leaves are wide and pointed. The fresh leaves are green, and then gradually turn purple. In summer, the leaves are blue-purple above, white or grayish green below, and gradually turn purple in autumn. Except for the axils of leaves, other parts are hairless. Petiole 1.5-2.5 cm with glandular spots. The bud is light brown. Flowers are short-branched, milky white, racemes, inflorescence 4-6 cm long, flowering from April to June. The fruit is purple, bright and the stone is brown. The fruit period is from July to September.

Prunus purpurea is tall, beautiful and straight. Lush leaves and bright colors. White flowers are dense, the fruit is purple, the leaves are beautiful and generous, and the color changes are rich. Fresh green leaves and purple old leaves change from green to purple, and the leaves fall late, which has good ornamental value. Its unique gorgeous color can be matched with green plants, which can enrich the composition and adjust the color in the garden plant configuration, forming gorgeous patterns and different seasonal effects. The group landscape composed of them has high ornamental value and can greatly enrich the color and greening level of the city. Compared with herbaceous flowers, it is simple to cultivate and convenient to manage in greening, and it can be enjoyed for many years once cultivated. At the same time, because of its rich colors, it is suitable for landscape layout in different seasons. In gardens and scenic spots, it can be planted alone, in clusters, groups or in pieces, and is also suitable for street trees, park decoration or garden shading.

Therefore, Prunus purpurea will have a great development space in urban greening. Especially in the northeast of China, due to the geographical location and climate, there are not many kinds of colored-leaf trees, and the number and area of colored-leaf plants used in specific landscape design are also small. Generally, the colors are monotonous in summer and the green space is yellow in autumn, which can no longer meet the growing needs of modern urbanites for greening, beautification, colorization and fragrance. Under this climatic condition, the leaf buds of Prunus purpurea began to germinate in mid-April. It sprouts in late April, and the first bud is pink. In early May, plum leaves spread, in mid-June, the leaves gradually changed from purple-red to purple-red, and the leaves fell in early June. Its ornamental characteristics.

Although a few years ago, when the seedling market was at a low ebb, many fast-growing tree species suffered a situation in which the quantity and price fell together because of the large number of seedlings, and some seedlings even directly pulled out seedlings for firewood. At the same time, the market of some varieties such as fast-growing poplar is still hot.

However, because fast-growing tree species have the advantages of strong adaptability, fast growth, good fast-growing and high-yield performance, high yield, short cycle and low cost, there is still great room for development in China's greening market. Reasonable collocation of fast-growing tree species with middle-growing and slow-growing tree species can not only show the required greening effect in a short time, but also prolong the service life of the whole green space. In addition, with the continuous increase of wood consumption in China and the gradual strengthening of national protection of natural forests, only by increasing the planting of fast-growing timber forests can we meet the current market demand.