What are the varieties of landscape trees (Complete Picture Gallery of Garden Landscape Tree Varieties)

Landscape trees are also called solitary trees, solitary ornamental trees, specimen trees or solitary trees. The sapling species suitable for landscape trees generally need to be beautiful in shape, tall and majestic, with personality and characteristics, and long life. Sapling species with beautiful flowers, fruits, bark or leaf color are usually selected, and they can be deciduous or deciduous. Can be evergreen. Such seedlings can become independent landscapes for viewing.

What are the types of landscape trees?

Common landscape trees include: ginkgo, maple, cotinus, five-cornered maple, metasequoia, coconut, betel nut, camphor, osmanthus, magnolia, tulip tree, mango tree, nanmu, green peach, banyan tree, cherry blossom , Davidia involucrata, catalpa, horse chestnut, etc. In fact, plants in the palm family, Acer family, Lauraceae, Moraceae, Magnoliaceae and other plants are relatively common landscape trees.

Southern landscape trees are mainly evergreen, among which palm plants have been used more frequently in recent years, such as palm, palmetto, palm bamboo, rhododendron, Washington palm, Luzon sugar palm, and bay leaf palm. , Qiong palm, Ruo palm, red palm, blue palm, sugar palm, king palm, sugar palm, beautiful needle sunflower, Canary date palm, fishtail sunflower, king coconut, oil palm, Christmas palm, green palm, triangular coconut , beautiful straight-leafed palm, fake betel nut, betel nut, Alexander coconut, wine bottle coconut, stick coconut, elephant trunk palm, etc.

Others include: Traveler's banana, Pandanus, Tuanhua, Catalpa tree, Jacaranda, American ash, menorah tree, Davidia involucrata, Camptotheca acuminata, Terminalia elata, rubber tree, banyan tree, kapok , lychee, longan, bauhinia, eryngium, acacia, magnolia, linden tree, bread tree, etc.

What are the uses of landscape trees?

Landscape trees are seedlings specially used in urban construction, park greening, municipal greening and other projects in various places to beautify the scenery and green the environment. Generally planted in nurseries in various places, they are divided into various levels according to different tree types. It consists of various ornamental individual tree species in the landscape forest, as well as trees that grow in different spatial environments and can be listed as independent scenic spots. The biggest difference between it and the landscape forest is that it enters the landscape series with an individual ornamental image and appearance. Its attraction effect mainly relies on the characteristics of the tree species, such as being beautiful, ancient, rare, planted by celebrities, and strange in shape. Landscape trees can also be planted beside roads, pools, corridors, in front of and behind pavilions, or matched with rocks, buildings, etc., or scattered in groups of three to five in local small scenic spots to form a natural and interesting arrangement. Carry out regular distribution in areas with regular axis layout.

Methods for pest control of large landscape trees

(1) Dusting method. Spray the powdery poison on the surface of the tree or pest body through a duster to poison and kill it. This method is highly efficient, does not require water, and is less harmful to the trees themselves. The disadvantage is that the poison has poor persistence on the trees, requires a large amount, and is not economically cost-effective.

(2) Fumigation method. Toxic gases or vapors are used to enter the body of pests through their respiratory organs to kill pests.

(3) Spray method. Utilize solutions, emulsions or suspended liquid poisons to form fine mist points and spray them on trees or pests with the help of spray equipment.

(4) Poisonous weed bait. Make a mixture of solution or powdered poison and bait, and then sprinkle it where pests occur or live.

(5) Poison ring method. The poison is applied directly to the bark of the tree or to a paper tape or straw ring tightly wrapped around the trunk to prevent or poison leaf-eating insects from climbing up the tree and causing damage.

(6) To prevent insect pests in winter, you can use methods such as digging for pupae and scraping bark to eliminate various sources of overwintering insects. Painting tree trunks white will eliminate pests and diseases that overwinter in the cracks in the bark.

Transplantation method of large landscape trees

(1) Tool preparation

A crane of more than 30T and an extended truck of more than 20T, straw rope and Some digging tools etc.

(2) Irrigation

Irrigation should be carried out about 5 days before transplantation. Water enough to ensure that the roots and branches of the seedlings have enough water to make up for the damage caused during the transplantation process. The root system does not absorb enough water, and after filling with enough water, the soil is easy to dig and form soil clumps.

(3) Dry wrapping

Two days before excavation, soak the straw rope with water and wrap it from the base of the trunk in a circle and upwards. The main function is to keep warm and moisturize. . The first is to avoid direct sunlight and transportation, and prevent dry wind after planting to reduce the evaporation of water in the trunk; the second is to adjust the humidity of the trunk to reduce damage to the trunk due to the temperature difference in the transplantation site; the third is to water the rope-wrapped parts to store a certain amount of water. moisture to keep the trunk as moist as possible; fourth, it can protect large trees from mechanical damage during excavation, transportation and planting. Use used car tires to wrap the tree trunk at the crane wire rope lifting location to prevent the tree trunk from being damaged by the wire rope during lifting.

(4) Pruning

Pruning is the main measure to maintain the balance of the above-ground parts during the transplantation process of large trees. Generally, deciduous trees and coniferous trees cannot be pruned. For large evergreen broad-leaved trees, First, cut off diseased branches and overly long branches that cross too closely.

(5) Orientation

Orientation is to mark the north-south direction with paint on the branches so that it can still maintain its original direction during transplantation to meet its light requirements.

(6) Excavation

The key when digging a big tree is to protect the soil ball from being scattered. Generally, the diameter of the soil ball is 810 times the diameter of the trunk, and the height of the soil ball is The diameter is about 70%. If the soil ball is too large, it will easily fall apart. If the soil ball is too small, it will not survive easily. When excavation, the excavation area should be appropriately increased and a certain slope should be formed from the inside to the outside. The excavation should be carried out with a certain diameter and must be vertical, with the upper and lower width consistent and barrel-shaped.

(7) Trimming and packaging of soil balls

After digging the soil balls, use a sharp hoe or shovel to smooth them. Make a small flat bottom under the soil balls and trim them. After treatment, the soil ball must be bandaged. To wrap the soil ball, first use a soaked straw rope to wrap the soil ball across the waist, with the width accounting for 1/3 of the soil ball. Then tie the straw rope to the tree trunk and cross it up and down to form a mesh. Use force when winding, bind firmly, minimize joints, and tie the rope end tightly to the root of the tree. Then use thick hemp rope to cross-wrap the soil ball in a circle.

(8) Hoisting

When using a crane to lift a large tree, it can be directly lifted and loaded onto a car. Use 40cm thick straw as the bottom of the car to prevent direct contact between the soil ball and the steel plate of the car and damage to the soil ball. When loading the vehicle, place the soil ball forward and the tree flatly backward on the vehicle. To prevent the soil ball from rolling, it can be fixed with stones. At the contact point between the tree trunk and the vehicle barrier, use used car tires and hemp rope to fix it. After loading, use hemp rope to wrap the tree trunk at multiple points and fix it on the carriage. After the car is loaded, it should be transported immediately to a designated nursery for planting.

Feng shui analysis of garden planting of landscape trees

(1) Selection of tree types

There are choices for garden tree planting. Feng Shui believes that plants are divided into two categories: bad and good. There are two criteria for classifying murderers: one is based on whether there is poisonous gas or venom. This has a certain scientific basis. For example, some scholars believe that tuberose will emit a large number of particles that strongly stimulate the sense of smell at night, which will have adverse effects on patients with heart disease and hypertension. The flowers of oleander are poisonous, and the floral fragrance can easily make people drowsy and reduce human body functions. Tulip flowers contain soil alkali. , the hair will fall off easily due to excessive contact, etc. It is an evil tree and is not suitable for garden planting. The second type is to judge the bad luck based on the shape of the tree, such as "the big tree is weird and has a bad reputation due to gas pain", "the tree is bent and hunched, and all the wealth will be lost", "the tree is like a barren cow, and there are many diseases when living in a snail", etc. Any tree that does not look upright, dignified, or develops normally will be unlucky. This may be due to psychological effects or traditional humanistic aesthetic concepts. As for the auspicious tree, it is determined based on plant characteristics, meaning and even homophony, and in real life people agree with this view. For example, Feng Shui scholars believe that palm, orange tree, bamboo, toon, locust tree, osmanthus, Ganoderma lucidum, plum, banyan, Thirteen kinds of plants, including jujube, pomegranate, grape, and crabapple, are good-enhancing plants. Eight kinds of plants, including peach, willow, mugwort, ginkgo, cypress, dogwood, soapberry, and gourd, have the effect of transforming evil spirits and expelling evil spirits. Since people agree with this view, We should refer to it in garden design.

(2) Planting direction

The ancient Feng Shui classics have some assertions about this: "Plant peaches and poplars in the east, plums and jujubes in the south, elms in the west, and lucky plums in the north." , "Weeping willows in front of the door are not auspicious", "There are locust trees in the middle door, rich and poor for three generations", "There are elms behind the house, and hundreds of ghosts are not close", "Double jujubes are planted in front of the door, and there are green bamboos and trees on the sides to bring wealth. ", "There are mulberry trees in the four corners of the house, and you can't stop them when disaster strikes", etc. From the above conclusions, combined with modern scientific knowledge, we believe that some of the conclusions contain natural science knowledge, and some are a psychological need to seek good luck and avoid disaster. For example, peach and poplar trees are planted in the east because the east welcomes the rising sun first, and willows sprout earlier. Among the plants, peach blossoms are also one of the earliest plants to bloom in spring, so it is reasonable to plant them in the east. Elm trees are moisture-loving plants and are not afraid of the western sun, so it is better to plant them in the west. As for the saying that the locust tree attracts wealth and the elm tree drives away ghosts, it is likely that there are many superstitious elements. Willow trees are not suitable to be planted in front of the main door. This may refer to the willow tree's "watery poplar", so it is difficult to accept it psychologically.

(3) Number of trees planted

Feng Shui advocates reasonable and dense planting. It believes that when the surrounding area is large and narrow, you should not plant too many trees, otherwise they will provide shade; only if there are open spaces on the left and right behind, you should plant densely to block the space. We agree with this view, but some of the following statements are too superstitious and we can discard them: "A single tree is the door, a widowed mother and a grandson", "The door is in the forest, and sudden diseases are more severe", "In front of the door "Double trees, animals hurt people and heal", "Tree on the left and right without one, less good luck and more bad luck", "Three or five trees on the left, husband and wife are in conflict with each other", "Two trees sandwiching a house will surely cause death", "A single tree is flat and beautiful, two surnames Disharmony", "The tree on the left has many obstacles, and the financial year will be prosperous".

(4) Tree size

Different Feng Shui schools have different requirements regarding how large a tree should be planted in the courtyard: the Formal School of Feng Shui believes that to block the evil spirits around the house, it is better to Plant large trees in rows. In order to supplement the needs of the situation, when the house is built on a plain or in a relatively flat area around it, trees, flowers and plants can be used to create a four-image pattern of "left green dragon, left white tiger, front red bird, and back Xuanwu", that is, a big tree is planted behind the house. Planting medium trees on the left and right sides, and planting low shrubs or grasses in front is understandable from an aesthetic point of view, and it meets people's psychological needs for finding a "feng shui treasure land". We can apply it in the design. The Li Qi school in Feng Shui believes that it is better to plant big trees in places where the view is high, and low plants in places where the view is low. For example, the Bazhai Younian theory believes that the house should be planted with heavenly medicine, longevity, and vitality. In the direction, you can plant short trees or grass; the law of Xuankong stipulates that only the direction of Zhengshen can plant big trees, but the direction of Zero God is not suitable. This method may not have any scientific basis, and it may not have any aesthetic merit. We Unless the builder has special requirements, it should not be used as a reference.

(5) Tree type selection

Feng Shui theory generally advocates a square garden with symmetry and balance. Therefore, the overall requirements for plant cultivation can be summarized as: healthy and disease-free, Dignified and magical, we can see this from the following Feng Shui conclusion. "Strange tree with swollen head but not swollen waist, treacherous and lewd little ghost", "Bamboo trees hanging upside down by the water, children falling into the water are unspeakable", "Dead trees serve as doors, people die in fires", "Twigs are entangled with vines, cantilevered beams capsize boats", " The lower part of the tree is damaged, and the foot disease is lingering at the edge." "The fruit branches are on the left side, and miscellaneous diseases are phlegm and fire." Disgraced" and so on. What is certain is that dead, withered and diseased trees should not be planted. As for trees that are not dignified, they should be divided into two parts. Some trees are beautiful because of their bends, and they are good because of their bends. However, we cannot generalize. Rejection; of course, we will not plant anything that is crooked, ugly, or twisted.

(6) Plant color selection

There are very few discussions directly discussing the color of plants in classical Feng Shui books. There are only a few sentences, such as "The red flowers on the right tree are charming and charming." , "The white flowers on the right tree, the descendants are scattered", the red flowers on the right tree are probably related to "peach blossom luck", which is consistent with the theory that the pond should not be located on the right side, otherwise obscenity will occur. "White flowers on the right tree" is related to the custom of using white flowers to express mourning for the deceased, so it is judged that "the descendants will be scattered".

We think this judgment is nonsense, otherwise it would be a big taboo to plant the pure white magnolia in front of the house? Although the ancient Feng Shui theory did not discuss too much about what color plants to plant, Feng Shui theory believes that everything in the world is composed of five material elements: metal, wood, water, fire, and earth, and different Colors represent different elements.

Gold - white, apricot, gold

Wood - cyan, green

Water - black, blue

Fire - red, purple

Earth - yellow, brown

As for what direction and what color should be planted in what place, Feng Shui has created a series of complex plants based on the principle of the five elements' mutual generation and mutual restraint. Due to space limitations, we will not discuss the theory. Some modern Feng Shui scholars have put forward some new views based on people's psychological customs about colors. They believe that red represents prosperity and enthusiasm; green represents peace; yellow represents wealth; black represents solemnity; and white represents cleanliness and solemnity. We can refer to the application in garden design.