What is the basis for choosing subtrees?

Selection basis of sub-tree species: standard seedlings: refers to seedlings with more than DBH 6cm and less than 15cm, which have been pruned and cultivated for more than 2 growth cycles and have more than 3 branches; Or uncut seedlings with primary crown width 1.5m or more, main branches with more than 3 layers and even interlayer distance. High-quality seedlings: refers to seedlings with DBH above 10cm and below 15cm, which have been pruned and cultivated for more than 4 growth cycles and have more than 5 branches; Or untrimmed stems, the first-class crown width is more than 2m, and the main branches are evenly distributed in a spiral shape from bottom to top. Superior seedlings: refers to the seedlings with high ornamental value that are cultivated by means of shaping, pruning, grafting and other technical means or naturally grow into special shapes; Or seedlings whose DBH is above 16cm and meet the requirements of high-quality seedlings. Generally speaking, the shape of trees should be determined by five indicators: tree height, crown width, DBH, branch point and branch fullness. Tree height, crown width and DBH ratio are moderate, so it can be called a qualified tree. Standard seedling: refers to pine seedlings with compact and full crown shape, the ratio of crown diameter to seedling height greater than 1/2, and even spacing between layers; Or the ratio of crown diameter to seedling height is greater than 1/4. High-quality seedlings: pine seedlings with dense crown shape, the ratio of crown diameter to seedling height greater than 3/4, and even layer spacing, which accounts for about 5% of the natural height of the whole tree, or cypress seedlings with the ratio of crown diameter to seedling height greater than 1/3. Superior seedlings: refers to seedlings with special shape and high ornamental value formed by cultivation techniques such as shaping, pruning and grafting or natural growth; Or high-quality seedlings more than 5 meters high.

2022- 12- 15 consultation records and answers.

Basis of sub-tree species selection

Selection basis of sub-tree species: standard seedlings: refers to seedlings with more than DBH 6cm and less than 15cm, which have been pruned and cultivated for more than 2 growth cycles and have more than 3 branches; Or uncut seedlings with primary crown width 1.5m or more, main branches with more than 3 layers and even interlayer distance. High-quality seedlings: refers to seedlings with DBH above 10cm and below 15cm, which have been pruned and cultivated for more than 4 growth cycles and have more than 5 branches; Or untrimmed stems, the first-class crown width is more than 2m, and the main branches are evenly distributed spirally from bottom to top. Superior seedlings: refers to the seedlings with high ornamental value that are cultivated by means of shaping, pruning, grafting and other technical means or naturally grow into special shapes; Or seedlings whose DBH is above 16cm and meet the requirements of high-quality seedlings. Generally speaking, the shape of trees should be determined by five indicators: tree height, crown width, DBH, branch point and branch fullness. Tree height, crown width and DBH ratio are moderate, so it can be called a qualified tree. Standard seedling: refers to pine seedlings with compact and full crown shape, the ratio of crown diameter to seedling height greater than 1/2, and even spacing between layers; Or the ratio of crown diameter to seedling height is greater than 1/4. High-quality seedlings: pine seedlings with dense crown shape, the ratio of crown diameter to seedling height greater than 3/4, and even layer spacing, which accounts for about 5% of the natural height of the whole tree, or cypress seedlings with the ratio of crown diameter to seedling height greater than 1/3. Superior seedlings: refers to seedlings with special shape and high ornamental value formed by cultivation techniques such as shaping, pruning and grafting or natural growth; Or high-quality seedlings more than 5 meters high.

This is a subtree.

Yes, I also answered you with a subtree.

It is to choose from the above aspects.

Yes, that's the standard of everything.

I still have a question, that is, what is the basis of micro-courtyard design?

1, Style Early Determination Qingpu courtyard design must first establish a style he likes. You can also roughly determine the type of garden according to the style of the building. General courtyard styles can be simply divided into regular and natural types. Common styles are: Chinese, Japanese, European, American, rural, Mediterranean and modern courtyard. No matter what style you choose, before designing, determine the courtyard style and consider the harmony between gardens and buildings. 2. Clever planning and layout. Don't have too many plant varieties in courtyard design, Qingpu. Take one or two plants as the main landscape plants, and then choose one or two plants as a match. The choice of plants should match the overall style of the courtyard, and the level of plants should be clear, concise and beautiful. Water is an indispensable element in the courtyard, which depends on other elements in the courtyard, thus building a harmonious and perfect courtyard landscape. 3. The concept of overall unity-overall unity for the courtyard of the villa area includes three aspects: Qingpu courtyard design should be in harmony with the surrounding environment, the parts that can be used should be borrowed as much as possible, and the uncoordinated parts should be visually blocked as much as possible; The courtyard should be integrated with its own building and extend with the interior decoration style; All the components of the park are organically linked, and the transition is natural. 4. Vision should balance the position, shape, proportion and texture of the elements in the courtyard, so as to achieve "balance", which is similar to the composition requirements of painting and photography, but the garden is three-dimensional and can be viewed from multiple perspectives. On the courtyard design, we should make full use of people's visual illusion. For example, the nearby trees are slightly bigger than the distant trees, which will make the yard look bigger than it really is. 5. courtyard design in Qingpu, with a good combination of motion and static, should have multiple points of view to guide the line of sight to shuttle back and forth and form a sense of movement. Except for miniature gardens in Japan, almost all gardens should make more fuss about the combination of static and dynamic. The movement depends on the shape and vertical elements of the courtyard (such as hedges, walls and vegetation).

6, color needs to be rich all year round, warm in spring and cool in autumn. In different seasons, the color of plants should change accordingly. The cold and warm feeling of color will affect the size, distance and weight of space. In Qingpu courtyard design, warm and bright elements are designed nearby and cold and dark elements are arranged in the distance, which will increase the depth of field and make the small courtyard more meaningful. Summer is a season with a wide variety of flowering plants. We might as well make a variety of colors and decorate it with wild perennial flowers. Even if you use a variety of colors with high colors, you won't feel messy. For example, colorful snapdragon with different colors can be made into several lively color blocks. Of course, it is best to decorate some silver-leaf plants or white snowballs to neutralize them, so that the effect will be better. 7. Adequate illumination Drainage, illumination, ventilation and soil quality will all affect the growth and development of plants, especially whether the illumination is sufficient or not is an important condition to decide which flowers can be planted. Generally speaking, it is ideal to build the garden in a place with good lighting conditions and facing south, so you must first understand the conditions of your house. How many hours of sunshine are there in a day? Is it half cloudy or cloudy? On this basis, plant species suitable for these environments are selected. You can also build a courtyard in the shade, and you can consider building a shady garden for viewing. 8. Plants are changeable, and it is believed that the three-dimensional shape of plants has changed. They can be round, cylindrical, free-flowing, wavy or fountain-shaped. Hard gardening materials and garden decoration also have their own shapes. Color, structure, appearance and brightness can all be achieved by choosing different plants.

If it's courtyard design Jr., is there anything else to pay attention to?

No, just these eight items, remember,

Ok, thank you.

By the way, there is another question: what are the characteristics of water features?

1. People are hydrophilic. People generally like water and keep a close distance from it. When the distance is very close, people can touch the water with all parts of their bodies and feel the kindness of the water. The smell, fog and water temperature of water directly stimulate people and make them feel excited. When the distance is far away, people can feel the existence of water through vision and be attracted to the water's edge to achieve close contact; Sometimes, the water features are hidden, but they can attract people through the sound of water. Because of people's hydrophilicity, residential areas should shorten the distance between people and the water surface, and can also integrate people into the water landscape in a safer situation. People like to stand on the water and be in direct contact with it. Children like to play in shallow water and play in the water. Under special circumstances, people can dive into the water and enjoy the charm of the underwater environment. 2. The environmental characteristic of water is that it is liquid at room temperature. There is no fixed shape in itself, and its ornamental effect depends on the shape, water quality and surrounding environment of the water-containing object. Various shapes and postures of water are related to containers. When the container is designed, the water posture to be achieved comes out. Natural factors such as wind, temperature and light around the water body will also affect the ornamental effect of the water body. Like a strong wind. When the waves are rough, how can we appreciate the reflection on the water? The temperature dropped, the water turned into ice, and the sparkling lake turned into a smooth and dazzling skating rink. The pleasure of viewing is different from the direction of use. There are two main types of containers on which garden water bodies depend: (1) water bodies in natural state. Such as lakes, ponds and streams in nature, whose slopes and bottoms are naturally formed. (2) artificial water body. Such as fountains and swimming pools. , whose sides and bottom are artificial structures.

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Basis of sub-tree species selection

Sangbaobu 9r

A white farmer.

There should be a main shaft with 3 to 5 main branches, which are evenly distributed. The main quality requirements of tree seedlings (evergreen conifers) are based on trunk diameter, tree height, crown width, main branch length, branch point height and transplanting times.

2022- 12- 15

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Selection basis of sub-tree species

Agricultural talent Xiaoxing

A white farmer.

Selection basis of sub-tree species: standard seedlings: refers to seedlings with more than DBH 6cm and less than 15cm, which have been pruned and cultivated for more than 2 growth cycles and have more than 3 branches; Or uncut seedlings with primary crown width 1.5m or more, main branches with more than 3 layers and even interlayer distance. High-quality seedlings: refers to seedlings with DBH above 10cm and below 15cm, which have been pruned and cultivated for more than 4 growth cycles and have more than 5 branches; Or untrimmed stems, the first-class crown width is more than 2m, and the main branches are evenly distributed in a spiral shape from bottom to top. Superior seedlings: refers to the seedlings with high ornamental value that are cultivated by means of shaping, pruning, grafting and other technical means or naturally grow into special shapes; Or seedlings whose DBH is above 16cm and meet the requirements of high-quality seedlings. Generally speaking, the shape of trees should be determined by five indicators: tree height, crown width, DBH, branch point and branch fullness.

2022- 12- 16

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What kind of electric toothbrush is good and what brand of electric toothbrush is good?

What electric toothbrush is good, what electric toothbrush is good, the cleaning effect is too good, and all used ones are good! Which brand of electric toothbrush has good quality, there is still a big gap between the quality and cleaning effect of electric toothbrush. .....

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Selection basis of sub-tree species

Cheng Xin, agricultural tutor

Active star

Selection basis of sub-tree species: standard seedlings: refers to seedlings with more than DBH 6cm and less than 15cm, which have been pruned and cultivated for more than 2 growth cycles and have more than 3 branches; Or uncut seedlings with primary crown width 1.5m or more, main branches with more than 3 layers and even interlayer distance. High-quality seedlings: refers to seedlings with DBH above 10cm and below 15cm, which have been pruned and cultivated for more than 4 growth cycles and have more than 5 branches; Or untrimmed stems, the first-class crown width is more than 2m, and the main branches are evenly distributed in a spiral shape from bottom to top. Superior seedlings: refers to the seedlings with high ornamental value that are cultivated by means of shaping, pruning, grafting and other technical means or naturally grow into special shapes; Or seedlings whose DBH is above 16cm and meet the requirements of high-quality seedlings. Generally speaking, the shape of trees should be determined by five indicators: tree height, crown width, DBH, branch point and branch fullness. The ratio of tree height, crown width and DBH is moderate.

2022- 12- 16

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Why should we classify seedlings and trees in greening?

Baidu netizen 0d07 1d2

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Hello, seedlings are the basic materials for landscaping, with various forms and great differences in quality. At present, there is no uniform standard for seedling quality, which leads to a series of problems such as low credibility of seedling management and many quality disputes.

2022-05-29

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