Technical Specifications for Greening and Maintenance in Residential Areas (Highly Recommended for Collection)

In order to improve the level of greening maintenance and management in residential areas, promote the scientific, standardized and refined greening maintenance and management in residential areas, so as to better play the ecological and landscape functions of greening in residential areas, improve the living environment and improve the quality of life of residents, Suzhou Municipal Bureau of Landscape and Greening Management organized the compilation of the "Suzhou Residential Area Greening Maintenance Technical Regulations", which Dr. Tree shared with friends in need today.

The regulations are divided into 8 parts : general principles, terminology, plant pruning, plant protection, rejuvenation and renewal, fertilizer and water management, pest control, maintenance safety, and file management. Today we will mainly take a look at the content of plant pruning.

1. Common tree pruning in residential areas

(one)

When pruning is needed

1. Branches and trunks that affect the normal growth of trees.

2. Branches that threaten the safety of residents, hinder ventilation and lighting, and affect the normal operation of other facilities.

3. Trees need to be renewed and rejuvenated.

(two)

Pruning principles

1. Avoid destructive excessive pruning such as cutting off the tree crown.

2. Avoid long-term and repeated strong pruning of the same tree.

3. Avoid pruning the top branches of trees with obvious main trunks.

(three)

Pruning period

It is generally divided into two periods: summer pruning and winter pruning .

1. Key points of summer pruning: Keep pruning intensity to a minimum; prune branches that affect residents' lives; prevent the tree crown and shape from tilting; prevent branches and leaves from being too dense and causing damage; prevent typhoons from causing lodging; prevent the breeding of diseases and insect pests.

2. Key points of winter pruning: Maintain the skeleton branches of the crown; adjust the ratio of the crown and the trunk; do not damage the beauty of the crown.

(Four)

Common pruning methods

1. Shortening : When shortcutting, attention should be paid to the positional relationship between the incision and the lateral buds to prevent branch damage. Generally, the cut should be selected 0.5~1cm above the bud.

2. Pruning : Generally, pruning is done on perennial branches. Pruning has a significant effect on promoting growth and renewal and rejuvenation. Therefore, pruning is mostly used for renewal and rejuvenation of backbone branches and fruiting branches, which can maintain vigorous growth and inhibit crown aging.

3. Thinning : Applicable to branches with a diameter greater than 5 cm. Branches should be cut from the branching point, and the incision must be smooth to prevent damage. According to the pruning target, it can be divided into strong thinning (cutting off part of the main branches that constitute the crown skeleton) and weak thinning (cutting off small branches on the periphery of the crown).

Camphor tree pruning demonstration

(Also applicable to similar tree-shaped trees such as camphor, elm, privet, sophora japonica, and Chinese tallow tree)

Ginkgo pruning demonstration

(Also applicable to similar tree-shaped trees such as Magnolia, Platanus, Hybrid Ligusticum, Liquidambar formosana, etc.)

2. Pruning of common flowers and shrubs in the community

There are many types of flowering shrubs in residential areas. The basic rules and requirements for pruning are as follows. Please contact the editor for more details.

When pruning a single shrub, the crown should be high in the middle and low around the edges, forming a natural semicircular or spherical shape.

When multiple trees of the same species are planted in clusters, they should be pruned into a cluster shape that is high in the middle and low around, or high in the back and low in the front, to facilitate display of the viewing surface.

When pruning shrubs of multiple varieties, the main ornamental plants should be highlighted and appropriate growth space should be left.

An evergreen coniferous shrub, it is generally pruned only lightly, with the tips of the branches removed to maintain a compact shape.

For flowering and fruiting shrubs, bud removal, flower thinning and fruit thinning should be carried out in a timely manner to promote plant growth.

For species with extremely strong germination ability or that are easily affected by frost in winter, you can retain the tillering buds at the base near the ground before the frost falls and cut off all the above-ground parts.

Weeping Begonia Pruning Demonstration

Pruning tips:

1. Generally, pruning is done after flowering in spring.
2. Do not over-prune after the leaves fall in autumn, which will affect the viewing of flowers next year. You can appropriately prune the dense inward branches, shorten the branches that are too long beyond the crown, and prune the diseased branches, dead branches and broken branches.
3. You can cut off the remaining flowers after flowering.

Crape Myrtle Pruning Demonstration

Pruning tips :

1. Generally, pruning is done in autumn after the leaves fall.
2. Keep two to three strong one-year-old branches of each main branch according to the growth direction, and cut them short by about 20 cm, and cut off other redundant branches.
3. When the branches are too dense and need to be thinned, choose to keep the thicker branches and remove the thinner branches.

Red Leaf Plum Pruning Demonstration

Pruning tips:

1. Generally, pruning should be done in May or June after flowering. In principle, pruning should be avoided after September.
2. Clean up the weak branches in the middle of the crown to ensure ventilation and light transmission. Cut off the winding branches and dead branches to maintain the tree shape.
3. If pruning in winter, only the branches without flower buds need to be cut off.

3. Bamboo pruning

Pruning period

Bamboo generally maintains its natural shape and is rarely pruned, but when it grows too vigorously, it should be thinned or transplanted properly in late autumn or winter, retaining new bamboos that are 4 to 5 years old or younger and removing old bamboos that are more than 6 years old.

Pruning methods

1. The bamboo forest should be deeply plowed and the bamboo shoots should be cut every 3 to 5 years. The old bamboo shoots over 4 years old and the bamboo stumps after annual felling should be dug out.

2. Bamboo pruning should be carried out after new bamboo branches have sprouted and before the leaves unfold, and all the parts close to the base of the bamboo within 1m above the ground should be removed.

3. When the density of bamboo plants is too high or their growth exceeds the defined range, the bamboo whips, bamboo seedlings, bamboo vines, etc. that have crossed the boundary can be cleared to maintain a moderate density.

4. When pruning bamboo, use a hand saw or electric saw to cut horizontally along the base of the bamboo joint to prevent water from accumulating in the remaining bamboo poles and breeding harmful organisms.

4. Lawn Mowing

Pruning period

Lawn mowing is generally done during the vigorous growth period of lawn grass, and avoids being done during the dormant period. Warm-season lawns generally grow from April to October, and dormant from November to March of the following year. Cool-season lawns generally grow from April to June and October to November, and dormant during hot and cold periods.

Pruning methods

1. Generally, machines are used for mowing. Manual mowing can be used for roadsides and small areas. Before mowing, the surface should be completely cleared of gravel, branches and other debris.

2. When cutting grass, the edge should be neat or smooth, and the distance from other plant planting areas should not exceed 30cm.

3. The stubble height of cold-season lawns should not exceed 6-7cm, and the stubble height of warm-season lawns should not exceed 4-5cm. When the actual height of the lawn exceeds 1/3 of the rated height, it should be mowed.

4. The inflorescences formed by lawn grass should be cut off in time, and grass clippings should be removed in time. The lawn should be watered and fertilized in time after mowing.

Source: Forestry Station (Greening Guidance Station)

Landscaping Greening