Zhongxinhang (Shenzhen) Industrial Environment Group Co. , Ltd.
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Urban Greening Rules-Grades and Standards of Urban Greening Management

Date:2009-12-20

Class 1 management requirements and standards
1. Standard:
The grass species grow vigorously, the lawn is flat, neat and elegant, the coverage rate is more than 98%, and the weed rate is less than 3%. Evergreen throughout the year, showing vitality. The green area is clean and free of garbage and debris, stones and bricks (except landscape stones), dry branches and leaves, potholes and stagnant water, and bare ground.
2. Requirements:
1) The turfgrass grows well, and grows more than the average annual growth of the grass species and specifications. The leaves are strong, without dry yellow leaves, and the leaves are densely green and vibrant.
2) Pruning of lawn plants requires consideration of the characteristics of stem nodes and the growth and development characteristics of grass species, so that the height of the grass is consistent, neat and beautiful, and the height should be controlled below 5 cm in Taiwan grass.
3) The green space requires frequent watering to ensure the growth of lawn plants, and fertilization is required according to the growth of grass in spring and summer each year. Combining autumn and winter, spray water for proper fertilization, the application of fertilization should be appropriate and uniform, to prevent excessive or uneven caused by fat injury.
4) Weeds are often removed, and the purity of the target grass species of pure turf and mixed turf is 9.7%, and the newly taken green space is required to meet the requirements within six months.
5) Green space requires removal of garbage and debris before 8:30 am and 2:30 pm. Garbage is cleared and transported on the same day. No overnight stay or incineration is allowed. Pay attention to cleanliness. Garbage in the green area must be cleaned up within ten minutes.
6) Fill potholes and plant grass in a timely manner, so that there are no potholes in the lawn, smooth and beautiful, and the replanting should be dense; strengthen maintenance after planting to ensure that it is quickly overgrown, replanting should be timely, but make up one piece by one piece .

Requirements and standards for management of shrubs and flower beds
1. Standard:
Vigorous growth, flowers and leaves, pruning craftsmanship, fine, artistic and creative, beautiful shape, excellent products.
2. Requirements:
1) Good growth, strong branches and leaves, no defoliation in the lower part, thick branches, thick green color, no defect and no faults in the flower bed, shrubs and flower beds without garbage, diseased branches and fallen leaves accumulation.
2) Consider the growth characteristics of each shrub and flower bed plant, make it bloom in time, the flowers are colorful, and coordinate with the surrounding environment to enhance the beautification effect of the garden and form a fine product.
3) Loosen the soil while weeding, and pay attention to protecting the root system, not to damage the root or cause the root system to be exposed.
4) Focus on fertilization 2-3 times a year in spring and autumn, and spray water appropriately according to different seasons and weather conditions. Fertilizers should be buried, open holes or ditches first, fill the soil and pour enough water.
5) Do a good job of the prevention of diseases and insects in a timely manner, adopt comprehensive prevention, chemical prevention, physical artificial prevention and biological prevention and other methods to prevent the spread of diseases and insect pests and affect their growth. If they occur, the most serious damage should be below 5%.

Requirements and standards for management of arbor
1. Standard:
Vigorous growth, beautiful stems and straight crowns, strong branches and leaves, neat upper and lower edge lines of street trees, moderate pruning, beautiful tree shape, no dead trees, and good landscape effect.
2. Requirements:
1) Good growth, more than average annual growth, no dead branches.
2) Consider the growth characteristics of each tree, such as the germination period and flowering period, which should be pruned before, to avoid blindly cutting the leaf buds and flower buds, and the shaping should be coordinated with the surrounding environment to achieve the enhancement of garden beautification. The pruning of the sidewalk trees should keep the crown of the canopy intact and beautiful. The main side is well-balanced and the number is appropriate. The inner bore is not disordered. The ventilation and light transmission are determined. The height of the lower edge is determined according to the conditions of vehicles in different sections. Do not affect the high-voltage lines, street lamps and traffic signs; pruning should be carried out according to the operating procedures, minimize the wounds, the cut should be flat, and no tree nails should be left behind. The sprouts, drooping branches, and sprout branches at the lower edge line should be cut off in time.
3) Focus on fertilizing 2-3 times in spring and summer, properly watering, and avoid exposed fertilizers. The specifications of fertilizing holes are generally 30 * 30 * 40 cm. The location of digging holes is generally the green cast shadow outside the canopy (except street trees) .
4) Do a good job in preventing typhoon, strengthen management before typhoon, pruning reasonably, strengthening tree protection frame, quickly clear the countdown branches during typhoon, and clear the passageway.

Class 2 management requirements and standards
1. Standard:
Grass species grow well, neat and elegant, four seasons evergreen, coverage rate above 95%, weed rate below 5%; clean green area, no garbage and debris, no stone bricks, no dead branches and leaves, no pothole water, Bare ground without parking and parking vehicles.
2. Requirements:
1) The growth is good, reaching the average annual growth, the leaves are green and green, and there is no dead leaves.
2) Pruning requires considering the characteristics of the season and the growth and development characteristics of the lawn, so that the height of the grass is consistent, neat and beautiful, and the height is required to be controlled: Taiwan grass less than 5 cm, big leaf grass less than 10 cm, and the Wedelia no more than 30 cm.
3) Appropriate water spray in autumn and winter, fertilize according to the growth of grass in spring, and apply top dressing in combination with water spray in autumn and winter, pay attention to uniformity to prevent excessive unevenness caused by fat injury.
4) Weeds are often removed to make the purity of pure grass and mixed lawns up to 95%, and the newly taken green space is required to meet the requirements within six months.
5) It is required to remove garbage and debris before 8:30 am and 2:30 pm. Garbage is cleared and transported on the day of the day. No overnight stays, no Brahman burns, attention should be paid to cleaning, timely repair of vegetation damage and lawn plants, basically no bareness, and the plant row spacing is 5 * 5 cm.

Requirements and standards for the second-class management of shrubs and flower beds
1. Standard:
It grows well, the flowers are luxuriant, the appearance is beautiful, and it should have a certain sense of art and three-dimensional.
2. Requirements:
1) The growth is good, the average annual growth is reached, the branches and leaves are normal, there is no defect in the flower bed with no dead branches, there is no fault in the hedge, and there is no garbage, disease-free branches and leaves in the bushes and flower bed clusters.
2) Pruning should take into account its growth and development characteristics, so that it can bloom in time, and the shaping of shrubs and flower bushes should be as coordinated with the surrounding environment as possible. Weeds are often removed and soil is loosened at the same time, taking care not to repair the roots or cause the roots to become bare.
3) Focus on fertilizing 1-2 times in spring and autumn, and spray water in a timely manner. Pay attention to burying fertilizer and pouring enough water.
4) Dead trees are replanted from time to time in spring and autumn to ensure a survival rate of 90%.
5) The prevention and inspection of diseases and insect pests should be done in a timely manner, and the most serious damage level should be less than 8%.

Requirements and standards for arbor II management
1. Standard:
It grows well, the branches and leaves are normal, the upper and lower edge lines of the sidewalk trees are neat, the pruning is moderate, the tree shape is beautiful, no dead trees are missing, and the landscape effect is good.
2. Requirements:
1) The growth is good, the annual average growth is achieved, the branches and leaves are normal, and there are no dead branches. The pruning should consider the growth characteristics of each tree such as the germination period and flowering period. Determine the pruning time, avoid blindly cutting off the flower buds, and make them bloom in time. The plastic surgery should be coordinated with the surrounding environment as much as possible. The sidewalk tree should keep the canopy intact, the leaves should not be dense, and the overlap should not be too negligent. The height of Xiayuan County should be determined according to the conditions of vehicles on different roads, with the tree height of 10-17 meters.
2) Focus on fertilizing 1-2 times in spring and summer. The size of buried and fertilizing holes is 30 * 30 * 40 cm. Dead trees are replanted in spring and summer. The survival rate is 95% for banyans and 85% for other tree species.
3) Do a good job in preventing typhoon, strengthen management before the typhoon, and restore the green landscape as soon as possible after reasonable repair of the typhoon.
4) Do a good job in the inspection and prevention of plant diseases and insect pests. The occurrence of plant diseases and insect pests should be controlled below 8%.

Requirements and standards for three types of management

Requirements and Standards for Green Field Management of Wedelia
1. Standard:
    Good growth, neat and elegant, coverage rate of 95%, weed rate of less than 3%; four seasons of evergreen, flowering flowers in full bloom, green areas kept clean.
2. Requirements:
1) The growth is good, reaching the average annual length, the branches and leaves are normal, and the branches and leaves are dried afterwards. The season and biological characteristics should be considered for pruning. The edges of the green space are neat, blooming in time, and the height is below 30 cm.
2) Water should be properly sprayed in autumn and winter when the rain is lacking; fertilization should be carried out according to the growing trend in spring, and water should be combined in autumn and winter to properly apply fertilizer.

Requirements and standards for the three types of management of shrubs and flowers
1. Standard:
    It grows normally, looks beautiful, and should have a certain sense of art.
2. Requirements:
1) Good growth, close to average annual growth, normal branches and leaves, no dead branches.
2) Focus on fertilization in spring or autumn, and water in time for different seasons.
In the spring and summer, no time is lost for replanting dead trees, the survival rate is more than 90%, and the pre-treatment of diseases and insect pests is well done. The most serious damage procedure is less than 10%.

Requirements and standards for three types of arbor management
1. Requirements:
1) The growth is good, close to the average annual growth, the branches and leaves are normal, and there are no dead branches.
2) Focus on fertilizing once in spring or autumn, and replant dead trees in spring and summer, ensuring the survival rate of banyan trees to reach 90%, and other tree species to reach 80%.
3) Timely pre-treatment of diseases and insect pests, the most serious victim level is below 10%.