Section 1 Irrigation and Drainage

Article 2. 1. 1 All kinds of green spaces should have their own complete irrigation and drainage systems.

Article 2. 1.2 Newly planted trees should be properly irrigated according to different tree species and different site conditions to maintain effective moisture in the soil.

Article 2.65438 +0.3. Trees that have been planted and survived should be irrigated in time under the environment of long drought or poor site conditions and dry soil. Trees with high requirements for moisture and temperature should be irrigated in the early morning or evening, and some should be sprayed on the leaves appropriately.

Article 2. 1.4 The soil should be loose before irrigation. Summer should be early rather than late, and winter should be irrigated at noon. Irrigation should be thoroughly watered at one time, especially in spring and summer.

Article 2. 1.5 The accumulated water around trees should be removed after heavy rain, especially the accumulated water around newly planted trees should be removed as soon as possible.

Section 2 intertillage weeding

Article 2.2. 1 The big weeds under trees and shrubs must be eradicated, especially all kinds of lianas that are harmful to trees, such as silkworms.

Article 2.2.2 The soil near the roots of trees should be loose and easy to harden, and the soil should be loosened once a month in the transpiration season.

Article 2.2.3 Intertillage weeding should be carried out in sunny days or when the weather in Chu Qing is not too humid.

Article 2.2.4 The depth of intertillage shall not affect the growth of root system.

Section 3 Fertilization

Article 2.3. 1 Basic fertilizer should be applied during the dormant period of trees and before planting. Topdressing during the growth period of trees can be carried out according to the growth potential of plants. Note: flowering shrubs should be carried out before and after flowering. Fruit trees should be carried out according to the technical requirements of different kinds of fruit trees.

Article 2.3.2 Fertilization amount shall be determined according to tree species, tree age, growth period, fertilizer source and soil physical and chemical properties. Generally, trees with DBH below 15cm should be composted every 3cm, and trees with DBH above 15cm should be composted every 3cm.

The amount of fertilization should be increased appropriately to enlarge the crown of trees and to watch flowers and fruits when young.

Article 2.3.3 Trees and shrubs should first dig a fertilizing ring ditch, the outer diameter of which should be adapted to the tree crown width, and the depth, width and height should be 25-30cm.

Article 2.3.4 Fertilization types shall be determined according to different requirements such as tree species, growth period and ornamental value. In order to expand the crown width in the early stage, nitrogen fertilizer should be applied, and phosphorus and potassium fertilizer should be applied to ornamental fruit trees. Pay attention to the application of trace elements and the technology of fertilization outside the root, and gradually popularize the application of compound fertilizer.

Article 2.3.5 All kinds of green space should be added with organic fertilizer. Organic fertilizer should be decomposed before application. Fertilization should be in sunny days; Fertilizer should be applied to the roots, but fertilizer can't.

You must touch the leaves.

The fourth quarter finishing and shaping

Article 2.4. 1 Tree pruning should adjust the tree shape, balance the tree potential, adjust the ventilation and light transmission of trees and the distribution of fertilizer and water, and adjust the relationship between plant communities to promote the vigorous growth of trees. The pruning of trees and shrubs in all kinds of green spaces is mainly natural trees. Because of the ornamental requirements, trees can be modeled according to the characteristics of their growth and development, and the crown can be trimmed into a certain shape.

Article 2.4.2 Trees: mainly prune and remove long branches, pests and diseases, cross branches, nodes, drooping branches, sprained branches, dead branches and rotten heads. The main pole of street trees is required to be 3.2m high; In case of overhead lines, they should be pruned in a cup shape (Platanus acerifolia should be pruned in a cup shape of "three main branches, six branches and twelve forks"); The crown is round and balanced; The width of the canopy should not cover all roads, and there should be a gap in the middle of the road for scattering waste gas.

Article 2.4.3 Shrubs: Prune the shrubs to make the branches and leaves lush and evenly distributed; Pruning of flowering shrubs should be conducive to promoting the formation of short branches and flower buds. Pruning should follow the principle of "from top to bottom, from inside to outside, from the weak to the strong, from the old to the new".

Article 2.4.4 Hedges: Hedges should be trimmed and their branches should be promoted to keep the whole plant flourishing; It can also be trimmed, and hedges with special shapes should be trimmed step by step.

Article 2.4.5 Ground cover plants and climbing plants: Pruning of ground cover plants and climbing plants should promote branching, accelerate covering and climbing; For perennial climbing plants, vines should be turned regularly to remove dead branches and sparse old and weak vines.

Article 2.4.6 When pruning, all incisions must depend on the section, and the incision should be inclined at 45 degrees on the opposite side of the bud cutting; The incision should be smooth and coated with garden preservatives. For large branches that are too thick, the method of cutting branches should be adopted to prevent tearing, and the operation must be safe.

Article 2.4.7 The pruning during dormancy is mainly plastic surgery, which can be slightly re-cut; Pruning during the growth period is mainly to adjust the tree potential, so pruning should be light. Trees with bleeding should be pruned in summer and autumn.

Article 2.4.8 Fruit tree pruning shall be carried out according to the technical requirements of various fruit tree pruning.

Section 5 Protective facilities

Article 2.5. 1 Fence: In order to prevent people, animals or vehicles from colliding with trees, various fences, hedges or other measures can be adopted around trees without affecting sightseeing, viewing and landscape. Trees in animal cages must be made of metal materials.

Article 2.5.2 On the eve of rainstorm warning, tall trees should follow the principle of "prevention first, comprehensive prevention". In view of the characteristics of shallow roots, windward, huge crown, dense branches and leaves and poor site conditions, six comprehensive measures were taken, including upright, binding, enlarging, righting, thinning branches and piling. Take precautions before the end of June. 1. Erection of columns: On the eve of rainstorm warning, the unqualified columns and their binding conditions should be corrected in time. Second, bundling is a temporary measure. It is advisable to bind the branches with No.8 lead wire or rope, and the binding points should be padded with rubber to avoid damaging the branches; The other end must be fixed; Or you can connect multiple trees in series and fix them. 3. Adding soil: When the soil in the pit is low and prone to waterlogging, soil must be added before the rainstorm warning to keep the soil around the root neck steamed. Fourth, righting: generally in the dormant period of trees; However, for trees whose trees have been seriously tilted, before the storm comes, posts should be erected, lead wires should be tied, and the righting work after the storm should be done well. 5. Thinning: According to the site conditions and growth conditions of trees, especially the branches that may collide with overhead lines and the branches that are too dense, thinning or short cutting should be adopted in different degrees. 6. Piling: It is an emergency measure. In this paper, aiming at the stumps placed horizontally at the base of the trunk, such as the windward alley mouth, the stumps are cut into lengths equal to the length of the trunk and the side stones by using the side stones on the sidewalk, so that one end of the stumps is close to the base of the trunk and the other end rests on the side stones. Throughout the rainstorm season, you should also check and make up lessons at any time.

Article 2.5.3 Rescue Work 1. During the rainstorm warning, the fallen trees that affect traffic should be conveniently pulled to the sidewalk, and some branches of the crown should be trimmed in time. Two, after the rainstorm, should be divided into priorities for rescue, first of all, to rescue the city and suburban main roads that hinder traffic and lodging plants; For the trees that are difficult to survive in the local rescue, the crown should be forcibly cut down and then transferred to the nursery for planting and maintenance. Three, after the rainstorm, the obstacles that hinder traffic should be removed in time and reinforced visually.

Article 2.5.4 For trees vulnerable to freezing injury, the rhizosphere soil should be cultivated and the trunk should be bound for cold protection in winter.

Article 2.5.5 When the branches and leaves are covered with snow, they shall be removed in time; Trees in danger of lodging should be supported and protected by pillars.

Section 6 Planting Trees

The missing trees in Article 2.6. 1 should be replanted as soon as possible.

Article 2.6.2 replanting season 1. Deciduous trees: replanting should be carried out after thawing in spring and before germination, or before freezing after defoliation in autumn. 2. Conifers and evergreen broad-leaved trees: replanting after soil thawing in spring and before germination; Or replant before first frost after the new buds stop growing in autumn.

Article 2.6.3 The replanted trees should use the original tree species with similar specifications; If the tree species or specifications are changed, it must be in harmony with the original landscape. The replanted street tree species must be consistent with the tree species in the same section.

Section 7 Excavation of Dead Trees

Article 2.7. 1 Dead trees in urban and suburban main roads, street greenbelts and major scenic spots in parks and squares shall be dug up by roots in time, and the pits and grooves shall be filled. Dead trees in parks, squares and other non-main roads, street greenbelts and other scenic spots can be replanted.

Article 2.7.2 Dead trees and ancient and famous trees must be reported to the municipal competent department of landscape architecture for examination and approval before excavation. No unit or individual has the right to dig without authorization.

Chapter III Maintenance of Ground Cover Plants and Lawns

The first section quilt

Article 3. 1. 1 Ground cover plants should be weeded and intertilled several times a year at the initial stage of open field; Weeding and intertillage should prevent damage to roots and underground stems.

Article 3. 1.2 When the weather is dry, water the soil timely and appropriately. Fertilization should be widely carried out in early spring before germination, and the method of applying thin fertilizer frequently should be adopted.

Article 3. 1.3 If dead plants are found, they shall be dug up and replanted in time; Dead leaves and flowers should be sorted out at any time.

Article 3. 1.4 Woody ground cover plants with strong germination ability should be pruned in winter dormancy period. Plants should always be kept low in the growth process, and the height should not exceed 60 cm.

Article 3.65438 +0.5 Bulb root and perennial root ground cover plants, after growing for 3 ~ 4 years, when their roots are crowded and affect their normal development, they should be transplanted in groups according to their physiological habits.

Cao Ping in the second quarter

Article 3.2. 1 Weeds in the lawn should be pulled out in time, and large weeds should be pulled out at any time; When there are too many weeds to purify, they should be cleared and resurfaced. Where there is perennial water accumulation in low-lying areas, it is necessary to fill the soil and level it or drain it with shallow ditches. Bare places should be replanted in time.

Article 3.2.2 In the growing season, the lawn should be cultivated, added with soil and suppressed in time to keep the soil flat and good air permeability. Grass should be rolled in time, and the height of grass should be controlled at 4 ~ 6 cm. The grass beside the roadside and roots should be trimmed neatly; Stones, gravel, branches and other sundries on the lawn must be removed before rolling grass. Rolling grass should be smooth and not short of corners; The cut grass should be removed in time.

Article 3.2.3 The edges of tree altars and flower beds on the lawn should be trimmed to keep the lines clear.

Article 3.2.4 Lawn should be fertilized once before germination; In the growing season, chemical fertilizer can be topdressing according to the specific situation; When the soil is dry, water it in time.

Article 3.2.5 Lawn should be closed after the soil is too wet or hardened and watered.

Chapter IV Maintenance of Flower Beds and Flowers

Section 1 flower beds

Article 4. 1. 1 The technical measures and management quality standards for graded maintenance of flower beds shall be formulated according to the grading standards of different flower varieties and flower beds.

Article 4. 1.2 Except for intercropping, the flower beds must be deeply plowed and raked before planting, and the stones, grass clippings, residual stems, fallen leaves and other sundries in the soil should be removed, and sufficient base fertilizer should be applied.

Article 4. 1.3 The protection facilities of flower beds should always be kept clean and in good condition.

Section 2 flowers and plants

Article 4.2. 1 Summer flower seedlings should be transplanted in the morning, evening or cloudy day.

Article 4.2.2 Water immediately after transplanting. Water should be done within 4-5 days after transplanting. When watering, prevent the soil from rushing to the stems and leaves. After watering, it should be carried out according to the actual situation.

Article 4.2.3 In the peak period of flower growth, intertillage and weeding should be done in time, and topdressing should be done, and water should be sprayed immediately after fertilization.

Article 4.2.4 withered pedicels and yellow leaves should be cut off in time to keep the flower beds clean, and the missing plants should be replanted in time; All varieties that need to be picked should be picked in time.

Article 4.2.5 Woody flowers should be trimmed and reshaped in time; Perennial flowers should be updated in time; Flowers that are prone to lodging should be tied tightly with posts.

Chapter V Protection of Ancient and Famous Trees

Article 5.0. 1 Ancient and famous trees shall be protected by archives and signs.

Article 5.0.2 Site conditions unfavorable to the growth of ancient and famous trees must be improved in time; The rotten part should be treated by surgery to keep its ancient and vigorous shape.

Article 5.0.3 Ancient and famous trees are vulnerable to moth-eaten pests, and practical measures should be formulated to prevent and control them in time.

Article 5.0.4 Relevant scientific and technical personnel shall be organized to formulate rejuvenation measures for the old and famous trees whose growth declines, and special persons shall be appointed to be responsible for their maintenance.

Article 5.0.5 Inclined ancient trees should be supported to prevent lodging and pay attention to beauty.

Article 5.0.6 Dead ancient and famous trees with historical background and commemorative significance shall be preserved by erecting monuments.

Chapter VI Pollution Prevention and Control

Article 6.0. 1 The pollution of garden plants by waste gas, waste liquid and waste residue shall be handled in accordance with the laws and regulations of the central government and this Municipality on environmental protection.

Article 6.0.2 The sewage pipe network and drainage pipe network in the green space shall be unblocked and effective.

Article 6.0.3 The use of fertilizers and chemicals shall be reasonable and shall not pollute the environment.

Article 6.0.4 It is forbidden to pile up waste liquid, waste residue and dump pollutants near the rhizosphere of trees.

Article 6.0.5 If there are estimated pollution sources around the green space, the planting of garden plants resistant to harmful gases should be adjusted.

Article 6.0.6 It is forbidden to use human excrement in all kinds of green spaces.

Chapter VII Prevention of Diseases, Weeds and Pests

The first section pest control

Article 7. 1. 1 Maintain ecological balance and implement the prevention and control policy of "prevention first, comprehensive management". Make full use of the diversity of vegetation in the garden, protect and multiply natural enemies, and inhibit pests and diseases.

Article 7. 1.2 The import and export of seedlings must strictly abide by the national and municipal laws and regulations on plant quarantine.

7. 1.3 The forecast of garden pests and diseases should be done well, and long-term and short-term control plans should be made.

Article 7. 1.4 Strengthen the prevention and control of garden pests and diseases in street trees, street greenbelts, squares and land and water traffic arteries in this city. Areas where serious pests and diseases occur must be dealt with immediately.

Article 7. 1.5 The prevention and control of the common and serious "five minor diseases and two diseases" of garden plants in this city must be strengthened. The five little fingers are "scale insects, aphids, whiteflies, thrips and spider mites", and the second disease refers to "virus disease and nematode disease". It is also necessary to prevent and control "longicorn beetles" and "fungal diseases".

Article 7. 1.6 prohibits the use of highly toxic chemicals and organochlorine and organomercury chemical pesticides. Chemical pesticides should be implemented in accordance with the relevant provisions of safe operation.

Section 2 Use of Herbicide

Article 7.2. 1 When using herbicides, we should know the performance of herbicides, the species and ecological habits of weeds, the species of flowers and trees in the use area, and the sensitivity to herbicides. The types, proportions and methods of herbicides were determined through small-scale experiments. Effectively be safe and effective. The use of highly toxic herbicides is strictly prohibited.

Article 7.2.2 When preparing chemicals, standard measuring tools shall be adopted, and compatibility shall be carried out according to the proportion determined by experiments and the needs of the day; Compatibility of drugs, should avoid sun exposure.

Article 7.2.3 Spraying shall strictly prevent pollution of flowers and trees. For sensitive flowers and trees, especially the production green space, it is necessary to draw protection lines or set up protective objects for isolation. Spray evenly. When there is wind, pay attention to the wind direction. It is not advisable to spray medicine when the wind is strong.

Article 7.2.4 When working on the lawn, there should be a protective pad under the medicine barrel, and the liquid medicine should not overflow.

Article 7.2.5 After using chemicals, tools should be cleaned immediately, and the cleaned water should not be poured near the roots of plants, on lawns or in water. Workers who apply pesticides should wash their hands and faces after completion.

Article 7.2.6 Smoking is prohibited at work; Pregnant women should not be involved in the operation of herbicides.

Article 7.2.7 During the residual period of herbicide, the area where herbicide is used shall be closed.