2.1.1 The city should build a green space system that is compatible with the city's scale, layout structure, and landscape features, determine the scale and layout of park green spaces, protective green spaces, attached green spaces, and regional green spaces, and implement landscaping projects.

2.1.2 The construction of the urban green space system should realize the functions of protecting the urban ecological environment, maintaining the integrity of the urban ecological space structure, satisfying scenic recreation and safety protection, and should comply with the following regulations:

2.1.3 The area of ​​park green space should be compatible with the scale of urban development. The per capita park green space area should be greater than 8.0 square meters per person, and the park green space service radius coverage should be greater than 80%.

2.1.4 Cities should build comprehensive parks and community parks that match the population size. The per capita comprehensive park area and per capita community park area should be greater than 3.0 m per person respectively.

2.1.5 Cities should allocate various types of parks by grade and classification, build a park system, and should meet the following regulations:

2.1.6 Greenways should connect various parks and urban and rural green open spaces, and should promote their compatibility with the urban slow traffic system to build a green ecological network connecting inside and outside the city.

2.2.1 The park should create a natural landscape environment, and should set up garden roads, activity venues and facilities that meet functional needs; the base site should not have geological safety or soil pollution hazards.

2.2.2 The landscaping Dingcheng project should protect the buildings (structures) with cultural value and historical relics and natural relics with scientific value in the base site.

2.2.3 The proportion of green land in the park should be greater than 65% of the land area, and the proportion of green land in the square should be greater than 35%.

2.2.4 Park roads and activity venues should be set up in the park that are suitable for the visitor location and visitor size. Comprehensive parks, community parks, amusement parks and country parks should set up fitness activity venues.

2.2.5 The park should be equipped with rest seats, trash cans, signs, garden lights and other basic facilities for recreation, service and management, and should comply with the following regulations: 1. Parks with an area of ​​2 hours or more should be equipped with toilets, security monitoring and shade shelters. Rainfall facilities; 2. Parks with an area of ​​10 hours or more should be equipped with parking lots and management rooms; 3. Parks with an area of ​​20 hours or more should be equipped with information service stations; 4. Parks with an area of ​​50 hours or more should be equipped with medical aid facilities and green waste disposal facilities. ; 5. Parks that undertake the function of disaster prevention and avoidance should set up emergency escape facilities that are suitable for the functions. The emergency escape facilities should be set up to avoid the protection range of cultural relics protected buildings and ancient and famous trees.

2.2.6 Historical gardens should protect the original mountain water system, plants and buildings to the greatest extent possible.

2.2.7 Road greening, residential area greening, unit greening and public building greening should achieve the functions of ecological improvement, environmental beautification and convenient use of the land used. Appropriate plant species and planting methods should be selected and should comply with the following regulations: 1 Road greening should meet the safety requirements for vehicles and pedestrians; 2. Concentrated green spaces in residential areas should be set up with activity venues of a certain area; 3. Unit greening and public building greening should be connected with road greening, adjacent building landscape environments and sites.

2.2.8 The scale and number of toilets should be based on the visitor capacity and should comply with the following regulations: 1. Parks with an area less than 10h should be equipped with toilet seats based on 1.5% of the visitor capacity; parks with an area greater than or equal to 10hm2 Toilet seats should be installed at 2% of the tourist capacity; 2 Children's special toilets or toilet seats should be set up in or near children's recreation areas; 3 The ratio of toilet seats should be reasonably allocated according to the gender and age composition of tourists.

2.2.9 Municipal facilities such as urban electricity, telecommunications, water supply and drainage should meet the needs of park facility construction.

2.2.10 Ancient and valuable trees within the park base site should be retained in situ, and the protection scope should not be lower than the area 5m outside the vertical projection of the tree crown.

2.2.11 Parks and greenways should be equipped with signs, signs, safety monitoring and information release facilities, and should comply with the following regulations: 1. The main entrances and exits of the park should be equipped with green line signs, location signs, barrier-free signs, emergency signs, safety monitoring and Information release and other facilities; 2. Guidance signs should be set up at the intersections of the park's main park road and greenway roads; 3. Position signs, barrier-free signs and emergency signs should be set up around the park's main attractions, service centers, toilets and various public facilities; 4 Warning signs, safety warning lines, safety monitoring and other facilities should be set up in areas that may affect personal safety.

2.3.1 After the landscaping project is completed, the maintenance and management period should not be less than one year.

2.3.2 Garden plants should be maintained regularly. Water sources should not be polluted in the prevention and control of plant diseases and insect pests. The use of highly toxic and highly toxic pesticides is prohibited. Pesticides should not be used in the prevention and control of aquatic plant diseases and insect pests.

2.3.3 The operation and management of the park should improve various service measures and comply with the following regulations:

2.3.4 The park should establish a safety management system, implement various safety measures, and comply with the following regulations:

2.3.5 Various service facilities in the park should ensure the public welfare of the services, and should not carry out business activities that are contrary to the purpose of serving tourists.

2.3.6 Lightning protection facilities should be installed on ancient and valuable trees and buildings (structures) that are at risk of lightning strikes.

3.1.1 The original soil within the landscaping T-project base site and the foreign soil and filler used to shape the terrain should not contain pollutants and radioactive substances that are harmful to the environment and the safety of people, animals and plants.

3.1.2 The landscaping process should be fully combined with the vertical shaping of the terrain of the base site, and should comply with the following regulations:

3.1.3 The bearing capacity of soil piles should be calculated, and the stacking height should be suitable for the pile range; the natural slope of soil piles should be set according to the natural rest angle. When the slope exceeds the natural rest angle of the soil, slope protection and barriers should be used. Engineering measures such as walls, soil consolidation or erosion prevention.

3.1.4 The scope of terrain shaping, filling and excavation should avoid the protection range of ancient and famous trees, and good drainage conditions should be ensured for the tree roots.

3.1.5 Harmful soil should not affect the normal growth of plants. When the soil quality is poor, soil improvement or planting soil should be replaced.

3.1.6 Planting soil and fertilizers in the landscaping process must not pollute water sources.

3.2.1 Park roads and activity venues should have the function of guiding tourists and facilitating the gathering and dispersion of tourists, and should comply with the following regulations:

3.2.2 The entrances and exits of parks and squares, main park roads, recreational and service buildings should meet barrier-free requirements.

3.2.3 Garden paths and activity venues should not be set up near natural rock walls or steep slopes that have potential risks of geological hazards and mountain stability.

3.2.4 The slope of the garden road and paved activity site should be conducive to drainage. The longitudinal and transverse slopes of the garden road should not be zero at the same time, and the surface drainage slope of the site should be greater than 0.3%.

3.2.5 Permeable paving materials and renewable materials should be given priority for the paving of garden roads and activity venues; permeable paving should meet load, anti-skid and other functional and durability requirements.

3.3.1 Plant selection should be suitable for the site and trees. Priority should be given to native plants and plants that are suitable for the local area after introduction and domestication. Natural ecological resources should be protected in conjunction with the site environment.

3.3.2 Plant planting should follow natural laws and biological characteristics, and should not be planted out of season or overly densely planted.

3.3.3 There should be no poisonous, thorny or other plants that are easily harmful to children in and around children’s activity venues.

3.3.4 The minimum horizontal distance from the center of the root neck of trees to the outer edge of structures and municipal facilities shall comply with the provisions of Table 3.3.4.

3.3.5 The three-dimensional greening on the top surface of underground spaces, building roofs and structures should ensure the natural growth of plants, and a waterproof drainage and irrigation system should be set up on the impermeable layer, and should comply with the following regulations:

3.3.6 Plant materials that are not subject to quarantine and have damage levels or traces of damage from diseases and insect pests greater than 10% of the tree body shall not be used.

3.4.1 Landscaping projects that undertake the function of flood storage and detention and use land adjacent to water bodies should not set up buildings (structures) and facilities that hinder flood discharge in the flood discharge channel.

3.4.2 The total construction area of ​​the park should not exceed 1.5 times the building area.

3.4.3 The structural strength of the frames and corridors that support the climbing of vines should meet the load requirements for the long-term growth of the plants. The mesh structure of the vines' grid should prevent children from climbing.

3.4.4 The structural strength of artificial stacked rockeries should meet wind and seismic strength requirements, and should comply with the following regulations:

3.4.5 The clearance height between the bottom of the bridge where cruise ships pass and the normal water level should be greater than 1.50m.

3.5.1 In areas with activity venues on the shore of water bodies, protective facilities should be installed under the following conditions:

3.5.2 Safety guardrails should be installed on garden roads and activity venues near mountains or rivers where there are potential safety hazards, and should comply with the following regulations:

3.5.3 Children’s activity venues and facilities should not have sharp corners or hard thorns.

3.5.4 The water quality of recreational landscape water that is not in direct contact with the human body should meet the surface water class standard. The water quality of ornamental landscape water that is not in direct contact with the human body should meet the surface water class W standard. The water quality of fountains that come into contact with tourists must not be harmful to human health. produce adverse effects.

3.5.5 Pipelines and facilities used for plant irrigation should be equipped with obvious signs to prevent accidental drinking and accidental connection.

1. At least two or more entrances and exits should be provided, of which at least one main entrance should be connected to the urban arterial road;

2. The city’s natural landscape, historical and cultural resources, and urban ecological restoration areas should be fully utilized.

1 Comprehensive parks with an area larger than 20hm2 should have a dedicated entrance and exit for maintenance management in addition to the main and secondary entrances;

2. The main garden road should be connected with the main entrance and exit and form a loop.

1. It should comply with the safety requirements for animal life, tourist viewing and feeding and management;

2. The basic welfare requirements of animals should be ensured, and enrichment facilities should be set up according to the physiological characteristics and natural behavioral characteristics of animals;

3. An area and environment suitable for the normal life of animals should be provided.

1. The wetland water system layout should respect and protect the natural wetland water system pattern and form;

2 For wetlands that bear the function of urban flood control and drainage, the water level and elevation control points should be determined according to the design flood discharge meteor, design flood level and design drainage current;

3. Plant habitat creation should restore more than 50% of the typical local wetland communities, and alien invasive species must not be used;

4. Groundwater should not be extracted and tap water should be used as wetland water source.

1. The green space rate of main roads should be greater than 20%;

2. The clear width of the road separation zone for planted trees for motor vehicles and non-motor vehicles should be greater than 1.5m.

1. The height of branch points of street trees should not affect vehicle and pedestrian traffic;

2. The spacing between rows of street trees should be determined based on the crown width of the tree species in their prime. 8.0.5 Road greening should be coordinated with relevant municipal facilities, and the relationship with road lighting, transportation facilities, above-ground pole lines, underground pipelines, security monitoring and other facilities should be coordinated, and the site conditions and growth necessary for the normal growth of trees should be ensured. Space; initial runoff rainwater from the roadway that has not been purified shall not be discharged directly into the road green belt.

1. Mountains, rivers, lakes, wetlands, and coasts should be protected, and damage to the topography along the lines is strictly prohibited;

2. Natural vegetation should be protected, and original trees within the construction area should be retained and utilized;

3 Ecologically sensitive and ecologically fragile areas should be avoided.

1. Areas prone to natural disasters such as mudslides, landslides, collapses, ground subsidence, subsidence, and earthquake fault zones and unfavorable geological zones should be avoided;

2. Greenways along rivers and waterfronts should comply with flood control standards where Dingcheng is located.

1. The width of the isolation green belt should be greater than 1.0m; when the isolation width of the greenway trail and the motor vehicle lane is less than 1.0m, isolation piers or guardrails should be set up for safe isolation.

2. In road sections where hard isolation cannot be set up, traffic markings should be set up between the greenway trails and motor vehicle lanes, and motor vehicles are prohibited from traveling on the greenway trails.

3. When a motor vehicle road with a traffic speed greater than 50km/h does not have the conditions for setting up isolation facilities such as isolation green belts, isolation piers, guardrails, etc., the greenway trails should not be set up on the same board.

1. The greenway connection line should not directly use national highways, provincial highways and other trunk roads and expressways;

2 The greenway connection line should use road traffic signs, greenway marking facilities, safety isolation facilities, etc. to effectively organize traffic and connect functions.

1. An ecological space network that coordinates urban and rural areas should be established around towns and between towns, and green isolation areas, ventilation corridors, ecological corridors and facility protection green spaces should be retained and set up;

2. The various functional groups in the town should be isolated from each other by using natural mountains, rivers and lakes, farmland and forest networks, transportation and public facilities corridors, etc., and should be connected with the green ecological space outside the town.

1. Protective green spaces such as railways, highways and expressways should have an isolation width to ensure traffic safety, and plant planting should achieve sound insulation and noise reduction functions;

2. Protective green spaces such as water plants and water sources should be wide enough to ensure sanitary isolation, and plant planting should achieve the function of conserving water sources;

3. In flood detention areas and mountains with potential geological hazards, protective green spaces should have an isolation width to ensure safety, and plant planting should not hinder flood discharge.

1. Native tree species that are resistant to pollution, highly adaptable, and low-maintenance should be selected;

2 Depending on the source of pollution and the nature of protection, plant planting should adopt a corresponding layered structure.

1. Natural habitat types, biodiversity, and ecosystem integrity and ecosystem service functions should be protected and cultivated;

2. The types of introduced plants should be strictly controlled, and the planting of invasive plants is strictly prohibited;

3. Facilities unrelated to ecological conservation should not be built, and the construction of environmental monitoring and scientific research facilities should not cause damage to the ecological environment;

4. Activities unrelated to ecological conservation should be restricted.

1. Urban green spaces and water ecosystems should be improved;

2. Urban protective green spaces should be improved to maintain urban ecological security;

3. Damaged ecosystem functions should be gradually restored, focusing on tending and restoring habitat types;

4. A certain scale of production and breeding base for native plants and suitable plants in the region should be set up according to conditions.

1. Respond to a thorough investigation and safety assessment of the ecological status of geology, soil, vegetation, etc.;

2. The hidden dangers of geological disasters should be eliminated and the natural forms of damaged mountains and water bodies should be restored;

3. Contaminated soil should be improved, water pollution should be controlled and self-purification capabilities should be improved;

4. Close-to-natural communities should be built to present natural vitality and restore natural ecology.

1. "Urban Green Space Design Code" GB 50420-2007 (2016 edition)

2. "Park Design Specifications" GB 51192-2016

3. "Urban Road Greening Planning and Design Code" CJJ 75-97

4. "Code for Construction and Acceptance of Landscaping Projects" CJJ 82-2012

5. "Zoo Design Code" CJJ 267-2017

In order to adapt to the prevailing rules of international technical regulations and technical standards, since 2016, the Ministry of Housing and Urban-Rural Development has successively issued the "Opinions on Deepening the Reform of Engineering Construction Standardization Work" and other documents, proposing that the government formulate mandatory standards and social groups formulate voluntary standards. The long-term goal clarifies the reform task of gradually replacing the scattered mandatory provisions in the current standards with full-text mandatory engineering construction specifications, and gradually forming a "technical provision composed of laws, administrative regulations, and departmental rules and full-text mandatory engineering construction specifications." "Technical regulations" system.

Regarding normative categories. The mandatory engineering construction specification system covers all types of construction projects in the field of engineering construction and is divided into two types: engineering project specifications (referred to as project specifications) and general technical specifications (referred to as general specifications). Project specifications take the entire engineering construction project as the object, and take the five major elements of the project as scale, layout, function, performance and key technical measures as the main content. The general specifications target the general technologies of various professions that realize the functional performance requirements of engineering construction projects, and take general technical requirements such as survey, design, construction, repair, and maintenance as the main content. In the full-text mandatory engineering construction specification system, project specifications are the backbone, and general specifications are regulations on common and common professional key technical measures for various projects.

About the five major factor indicators. The various elements in the mandatory engineering construction specifications are the basic regulations to ensure the systematization and efficiency improvement of urban and rural infrastructure construction, and are the basic requirements to support the high-quality development of urban and rural construction. The project scale requirements mainly stipulate that the construction project should have complete production or service capabilities and should be compatible with the level of economic and social development. The layout requirements of the project mainly stipulate the industrial layout, construction project site selection, overall design, general layout, and overall technical requirements that are coordinated with the scale. Reasonable distribution of supply capacity should be considered to improve the overall level of related facility construction. The functional requirements of the project mainly stipulate the project composition and purpose, and clarify the basic component units of the project, which is the guarantee for the project to play its expected role. The performance requirements of the project mainly stipulate the level of construction or technical level of the construction project, reflect the applicability of the construction project, and clarify the basic levels that should be achieved in terms of project quality, safety, energy saving, environmental protection, livable environment and sustainable development. . Key technical measures are the basic technical regulations for realizing the function and performance requirements of construction projects, and are the basic guarantee for the implementation of development goals such as safe, green, resilient, smart, livable, equitable, and efficient urban and rural construction.

Regarding the implementation of standards. Compulsory engineering construction regulations are mandatory and binding. They are the control bottom line for ensuring the safety of people's lives and property, personal health, project safety, ecological environment safety, public rights and interests, promoting the conservation and utilization of energy resources, and satisfying economic and social management. Requirements, the entire process of construction activities such as survey, design, construction, acceptance, repair, maintenance, and demolition of engineering construction projects must be strictly implemented. Among them, for existing building renovation projects (meaning that the existing use functions will not be changed), when the conditions do not When it is really difficult to meet and implement the current specifications, the standards should not be lower than those at the time of original construction. The recommended engineering construction standards supporting the mandatory engineering construction specifications are mature technical measures that have been tested in practice and ensure that the requirements of the mandatory specifications are met, and should also be implemented under normal circumstances. On the premise of meeting the project functions, performance requirements and key technical measures stipulated in the mandatory engineering construction specifications, relevant group standards and enterprise standards can be reasonably selected to optimize the project functions and performance or reach a higher level. Recommended engineering construction standards, group standards, and enterprise standards must be coordinated and matched with the mandatory engineering construction specifications, and the technical requirements must not be lower than the relevant technical level of the mandatory engineering construction specifications.

After the implementation of the mandatory engineering construction regulations, the mandatory provisions in the current national standards and industry standards for relevant engineering construction will be abolished at the same time. The mandatory provisions in the current local standards for engineering construction should be revised in a timely manner and should not be lower than the provisions of the mandatory engineering construction specifications. If the relevant provisions in the current engineering construction standards (including mandatory standards and recommended standards) are inconsistent with the provisions of the compulsory engineering construction specifications, the provisions of the compulsory engineering construction specifications shall prevail.

1.0.1 In order to build high-quality landscaping projects, create an ecological, livable, harmonious and beautiful urban environment, meet the people's needs for a better life and a beautiful ecological environment, and provide the people with fair access to green benefits, this document is formulated specification.

1.0.2 Landscaping projects must implement this specification.

1.0.3 Landscaping and greening projects should improve the urban ecological environment, provide recreational services, and realize the comprehensive functions of ecology, leisure, recreation, beautification, cultural inheritance, science education, and disaster prevention and avoidance.

1.0.4 Landscaping engineering projects should follow the following principles:

1.0.5. Whether the technical methods and measures used in project construction meet the requirements of this specification shall be determined by the relevant responsible entities. Among them, innovative technical methods and measures should be demonstrated and comply with the relevant performance requirements in this specification.