On the one hand, it is necessary to strengthen the maintenance of existing greening. It is necessary to strengthen the bidding for municipal public greening maintenance, improve the assessment system and scoring standard of greening trusteeship, adhere to the system of eliminating unqualified trusteeship, strengthen the assessment of contracted greening trusteeship units in Yantian District, and improve the level of greening trusteeship. On the other hand, it is necessary to strengthen the protection of natural ecological sensitive areas such as hillside woodlands, rivers and lakes, and wetlands. Maintain the natural features of urban areas and oppose the artificial and urbanization tendency of excessively changing natural forms. In urban development and construction, we should protect the original trees, especially the big trees and ancient trees; In the process of road reconstruction, it is opposed to blindly changing tree species and transforming green space on a large scale, and it is forbidden to cut down and transplant street trees at will; Resolutely investigate and deal with the acts of occupying, destroying green space and arbitrarily changing the nature of green space to destroy urban greening.

(two) to strengthen the comprehensive improvement of the environment, step by step to carry out greening and upgrading work.

Comprehensively improve the environment of exposed loess areas in the whole region, especially the land behind Yantian Port, and comprehensively solve the problem of loess exposure caused by green blind areas; Focus on the investigation and rectification of roads without trees, and investigate the leakage of street trees. In order to avoid redundant construction and blind investment, on the basis of reasonable planning, the greening upgrading and transformation work in the whole region will be gradually carried out. For areas where regional development and construction have begun to take shape and municipal facilities are perfect, we should focus on strengthening greening and upgrading. In 2007, Yantian District completed the greening and upgrading project of waterfront plank road in Shatoujiao, which enriched the varieties and levels of greening plants on waterfront plank road, made the garden layout and beautification more prominent, and received good environmental effects and social repercussions. In 2008, we can start the greening and upgrading of the expressway entrance and exit areas, and at the same time, we can start the road tree hole reconstruction and environmental decoration projects. The reconstruction project should increase the number of trees, shrubs and ground cover plants through scientific and reasonable plant allocation, strive to increase the biomass of unit green space, make full use of limited land resources and maximize the ecological benefits of green space; It is necessary to appropriately reduce the proportion of lawns and reduce the use of plastic and other architectural sketches and large fountains; For the existing green space with too large lawn area, trees and shrubs, ground cover plants and perennial flowers should be replanted reasonably; It is necessary to strengthen the greening construction of urban green isolation belts, urban road isolation belts and street trees, increase the proportion of tree planting in isolation belts, and build tree-lined roads; Advocate three-dimensional greening, and carry out vertical greening in all available places, such as overpasses, corridors, garbage transfer stations, public toilets, etc., to further improve the biomass of unit green space and achieve the effect of greening, beautifying and artistic environment. For areas where regional development and construction are still in progress and the municipal facilities are not perfect, in order to achieve the effect of greening and beautifying the environment, temporary simple greening should be carried out in the greening construction, and comprehensive environmental improvement should be implemented to avoid loess exposure and improve the dirty, chaotic and poor environment.

(three) actively implement the task of landscaping construction assigned by the higher level government, and create a green ecological city.

It is necessary to complete all the tasks of landscaping construction assigned by the higher government to the letter, create a green ecological city, and actively promote the pace of building an "ecological city" in Shenzhen. In 2008, rhododendrons will be widely planted along the main roads, parks, public green spaces and second-line passes throughout the city to show the characteristics of the city; We should continue to promote the construction of community parks and build a "park city"; In the city square, idle land, demolition of illegal land and other areas that can all be green, see the gap inserted green.

(four) to strengthen publicity and actively guide the society to participate in landscaping work.

Strengthen the role of the government in resource coordination, concept guidance, planning control, policy guarantee and technology promotion, and actively guide and promote the whole society to participate in urban greening construction. Strengthen the greening planning control requirements of real estate projects, industrial parks and other construction projects, guide enterprises to increase the planting amount of trees and shrubs through scientific plant allocation, strive to improve the biomass of unit green space, make full use of limited land resources, and maximize the ecological benefits of green space. Promote three-dimensional greening, vertical greening in all available places, and promote roof greening. At the same time, strengthen publicity, actively guide, use "Arbor Day", "Sixth Five-Year Plan" World Environment Day and other festivals to guide society to participate in the construction of eco-cities, and mobilize all sectors of society, enterprises and organizations to actively donate and commend urban greening trees.

Scientific planning, pioneering and innovation, urban greening to beautify and artistic transformation.

The urban greening work in Yantian District has put forward new requirements, which require high starting point planning, high standard construction and high level management of landscaping construction in Yantian District.

(A) high starting point planning

Although the urban landscaping work in Yantian District has the advantages of "favorable weather, favorable geographical location and harmonious people", it also has some disadvantages, such as less available greening land, chaotic greening construction planning, poor soil quality and serious automobile exhaust pollution. Therefore, it is particularly necessary to carry out green space system research and ecological planning research projects in Yantian District, plan garden greening construction in Yantian District from a high starting point, select beautiful vegetation suitable for planting in Yantian District, and carry out greening construction or upgrading in a planned and systematic way. It is necessary to plan the vegetation with trees as the main body, rich plant species and the characteristics of the south subtropical evergreen broad-leaved forest from a high starting point, build an urban garden ecosystem with stable ecological functions and good ecological benefits, increase the total plant resources, and initially form a "multi-tree, multi-level, multi-color, multi-functional and multi-benefit" urban garden landscape system. Urban greening has changed to beautification and artistry, and Yantian District will be built into an international garden city with beautiful coastal ecological landscape and forest green landscape, the most livable city and the "ecological garden city" with the richest biodiversity per unit area.

1. Adhere to the policy of "synchronous planning, synchronous construction and synchronous development" in urban green space construction and urban infrastructure construction, vigorously advocate ecological greening with low maintenance cost, and realize the goals of building, greening and beauty.

2. Actively carry out three-dimensional greening, popularize roof greening, build a multi-layer greening community with native tree species as the main body and combining arbor, shrub, grass and vine, increase the biomass of unit land, and transform urban greening into beautification and art.

3. The construction of park green space should pay attention to the characteristics of culture and landscape according to the planning, so as to achieve "a view of the park is indispensable"; Street green space should be combined with surrounding roads and buildings, handle the relationship between traffic and landscape with the city, and play a "finishing touch" role.

4. The selection of street trees should fully consider the requirements of landscape, shading and wind resistance. On the premise of meeting the function, we should plan and construct rationally to achieve "one road, one scene", with diverse tree species and distinct layers. But we should seek change in unity and not be too chaotic. The roadside trees in urban main roads should choose tall trees with strong anti-pollution ability; As far as possible, green belts are set aside on both sides of the expressway to build soundproof forests and have the function of scenic woodlands; Urban secondary roads should choose tall and shady evergreen trees as far as possible to form green corridors.

5, ecological green space should be under the premise of protecting the ecosystem, gradually transform the stand, repair the damaged mountain, as far as possible to maximize the amount of green. In areas where mountains are connected with cities, vegetation with poor tolerance and strong soil-fixing ability should be selected to reduce soil erosion. It is necessary to plan the characteristics of mountain forest landscape selectively, so that the mountain forest background presents a more beautiful landscape with the changes of seasons. Systematic park planning should be carried out for suburban mountain forests, and a number of country parks with different functions and characteristics should be established to meet the needs of citizens for leisure, viewing, recreation and fitness.

(2) High standard construction

For the main roads, important nodes, external contact windows and other areas of the city, high-standard design and high-standard construction of landscaping will highlight the urban style and cultural landscape. It is necessary to strengthen the greening construction of urban green isolation belts, urban road isolation belts and street trees, increase the proportion of tree planting in isolation belts, and build tree-lined roads. At the same time of high standard construction, we should adhere to the road of conservation-oriented urban landscaping.

1, rational use of land resources. Land resources are the basis of urban landscaping. While ensuring urban landscaping land, we should rationally plan landscaping construction land according to the principle of saving intensive land. On the premise of effectively integrating urban land resources, meet the demand for urban greening construction land as much as possible; During the construction, the original landform features should be maintained as much as possible, the use of foreign soil should be reduced, and the construction behavior of blindly changing the landform and causing soil waste should be opposed; It is necessary to realize the normal growth of plants and the improvement of soil efficiency through the rational allocation of green plants and soil improvement.

2. Strengthen scientific planning and design. Through scientific plant allocation, increase the planting amount of trees and shrubs, strive to improve the biomass of unit green space, make full use of limited land resources, and maximize the ecological benefits of green space. It is necessary to appropriately reduce the proportion of lawns and reduce the use of plastic and other architectural sketches and large fountains. For the existing green space with too large lawn area, trees and shrubs, ground cover plants and perennial flowers should be replanted reasonably.

3. Actively advocate the application of native plants. In the construction of urban garden green space, we should give priority to local tree species with low cost, strong adaptability and distinctive land characteristics, actively use natural plant communities and wild vegetation, vigorously promote perennial flowers and ground cover plants with strong self-sowing ability, and create a natural landscape with strong local characteristics and local flavor. Oppose the tendency of one-sided pursuit of high-grade tree species, unnecessary anti-season tree species, and introduction of exotic tree species that are not suitable for local growth. There are few species of palm plants. Palmae plants are beautiful in appearance, but their crown width is small, their ability to adjust microclimate is limited, their diseases and insect pests are serious, and their maintenance cost is high. When pests occur, the landscape effect is poor, the treatment is not timely, and the seedlings often die.

4. Implement natural ecological construction. Actively promote the ecological and natural construction and restoration of slope protection and bank protection of urban rivers and landscape water bodies. Build ecological squares and parking lots, minimize the proportion of hard pavement, and plant trees for shade. Try to use breathable and water-permeable environmental protection materials for ground pavement to improve environmental benefits. Resolutely correct unhealthy trends such as excessive use of high-grade materials, expensive lamps and lanterns, and planting fake trees and flowers in green space. Reduce the proportion of high-standard lawns, hedges, flower beds and other green spaces that are not conducive to biodiversity protection.

(3) Top management

Landscaping is divided into three species and seven species. Only high-standard planning and high-standard landscaping can achieve the expected effect and sustainable development, and high-level management highlights the importance.

1. Strengthen the bidding for municipal public greening maintenance, improve the assessment system and grading standards for greening custody, adhere to the system of eliminating unqualified custody, strengthen the assessment of contracted greening custody units in Yantian District, and improve the level of greening custody.

2. With the goal of establishing an ecological, humanized, systematic and gridded green space system, we should expand from the garden green space system confined to the city in the past to the regional ecological system, and attach importance to the protection, restoration and construction of the ecological function of green space. It is necessary to strictly implement the Regulations of Shenzhen Municipality on the Management of Basic Ecological Control Lines, strengthen supervision and management, maintain the scientificity, integrity and continuity of the ecosystem, and realize the transformation from "planning and construction" to "planning and protection".

3. The greening management and maintenance work should take the road of conservation-oriented landscaping. It is necessary to vigorously promote the water-saving technology of landscaping, actively carry out the recycling of reclaimed water and rainwater, and adopt water-saving measures such as micro-spraying and drip irrigation to reduce the cost of garden management and maintenance; Popularize the utilization of garden waste such as branch crushing, expand the productivity of branch crushing and fertilizer making, reduce the occupation of landfill capacity by green garbage, and develop garden circular economy; Further strengthen the application of circular economy projects such as solar energy and wind energy in landscaping projects. For more information, please refer to the website of Jingguang Huayi Company.