Implement three-dimensional greening to create a first-class environment
Published: 2008/2/19 10:22:34 Author: Lin Shenggui Visitors: 50116
In recent years, Yongan was awarded the title of "National Garden City" again in 2007 on the basis of being awarded the title of "China's Excellent Tourism City", "爱投彩票是真的吗town of Bamboo in China" and "Top Ten Charming Cities", which symbolized Yongan's urban construction Since then, a new chapter has been opened. Under the correct leadership of the Municipal Party Committee and Municipal Government, and the joint efforts of all relevant units and departments, Yongan's urban construction is moving towards the goal of "the city of the green capital of the southern country and the eight pearls and pearls of Yongan". The transformation of the asphalt pavement of urban arterial roads, the construction of night scene projects, and the implementation of the "one river and two rivers" landscape ecological corridor project all reflect the spirit of "practical and pragmatic" and the "down-to-earth" working spirit of the municipal party committee and city government. . The author believes that: urban greening in our city is still basically based on plane greening. To improve the greening grade, it is necessary to implement three-dimensional greening projects.
What is three-dimensional greening?
Three-dimensional greening, also called vertical greening, is a way to give full play to the advantages of space and use plants to green and beautify the environment. Its characteristics are small investment, quick results and low cost. Three-dimensional greening mainly includes roof greening, balcony greening, fence greening, wall greening, bridge greening, and three-dimensional flower beds. The sign of the implementation of the three-dimensional greening project is to popularize the roof greening, and to do a good job in balcony greening.
Functions and benefits of three-dimensional greening
Expert research shows that three-dimensional greening plays an important role in regulating urban wet temperature, producing oxygen, absorbing hazardous substances, reducing dust and smoke concentrations, and reducing noise pollution. Compared with the ecological value of trees of the same area, the amount of absorbed carbon dioxide, released oxygen, transpiration water vapor, transpiration heat absorption, etc. are 20 to 30 times that of the lawn. Experts call for China's urban greening to get out of the "planarization" misunderstanding as soon as possible and take the "three-dimensional greening" road. Three-dimensional greening can also extend the service life of buildings through the protective effect of green jackets. Greening of walls and greening of roofs can also produce an "insulation layer" effect. According to research, in the hot summer, there are creeper-covered walls. The surface temperature is 3 ° C to 5 ° C lower than that of the exposed wall surface, which can reduce the indoor temperature by 2 ° C to 4 ° C. For the top occupants of the building, the greening of the roof can save at least 50% of the energy used for air conditioning in summer and 50% of heating energy in winter.
Third, the development trend of three-dimensional greening at home and abroad
Many cities around the world attach great importance to three-dimensional greening, and many countries have entered the promotion stage. At present, the best greening of roofs is Germany, and the greening rate of German roofs can reach about 80%. As early as 1982, German legislation enforced roof greening, and the current policy still stipulates many effective measures to encourage three-dimensional greening. In Tokyo, Japan, the local government has stipulated that all property development companies that do a good job of "green roofing" can get preferential treatment in terms of taxes, fees, and loans. Enterprises and individuals who fail to meet basic greening requirements will be fined. In Paris, France, the government has also included roof greening in local urban planning. In China, Beijing was the first to propose the "tree-lined" greening guidelines and is committed to building three-dimensional green zones with good shading effects such as "tree-lined parking lots", "tree-lined squares" and "tree-lined roads". The roof leisure garden of a building in Xinjing Town, Changning District, Shanghai has an area of 8,000 square meters. Beijing and Shanghai follow the road of "three-dimensional greening".
Fourth, the feasibility of implementing three-dimensional greening project in Yongan
Because there is no land cost for three-dimensional greening, it has become the cheapest greening method in the central area of the city. In terms of natural conditions, Yong'an's climate, temperature, humidity, and sunshine are particularly suitable for plant growth. The city's forest coverage rate (82.2%), which ranks first in the province, is proof that Yong'an is now a national garden city. All the indicators meet or exceed the standards and requirements of national garden cities, which has laid a solid foundation for the implementation of three-dimensional greening projects.
Balcony greening has become very common in Yong'an. Between the high and low buildings in our city, some citizens have developed the roof of their homes into "hanging gardens" to achieve the purpose of self-cultivation and cultivating sentiment; and some citizens have their homes The rooftop development has become a "vegetable garden". They set up a water storage tank on the top of the building, connected the return water pipe, and used a small water pump to reuse the domestic living water. The green vegetables they planted were widely used. The three-dimensional planting of various flowerpots and other plants has no leakage problems such as soil and irrigation, and no hassle of pesticide application and harm from diseases and insects. The vegetables and fruits in its garden can not only basically achieve self-sufficiency in home vegetables, While purifying their own home environment, they also contribute to improving urban air quality.
However, three-dimensional greening is not a simple matter. We cannot wait until the citizens consciously implement the "three-dimensional greening project" before awakening. We must have advanced consciousness, give play to the advantages of the government, and make the "three-dimensional greening" the fastest. The idea is deeply rooted. We can refer to the implementation of the rural biogas project, install small and micro water pumps for enterprises and individuals implementing roof greening, encourage them to reuse wastewater, provide green pots for the general public, screen and recommend suitable varieties, and promote greening of fruits and vegetables. Co-existence of rewards and fines, selection of measures such as ecological communities, ecological buildings, and energy-saving and environmentally friendly homes to promote the rapid development of "three-dimensional greening" projects. This is a project that costs a little money, does something big, and is immediately welcomed by the public.
The far-reaching significance of implementing three-dimensional greening projects
For the first time, the 17th National Congress of the Communist Party of China has written the concept of "ecological civilization" into its political report. The implementation of the three-dimensional greening project can better promote "ecological civilization" and reflect the spirit of "advancing with the times"; second, it can better improve the urban environment, enhance the quality of the city, and increase the charm of the city; Establishing the citizen's awareness of material recycling will help reduce energy consumption per unit of GDP and achieve harmonious development between man and nature.
Let us take action-implement the "three-dimensional greening" project to create a first-class living environment
Let's join hands-promote the construction of "ecological civilization" and create the glory of the eight pearls
CPPCC Science and Technology Committee, Education Group: Lin Shenggui