Study On Necessary Elements In Sustainable Urban Landscape

With the fast development of the urbanization, cities expand to the rural area in an unimaginable speed. Human beings also achieve a rapid development of themselves. At the same time, the environment is deteriorating. More wasted gas and polluted water are discharging and natural disasters are also frequently to be seen. People's life quality decreases sharply. According to the statistic, the average life span of people in urban area is obviously shorter than that of people in rural area. Urban construction is ruthlessly ruining the planet we live by. The economy grows fast at the cost of ecological disruption. The human existence is facing serious challenge at this very moment. Silent Spring published in 1962 awakened people's consciousness towards environmental protection like a crash of thunder. From the first UN Conference on the Human Environment and the appearance of the sustainable development concept in 1980 to the Kyoto Protocol cosigned by nations in 2005, we gradually find that the model of sustainable development influences the progress and construction in all fields and also becomes the direction and main stream of the development in these fields.In Landscape Architecture, ecological landscape design plays an important role in urban landscape design. Cities are the vehicles of the development of human society. Landscape reflects the complete picture of the city and its quality relates to the life quality of people in urban area. The landscape model of sustainable development enables people to make full use of the natural resources and minimizes the damage to nature. Therefore, it is important for the development of the city to utilize the sustainable design and to realize its full value in the rapid growing space. Nowadays, the serious pollution and ecological disruption brought by fast-paced economic growth create unprecedented vast application space.The connotation in landscape science of"sustainable"and"development"is to enable the symbiotic elements in the environmental system to form a virtuous and symbiotic circle through the power of nature itself when the system recovers after being interfered and damaged. The sustainable urban landscape is made up of development element, function element and material element. These elements act an important part in real landscape design and determine the thoughts and concepts of landscape design. These elements also penetrate the whole design process and influence the design effect and using effect of the urban landscape. Thus it can be seen that the necessary elements in sustainable urban landscape are the planning focus of a successful landscape design. The combined function of all the necessary elements will finally determine the sustainable development of the urban landscape. The thesis sets the background of sustainable development and studies the necessary elements in sustainable urban landscape.