Study On Sustainable Development Of Urban Form In Chengdu Based On Ecological Criteria

Nowadays, in the rapid urbanization development, the city development is confronted with ecological crisis. Chengdu, a historical and cultural city, the contradiction between urban form development and ecological environment is becoming increasingly acute and the urban ecological regulatory function tends to be vulnerable. In this context, research on sustainable development of urban form by taking Chengdu as an example is indubitably meaningful to the sustainable development of Sichuan province and even the West China. Meanwhile it can also provides some references and ideas for the development of the modern plain urban form.Based on the relevant domestic and oversea research, from the dynamic view of urban form, theoretical frame and scientific evaluation system of the urban morphological analysis are trying to be established by comprehensive use of multidisciplinary theories of ecology, morphology, environmental science, humanistic sociology, economics, landscape architecture and systematics and varies methodology, such as the method of comparative analysis, metric method, inductive method, the hypothetical-deductive method and the three-dimensional space virtual method.This paper systematically summarizes the concept and characteristics of urban form and systematically analyzes the ecological process of the evolution of Chengdu urban form and its evolution pattern and dynamic mechanism based on the natural and social environment. Then, a reasonable selection of urban form patterns of Chengdu is explored by using different measuring methods to calculate the capacity of Chengdu urban form and constraints to spatial development, grasp the dynamic expansion trend of space and through comparative study of several development mode of typical forms. In addition, the system of urban sustainability evaluation index is trying to be preliminarily established. The ecological sustainable development aims is determined by making a comprehensive evaluation of the capability of sustainable development of urban form of Chengdu through using the mathematical statistics methods to calculate and analyze.The paper summarizes the domestic and foreign advanced experience of urban development idea and practices. Meanwhile, the future landuse and population scale of Chengdu are supposed and deduced through comparative study In order to establish a scientific model of urban form development and use software modeling for virtual space. Thus, this paper explores the future development trend of urban form and put forward that Chengdu should develop an intensive green, multi-core axial and regional development of sustainable urban pattern. The planning strategy based on the ecological standards for the urban form sustainable development of Chengdu is proposed based on that Chengdu should establish an ecological garden city with a natural landscape feature of western Sichuan style.