Hefei Ecological Space Structure Optimization Research

With the accelerating pace of urbanization in our country,the city extended to periphery, the traditional urban space morphology change. It will inevitably produce damage to the surrounding natural environment in the process of space expansion. Protect human survival environment, at the same time guarantee the efficient operation of the city,that is a prominent problem in big city that in the rapid development. In view of the above problems, this paper choose the urban ecological spatial structure as the starting point for preliminary study of Hefei city.Urban ecological space is the space of urban ecosystem. Urban ecological space structure is that the internal elements constitute the overall frame structure according to certain organization pattern.It is the macroscopic organization of urban ecological space, to achieve the coordinated development between the construction of urban ecological space and city space, maintain the ecological balance, form a good ecological environment.Based on the urban ecological space structure as the research core, relate theory and practice, analysis its theoretical basis, summarize the elements of urban ecological space structure and the basic organization mode according to certain categories with typical cases. Then combined with the empirical research in Hefei, clarify the development and evolution of Hefei ecological space structure, analyzes its structure elements, the organization mode and development characteristics. This paper summarizes the planning, implementation and management experience of the domestic and foreign urban ecological space structure,tries to explore a scientific and reasonable optimization methods, finally put forward the optimization countermeasures of ecological space structure in Hefei.First, build the research framework, the paper expounds the research background, purpose and significance, define the scope of research, clarify the object of study and research the key problems, the emphasis is on the constituent elements and the paper summarizes the basic organization pattern. And then gives a brief introduction of related research, provide theoretical support for the study of the paper.Then, analysis the elements of urban ecological space structure, organization pattern and the characteristics of overall. Summary of its constituent elements, and it can be divided into 3 groups. At the same time, summarized the ecological space structure mode to four basic patterns is Green Heart,Green Ring, Green Wedge and Green Belt Model. In addition, by selecting the domestic and foreign some big cities for comparative analysis, the case of urban spatial structure research.Finally, this paper analysises the status quo of the ecological space elements in hefei, summarized the evolution of ecological space organization model, analyzed the ecological space and building space inlaid relationship, based on the analysis of problems arising from the evolution process and characteristics. From three aspects: regional, district and urban areas, put forward specific optimization strategy, and puts forward Suggestions on planning implementation and management.