| In the course of fast urbanization, people have to face some serious problem, such as ecological environment being worse, the contradictions between town and country, the city expansion. Then how to make Urban Open Space healthy,safe,develop sustainablly becomes a question that we must consider.One important way to solve the problem is to build better Urban Green Open Space. How can the layout produce the best possible results? Some important requirements for the construction of Urban Green Open Space are: How to express the characteristics of the city's local conditions and social customs in the Urban Green Open Space structure and distribution? And it is necessary to put all kinds of natural element into the Urban Green Open Space to create the city characteristic which is able to stand the test of time. In addition ,the preservation of urban cultural and historic heritage is also as important for protecting the city image. And How should the Urban Green Open Space layout be structured to meet the preservation and use of historical and cultural heritage?In recent years, with the process of urbanization in Kaifeng, not only faces the same problem above, specially the land changing more and more fiercely, also affectes Urban Green Open Space changing. Under the background about "Zhengzhou and Kaifeng Integrated Developmenf"and "Central Henan Urban Agglomeration", Kaifeng has welcomed the unprecedented development opportunity. It is necessary use ecology principle to carry on Urban Green Open Space layout and guide the rational development of the Urban Space. Under this new circumstances, carring the research on the Urban Green Open Space layout has the prominent practical significance.The Layout optimization of Urban Green Open Space in Kaifeng are studied in this paper . In Urban Open foundation, the paper puts forward the concept of Urban Green Open Space, starts from the basic method and theory, then analyzes the present situation and carries on the appraisal in Kaifeng. Then combined with the history of Urban Green Open Space in Kaifeng,the paper analyzes and forecasts the layout pattern. According to the analysis of present situation,the evolution development trend and the question which exists in the evolution, the paper proposes the concrete optimization plan. The paper studies the development of Urban Green Open Space in Kaifeng from this angle of view, at the same time, it hopes to provide a kind of research way for the development of Urban Green Open Space in other similar region.This thesis arranges the main contents according to thinking way of bring forward problem, analysis problem, and solving problem. Main contents are as follows:First chapter, the development of Urban Green Open Space cannot be separated from the urban development background. But, behind urban high speed development in Kaifeng, the urban green open space is annexed day by day,natural ecology is destroyed day by day. Therefore the paper proposes how to construct the reasonable Urban Green Open Space Systems and improve environment quality, and analyses the significance from theory and practice, then proposes the main research method,the content and the technological route.Second chapter, in this part the paper introduces related concept ,related concept ,basis theory ,research method and summarized and explored present situation of the domestic and foreign research, which provides the model for this research.Third chapter, based on research area background , the paper analyses the present situation and the existing question from the garden, the water body, the green space.Fourth chapter, in this part the paper tries to analyze the development of Urban Green Open Space in Kaifeng, and summarizes the characteristic in different phases. In this foundation, the paper analyzes the evolved tendency and the existing questions,then proposes the overall pattern tentative plan of Urban Green Open Space in Kaifeng.Fifth chapter, in this part the paper first discusses four kinds patterns of the layout ,then according to analysising the present situation,the evolution,the layout optimization principle of Urban Green Open Space in Kaifeng, proposes the layout construction from whole and various essential factors (garden, water body, green space).Sixth chapter, in this part, the author sums up central content, the innovation and shortcoming of this thesis, and hopes to per fect them in the days to come.The paper draws following conclusion:(1)clear about the concept and the textural classification of Urban Green Open Space.(2)the paper analyses the existing questions of Urban Green Open Space in research area, such as quantity not many, distributed uneven, unreasonable structure and so on.(3)According to future trend of the Urban Green Open Space development in Kaifeng, the paper has induced four kinds of typical pattern, and establishs tree network model of the Urban Green Open Space layout, which promotes the development of the overall pattern. |