Study of the Evaluation and Planning of Urban Green Space Based on the Coupling Theory of Green Space and City Space

The coupling theory of city and green space is explained first, which illustrates the common phenomenon that how green space exists in the city space, and reveals the laws how they influence each other. The theory consists three important concept which are coupling model, coupling process and coupling function and on this basis the conceptual framework of the coupling of green space and city space is established. Secondly, based on the coupling theory, the thesis constructs the evaluation system of city green space—an evaluation system with the trinity of coupling model, process and function, and its indicator system is constituted by the three aspects of coupling space form model indicator, coupling space content model indicator, and coupling space relationship indicator. Thirdly, the paper puts forward the urban green space planning method based on the theory, which is realized mainly from the three aspects of the coupling of structural space elements, the coupling of framework space elements, and the coupling of functional space elements. Finally, through the case study of Hutuo River waterfront area plan, the paper illustrates how to put the evaluation system and plan method into practice.