| After the industrial revolution,the global economy developed rapidly and the society made rapid progress.However,people’s blind pursuit of rapid urban construction ignores the protection of resources and environment,resulting in environmental pollution,ecological deterioration,climate anomalies and other ecological and environmental problems,as well as traffic congestion,heat island effect,garbage siege and other urban diseases.In the 1970 s,based on the research of ecological theory,eco-city theory was formally put forward and became an important means to alleviate the urban ecological crisis.At the same time,urban metabolism theory has also been applied to urban research.Urban metabolism theory studies urban ecological problems from a deeper level and from different perspectives,providing new ideas for people to study urban ecological problems.Based on the perspective of resource metabolism,based on the circulation theory,urban residential environment for the research object,the construction of urban ecological environment space and technology model,construction of city,district,city residential neighborhood,the neighborhood four scale ecological unit model,the study of city,district,neighborhood,the neighborhood four level of form associated with the metabolic model.This paper is divided into six chapters.The first chapter is the introduction,which mainly elaborates the research background and basis,research purpose,research significance and main content of the research,reviews and analyzes the current research situation of eco-city theory and practice,urban metabolism theory and practice,constructs the research framework,and lists the research methods.This paper is divided into six chapters.The first chapter is the introduction,which mainlyelaborates the research background and basis,research purpose,research significance and main content of the research,reviews and analyzes the current research situation of eco-city theory and practice,urban metabolism theory and practice,constructs the research framework,and lists the research methods.The second chapter analyzes the typical eco-city cases at home and abroad,and summarizes the spatial patterns of eco-city cases,such as scale and level,traffic organization,and development intensity.Ecological technology models such as rainwater utilization,sewage treatment,garbage recovery and utilization,wind power generation and solar photovoltaic power generation;Spatial form indexes,such as green area ratio,road network density,building density and volume ratio,and resource reuse indexes,such as rainwater utilization rate,sewage treatment,waste collection and treatment,were extracted.This paper explores the ecological integration mode of the current ecological city spatial form and its ecological appropriate technology,and provides a reference for the construction of the ecological unit model of urban human settlement suitable for the construction of ecological city in China.The third chapter focuses on urban ecological system,based on the relationship between urban ecological system and natural ecological system,based on the review of architecture "urban ecological system",based on this put forward the concept of "urban residential ecological unit",and the concept and connotation of urban habitat ecological unit,system and structure,level and factor carries on the preliminary discussion.The fourth chapter research metabolic mechanism of characteristics of urban habitat ecological unit,based on the theoretical basis of the existing urban metabolism mechanism,and relying on the appropriate ecological technology,the construction of urban ecological dwelling units,energy,nutrients,water circulation model of garbage,technical tool set to build infrastructure,and then,on the basis of the study in land per capita consumption and the per capita resource consumption for data basis,four levels of urban habitat ecological unit scale research and metabolic data for computing the amount.In addition,according to the sorted set of infrastructure technology tools,spatial correlation of appropriate technologies of urban human settlement ecological units is conducted,and a four-level spatial and technological correlation model is constructed.The fifth chapter based on the above research,experimental conditions are selected,and based on the research in this paper and its geographical and climatic conditions,an ecological city based on resource recycling and metabolism is designed,and the ecological technical facilities and spatial forms at four levels of the city,area,neighborhood and block are integrated and designed.The sixth Chapter is the research conclusion and prospect,which summarizes the research results of this paper,and puts forward the deficiencies and further prospects for the existing problems in this study. |