Research On Urban Rooftop Greenhouses Based On The Concept Of Material Circulation

With the acceleration of my country’s urbanization process,the concentration of population in cities has accelerated,causing a series of problems such as environmental pollution and resource shortage.It has accelerated the consumption of urban resources and hindered the sustainable development of our country.At the same time,due to the lack of recycling of "waste",one-way loss of energy and nutrient resources and linear metabolism have been caused.The thesis focuses on the urban building roof circulation greenhouse from the micro level,and explores a method that can improve the current urban environment and metabolic problems from the perspective of the architectural discipline.Relying on the "Urban Metabolism Laboratory" project of Shandong Jianzhu University,the thesis connects the building with the material circulation and metabolism system,constructs a circulation system from three aspects of nutrients,water,and energy,and conducts data calculations.In order to quantify the experimental data,the actual metabolism of the "Urban Metabolism Laboratory" and the fifth floor of Jianyi Hall were taken as the research scope and used as the metabolic experimental unit for analysis and research.Through quantitative calculation and data comparison,the resource consumption in the building before and after the construction of the "Urban Metabolism Laboratory" is analyzed.The use of rooftop recycling greenhouses to build a closed material recycling system inside the building improves the current linear metabolism problems in the city.The thesis is mainly divided into five chapters.The main research content is: Chapter One is the introduction,including the topic background,research purpose and significance,research content,framework,methods and innovations,and a review of related literature.The second chapter is the analysis of the rooftop circulation greenhouse.By defining the concept,system composition and characteristics of the rooftop circulation greenhouse,it explains the feasibility and necessity of the rooftop circulation greenhouse,and summarizes the three aspects of the space system,planting system,and circulation system.Design and build general strategies,build a material recycling system,and conduct related case studies.The third chapter is about the research on the "Urban Metabolism Laboratory" project of Shandong Jianzhu University.It analyzes the construction process of the project and displays the construction results from the three aspects of space system,planting system and circulation system.The fourth chapter is the cyclical research of the "Urban Metabolism Laboratory" of Shandong Jianzhu University,combined with the relevant theories of building roof greenhouse agriculture,and quantitative calculations from the three aspects of food,moisture and energy.Finally,Chapter 5 is about the summary and prospects of the thesis.It summarizes the research results of the thesis,and puts forward some shortcomings of the research and the prospects for future research directions.The thesis combines the knowledge content of architecture,ecology,agriculture and other disciplines,coordinating the spatial system,planting system,circulation system strategy,quantifying the calculation of related data of the circulation system,and improving the utilization efficiency of various resources,from theory and practice At the level,the research value of the rooftop recycling greenhouse is proposed,which can provide theoretical support and practical reference for the study of material recycling at the architectural level in my country.