全球智库信息集成服务系统(G2TT): Ecological network analysis of an urban metabolic system based on input-output tables: Model development and case study for Beijing.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1016/j.scitotenv.2013.08.047
	Ecological network analysis of an urban metabolic system based on input-output tables: Model development and case study for Beijing.
	Zhang Y; Zheng H; Fath BD; Liu H; Yang Z; Liu G; Su M
发表日期	2014
出处	Science of the Total Environment 468-69: 642-653
出版年	2014
语种	英语
摘要	If cities are considered as "superorganisms", then disorders of their metabolic processes cause something analogous to an "urban disease". It is therefore helpful to identify the causes of such disorders by analyzing the inner mechanisms that control urban metabolic processes. Combining input-output analysis with ecological network analysis lets researchers study the functional relationships and hierarchy of the urban metabolic processes, thereby providing direct support for the analysis of urban disease. In this paper, using Beijing as an example, we develop a model of an urban metabolic system that accounts for the intensity of the embodied ecological elements using monetary input-output tables from 1997, 2000, 2002, 2005, and 2007, and use this data to compile the corresponding physical input-output tables. This approach described the various flows of ecological elements through urban metabolic processes and let us build an ecological network model with 32 components. Then, using two methods from ecological network analysis (flow analysis and utility analysis), we quantitatively analyzed the physical input-output relationships among urban components, determined the ecological hierarchy of the components of the metabolic system, and determined the distribution of advantage-dominated and disadvantage-dominated relationships, thereby providing scientific support to guide restructuring of the urban metabolic system in an effort to prevent or cure urban "diseases".
主题	Advanced Systems Analysis (ASA)
关键词	Beijing Ecological network Physical input-output table Urban ecology Urban metabolism
URL	http://pure.iiasa.ac.at/id/eprint/11047/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/130139
推荐引用方式 GB/T 7714	Zhang Y,Zheng H,Fath BD,et al. Ecological network analysis of an urban metabolic system based on input-output tables: Model development and case study for Beijing.. 2014.