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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. |
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