基于MFA的生态工业园区物质代谢研究方法探析

物质流分析(Material Flow Analysis,MFA)是国家尺度物质代谢研究的重要手段。首先对国内外不同地域尺度下MFA的研究现状进行了概述总结;在此基础上,从工业区内的企业及其所形成的工业共生网络(Industrial Symbiosis Networks,ISNs)物质核算入手,针对如何在生态工业园区(Eco-Industrial Parks,EIPs)尺度开展物质代谢研究进行了详细论述,并通过引入部门间实物型投入产出表(Physical Input-Output Table,PIOT)对该尺度MFA的核算方法进行了改进,最终构建了EIPs-MFA模型及指标体系。以期为生态工业园区实践中的规划与管理提供方法指导。

The exploration of material metabolism based on MFA for Eco-Industrial Parks

Material flow analysis (MFA) is an important method for studying material metabolisms at regional and national scales. This article generalizes the status quo of MFA research in different scales. Next, a physical Input-Output Table (PIOT) is introduced as a mean of improving the analytical frameworks and accounting methods of MFA. The PIOT forms a basis framework on which all enterprises and industrial symbiosis networks in the industrial area are assessed. Finally, details concerning the study of metabolisms in Eco-Industrial Parks (EIPs) at an industrial ecosystem-scale are presented, and a EIPs-MFA model is constructed. This article concludes (1) Compared with MFA at national and regional scales, the purpose and method of EIPs-MFA are different, the object for the former studies is the socio-economic system, while for the latter it is the production system of the enterprise; (2)The former generally takes up a top-down approach, the latter bottom-up; (3)The former often treats the studied system as a black box, while the latter use a gray box; (4)Considering the particular objections of EIPs, which puts more emphasis on the metabolism of solid waste, water, and other special material flows in the park, EIPs-MFA should select these indicators above as the vital components to account and evaluate separately; (5)Last but not least, the aim of EIPs-MFA is to discern the characteristics of material flows inside and between the enterprises, and to identify and evaluate opportunities and potentials for increasing the material use efficiency through material re-use and recycling strategies.