物质足迹研究综述

A Review of Researches on Material Footprint

物质足迹(material footprint,MF)是足迹家族中重要的一员,为满足一个经济体最终需求所使用的采掘的原材料总量,是对原材料自然资源进行再分配的度量,可以作为表征资源消耗和环境压力的综合指标。经济系统物质流方法是物质足迹核算的基础,中国物质流核算的研究较多,但是物质足迹的研究还很少。基于国内技术假设的投入产出模型(domestic technology-based assumption of I/O model,DTAIO)、混合的生命周期清单投入产出模型(mixed life-cycle inventory I/O model,LCI-IO)、多区域投入产出模型(multi-regional input-output model,MRIO)是利用投入产出模型核算物质足迹的主要方法,其中利用多区域投入产出模型核算物质足迹是比较有效的方法。物质足迹研究主要集中于以国家为区域核算单位,基于更小地区,特别是中国区域物质足迹的核算研究很少。随着中国多区域投入产出表的建立,中国区域物质足迹研究成为可能。

As a member of the footprint family,material footprint( MF) signifies the total of raw materials excavated and used to satisfy the need of an economic entity and is used as a measurement in reallocation of natural resources of the raw material and an integrated index of resource consumption and environment pressure. The economic system material flow method is the basis for calculation of material footprint. Although quite a volume of researches have been reported on calculation of material flow in China,little is available in the literature about material footprint. The domestic technology-based assumption of I/O model( DTAIO),mixed life-cycle inventory I/O model( LCI-IO) and multi-regional input-output model( MRIO) are the I/O-based methods commonly used in budgeting material footprint,among which,the last one is relatively more effective. The researches on material footprint are focused mainly on using a nation as the unit for regional calculation,and researches using state or province as the unit are rarely reported,let alone researches on budgeting of regional material footprint in China. Now the multi-regional I/O inventories are being established,making it feasible to do researches on regional material footprint in China.