Abstract:
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.