| Title |
A hybrid material flow analysis for quantifying multilevel anthropogenic resources |
| ID_Doc |
23441 |
| Authors |
Cheng, KL; Hsu, SC; Hung, CCW; Chen, PC; Ma, HW |
| Title |
A hybrid material flow analysis for quantifying multilevel anthropogenic resources |
| Year |
2019 |
| Published |
Journal Of Industrial Ecology, 23, 6 |
| Abstract |
This study develops a hybrid material flow analysis (HMFA) method to evaluate the annual additional quantity of material stock, known as net additions to stock (NAS) at both micro- and macro-levels through analyzing the fixed capital formation (FCF) and total supply in input-output tables (IOTs). HMFA turns NAS from a balance indicator in the top-down approach to an indicator with meaningful value in terms of urban ore evaluation. To verify the validity of HMFA, this study compares the developed HMFA with a top-down approach and a bottom-up approach through assessing the NAS of Taiwan and Germany. The quantity of NAS estimated by HMFA is considered as a more conservative upper bound than that by the top-down approach, while underestimation often occurs with a bottom-up approach. HMFA has been proven as an efficient and rational evaluation method which overcomes a key limitation in assessing micro-level material stock by a top-down approach, and solves the data demanding problem of the bottom-up approach for quantifying material stock. |
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