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A hybrid material flow analysis for quantifying multilevel anthropogenic resources
Author(s) -
Cheng KuangLy,
Hsu ShuChien,
Hung Cathy C. W.,
Chen PiCheng,
Ma Hwongwen
Publication year - 2019
Publication title -
journal of industrial ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.377
H-Index - 102
eISSN - 1530-9290
pISSN - 1088-1980
DOI - 10.1111/jiec.12940
Subject(s) - material flow analysis , material balance , stock (firearms) , macro , computer science , top down and bottom up design , industrial ecology , environmental economics , material flow , econometrics , environmental science , operations research , economics , mathematics , process engineering , engineering , sustainability , ecology , biology , mechanical engineering , software engineering , programming language , waste management
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.