A Product‐Level Approach to Historical Material Flow Analysis
A Product‐Level Approach to Historical Material Flow Analysis
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DOI：
10.1111/j.1530-9290.2008.00070.x
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发表时间：
2008-10
影响因子：
5.9
通讯作者：
E. Harper
中科院分区：
文献类型：
--
作者：
E. Harper
Studies of material cycles, which have a solid history in biogeochemistry, include characterization of technological materials cycles that quantify the way in which materials move through the economy and environment of a region. One of the most important aspects of historical technological materials cycles is determining how much material goes into various uses over time and modeling its lifetime in each use. A material flow analysis methodology is presented by which a historical (i.e., 1975 to 2000) study of tungsten use in the United States was constructed. The approach utilized in this study is twofold: the traditional approach by which material going into end‐use sectors is approximated (the “end‐use sector model”), and a second approach by which end‐use products are specifically addressed (the “finished product model”). By virtue of the latter method, a detailed historical account of a material's end uses was developed. This study shows that (1) both models present a detailed treatment of trade of finished products over time for a variety of highly disaggregated products, (2) the end‐use sector model provides a method to combine quantitative and qualitative data about products in various sectors to estimate domestic production for a metal about which little is known in terms of its end uses, and (3) the finished product model produces detailed estimates of domestic production for a large number of highly disaggregated products.
