物流分析模型在环境问题研究中的应用

当前经济研究中对环境问题越来越重视，已经有多种不同方法可以用来研究材料和物质流在经济中的运转，物流分析模型（SFA）就是其中一种。本文将SFA应用于一个单一的，假设的污染问题中，这样以实践的方式来评价模型的结果。结果显示，SFA模型能够发现潜在的或预料不到的物质流和排放物，并能发现在将来某一时候会引起经济和环境问题的积累。

The application of substance flow analysis in environment

The growing concern for environmental problems in the current economy has spurred the study of the way materials and substances flow through the economy, resulting in many different types of analysis, one of which is substance flow analysis. In this paper, we apply the model in a single, hypothetical example of a pollution problem for evaluation in a practical way. It appears that SFA enables one to spot hidden or unexpected flows and emissions, and to detect accumulation of stocks in the economy or the environment, which may cause problems at some future time.