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《China Population Resources and Environment》 2007-01
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Study in Quantitative Evaluating of Circalar Economy

WANG Qi WANG Hui(College of Environmental Sciences,Peking University,Beijing 100871,China)  
It is necessary to build an evaluation indicator system to assess the recycling materials in the economic system when the strategy of circular economy is emphasised.Based on the characteristics of the material flow in the economic system,two material flow models are built.One of which is for an open system and the other is for a closed one.Then two circular indices(I1 I2) are designed to evaluate circular economy.At the end,a case study is carried out on the economic system in Japan.
【CateGory Index】: F062.2
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