Material Flow Analysis of Nations Based on Sustainable Development

By means of material flow analysis, this paper studies relative indexes of material input output of Chinese economic system in 1995-2002, and discovers that: Total material requirement and total material output of economic system are tremendous, ecology pressure of environment can not be relieved in short terms; Material requirement per capital is not high, and material productivity is rather low;Environment Kuznets curve appears reversed "U", the highest top emerges 700$ per capital, then goes the decline passage; Technique level has the key effects on total material requirement; Huge hidden flows of the output energy-coal is the main reason to cause ecology trade deficit.