The developing processes in developed countries have demonstrated that the economic growth and copper consumption were closely related,which can be vividly described by the "S" curve of resources consumption in the process of industrialization.Some formulas of the relationship between copper consumption and GDP are derived from IPAT equation,and the annual growth rate of GDP(g) and annual decreasing rate of copper consumption per unit GDP(t) are two key parameters influencing copper consumption.The indexes of... The developing processes in developed countries have demonstrated that the economic growth and copper consumption were closely related,which can be vividly described by the "S" curve of resources consumption in the process of industrialization.Some formulas of the relationship between copper consumption and GDP are derived from IPAT equation,and the annual growth rate of GDP(g) and annual decreasing rate of copper consumption per unit GDP(t) are two key parameters influencing copper consumption.The indexes of copper consumption,such as total copper consumption,copper consumption per unit GDP and copper consumption per person,and GDP including GDP per person for China and USA were calculated,and some curves reflecting the relationship between copper consumption and GDP were resulted.Based on these curves,the following results can be obtained.The variation of copper consumption per unit GDP in China didn't form obvious up or down trend from 1960 to 2004.But the copper consumption per unit GDP in USA decreased as a whole from 1941 to 2004,and the values in the year 1941 and 2003 were 17.80kg/10~4USD and 2.56kg/10~4USD respectively.That is to say,the GDP per unit copper consumption increased about seven times within these 62 years.On the different assumptions of annual decreasing rate of copper consumption per unit GDP,the relationships between economic growth and copper consumption in China were demonstrated,from which the increasing times of GDP per unit copper consumption in the following 25 years for China were estimated. |