Emergy Analysis on Ecological Economic System in Liuzhou

The objective of this study was using methods of emergy theory to calculate the flow of emergy on eco-economic system in Liuzhou from 2004 to 2008, in order to analyse emergy relationship of ecological economic system including society, economy and ecological subsystems. The results showed the emergy self-sufficient ratio, the net emergy yield ratio decreased year by year, but the environmental loading ratio and population carrying capacity increased in recent years, and Emergy index for sustainable development decreased rapidly. This study could put forward countermeasures for sustainable development of Liuzhou ecological economic system.