Study on the regime of eco-efficiency in Guizhou Karst Area

To improve the eco-efficiency is an important point for the realization of regional sustainable development. In order to quantitatively understand the regime of the eco-efficiency in Guizhou karst area,the regime of the eco-efficiency is analyzed by the single ratio method based on eco-footprint model, and history data from 1978 to 2009 is used in the analysis. The results show that eco-efficiency increase in the research period from 288.249 yuan GDP/hm2 to 3 006.220 yuan GDP/hm2, and the average annual growth is 84.937 yuan GDP/hm2. But compared with the whole country, the eco-efficiency is always lower and the gap gets bigger and bigger, from 346.837 yuan GDP/hm2 in 1978 to 3242.609 yuan GD P/hm2 in 2009 and the average annual growth of the gap is 90.439 yuan GDP/hm2. On the above basis, some countermeasures to improve the eco-efficiency are put forward, fully exerting regional advantages; actively adjusting the energy structure; strengthening the recovery and comprehensive utilization of the “three wastes”; saving land and water resources; promoting industry ecologicalization and increasing economic benefit.