Emergy analysis of ecological economic system and sustainability assessment of the Mount Mogan Scenic Area

Key words: 
• landscape ecology /
• emergy /
• emergy analysis /
• ecological economic system /
• sustainable development /
• Mount Mogan Scenic Area

Abstract: The emergy analysis theory and method were applied to choose and establish an evaluation system of emergy indexes which was used to study the Mount Mogan Scenic Areas ecological system from natural and economic ecology perspectives and quantitatively analyzed the basic ecological flow of the system by a series of emergy indexes. The results indicated that the emergy application sum of the Mount Mogan Scenic Area in 2008 was 9.90 1018 J；the input emergy was 9.14 1018 J；the output emergy was 7.58 1017 J；the economic income and the feedback were 6.15 1018 J and 3.75 1018 J respectively；the net economic profit ratio was 53.22 per cent；the ecological yield ratio was 29.27；the environmental loading ratio was 12.01；the emergy index of sustainable development ability was 0.84. The results indicated that the Mount Mogan Scenic Area had long development history and more accumulation of basic emergy. It maintained a long term proper economic feedback. The ecological environment had been improved and the economic benefits had been increased. It had more sustainable development ability. However，the environment loading ratio was comparatively high，and the pressure from the tourism was increasing annually. So it is suggested expanding the territorial scope of the Mount Mogan Scenic Area，controlling the number of tourists properly，innovating the mode of tourism，making multiemergy flow sequentially，then the system will accomplish sustainable，healthy and harmonious development.［Ch，1 fig. 2 tab. 16 ref.］