莫干山风景区生态经济系统能值分析及可持续性评价

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

应用能值分析理论和方法,选择和创建能值指标评价体系,从自然和经济生态观角度对浙江莫干山风景区生态系统进行研究。通过一系列能值指标,定量分析了系统的基本生态流。结果表明,莫干山风景区2008年能值应用总量为9.90×1018J,输入能值9.14×1018J,输出能值7.58×1017J,经济收入和反馈分别为6.15×1018J和3.75×1018J,净经济效益率为53.22%,生态产出率29.27,环境负载率为12.01,可持续发展能力能值指标为0.84。研究证明,莫干山风景区开发历史较长,基础能值积累较多,长期保持适度的经济反馈,改善了生态环境,提高了经济效益,可持续发展能力较强,但环境负载率较高,旅游业对系统压力逐年加大。因此,今后要从扩大莫干山风景区地域范围,适度控制游客人数,创新旅游模式,实现多种能流有序流动入手,实现系统持续健康和谐发展。

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 Area＇s 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.