摘要
本文利用美国生态学家H.T.Odum的能值分析理论和方法对南充生态经济系统的能量流动进行定量的分析。简要介绍了南充自然、社会、经济等方面的概况,结合南充的基础数据,应用能值理论计算出1994~2003年南充生态经济系统的能值评估表及能值指标趋势分析。在计算南充的人均能值使用量(EPC),电力占有率(FEE),环境负荷率(ELR),能值投入率(EIR),净能值产出率(EYR),能值货币比率(EDR),能值使用强度(ED),人口承载力(PCC),废物能值比率(WER),能值自给率(ES),可持续发展指数(ESI)基础上,运用南充的各项指标与其它国家和地区进行了横向和纵向的分析。结果表明:南充的生态经济系统是比较脆弱的,从发展过程来看还没有进入工业积累阶段,仍然属于农业大市。所以加强第二、第三产业的发展是南充经济发展的重要出路。
Based on the concept and method of energy analysis created by American famous ecologist H. T. Odum, this paper analyzes the eco-economic system of Nanchong from 1994 to 2003. The natural, social, and economical situations of Nanchong city are briefly introduced.Based on the calculation of the energy per capita （EPC）, fraction of energy used from electricity （FEE）, environmental loading ratio （ELR）, energy investment ratio （EIR）, energy yield ratio （EYR）, energy dollar ratio （EDR）, energy density （ED）, population carrying capacity （PCC）, ratio of waste to energy use （WER）, energy selfsufficiency （ES）,energy-based sustainability index （ESI） and so on, all the energy-related indexes of Nanchong are comprehensively analyzed compared to the other countries＇and regions＇ .The result shows that the eco^eoonomic system of the city is fragile. The city has not entered the stage of industrial accumulation. It is just a city of agriculture. The main way of its economic development should be through strengthening the secondary industry and tertiary industry.
出处
《四川环境》
2006年第2期57-62,82,共7页
Sichuan Environment
关键词
南充
生态经济系统
能值分析
可持续发展
Nanchongl eco-economic system
energy analysis
sustainable development
