辽宁省循环经济发展水平的能值评估

Emergy evaluations on development level of recycle economy in Liaoning Province

运用能值分析方法,从能值流量、能值经济、生态环境、综合指数4个方面评价了辽宁省循环经济发展状况。结果表明:辽宁经济发展水平较高,通过采取推行清洁生产,构建工业生态产业链和循环网络,开展物流、能流的梯级利用和城市污水处理、中水回用以及资源综合利用等措施,降低了万元GDP耗能、万元GDP废水排放、万元GDP废固排放,但经济快速增长主要是大量消耗了不可更新资源,系统可持续发展的能力在不断下降。增加输入能值利用效率,加强保护和开发可更新资源的能力,合理利用不可更新资源,逐步提升循环利用水平,是全面提高辽宁省可持续发展能力的关键。

By the method of emergy analysis, the development level of recycle economy in Liaoning Province was evaluated from the aspects of emergy flux, emergy economy, ecological environment, and comprehensive index. The results showed that the development of economy in Liaoning Province was on a relatively high level. With the progress in practicing clean production, constructing ecological industry chain and recycle network, and implementing cascade use of material/energy flow, reuse of waste water, and comprehensive utilization of resources, etc. , the energy consumption per ten thousand GDP, wastewater discharge per ten thousand GDP, and solid waste discharge per ten thousand GDP were all reduced. However, the fast growth of economy was mostly supported by the consumption of a great lot of un-renewable resources, and the ability of system sustainable development was descending. To have an overall improvement in the development sustainability in Liaoning Province, great efforts should be made on increasing the emergy use efficiency, enhancing the capability of conserving and exploiting renewable resources, reasonably utilizing un-renewable resources, and upgrading the recycle use level.