基于能值分析的山西省生态经济系统可持续发展评价

Evaluation of Sustainable Development of Eco-economic System in Shanxi Province Based on Emergy Analysis

本文采用奥多姆(Odum H T)的能值分析方法,针对山西省2000年~2016年生态经济系统的主要能值投入与产出、运行效率以及环境负荷作了系统分析,并通过构造生态经济系统能值评估体系分析区域实体经济发展的整体趋势及可持续性.结果表明:山西省经济发展状况仍然十分滞后,主要由于工业与煤炭资源息息相关,产业单一,抗风险能力差.从2000年到2016年,可更新资源能值量基本保持在3.56E+22sej,无显著变化差异;人均能值量从1.94E+15sej提升到2.66E+15sej;环境负荷率(ELR)从0.77提升到1.74;生态经济系统能值投资率从0.59提升到1.07.能值可持续指标从3.44降到1.10,可持续性有所改善.

Based on ODUM's emergy analysis,this paper built emergy evaluation index system to systematically analyze the input emergy and output emergy,ecological efficiency and environment capability of the ecological economy system in Shanxi province from 2000 to 2016.Finally,reveal the overall change trend of the social economic system and its sustainability.The results show that the economy development till lags behind developed area,mainly because its industry highly rely on increasing the supply of resources,with poor anti-risk ability due to single structure.From 2000 to 2016,the amount of renewable energy resources is basically maintained at 3.56E+22sej,with no significant difference;environmental loading ratio(ELR)upgrade from 0.77 to 1.74;ecological and economic system to value the investment rate(EIR)from 0.59 to upgrade 1.07.The emergy sustainability index(ESI)dropped from 3.44 to 1.10,and the sustainability has been improved to a certain extent.