山东省循环经济建设的生态效率测度

摘要

Eco-efficiency is considered to be an effective tool of implementing the target of sustainable development and estimating developmental level of circular economy at different scales.Based on researches on regional eco-efficiency indices at home and abroad,an eco-efficiency evaluation index system was established for the construction of circular economy in Shandong Province,and used to evaluate the eco-efficiency of the province.Further more,re-coupling and/or decoupling of economic development with environmental pressure was discussed.Results show that though GDP in Shandong was rising rapidly with an annual growth rate reaching 13.08％,a declining trend with total water consumption and discharge of SO2 and COD was observed during the period of 2000-2010.The eco-efficiencies of the various natural input factors,as a whole,were steadily increasing,especially with discharge of COD,emission of SO2 and water consumption,of which the annual eco-efficiency growth rate reached 18.59％,14.85％ and 14.13％,respectively.All the three indices were in a strong decoupling state,while the rest remained in a weak decoupling state.Generally speaking,the contradiction between economic growth and environmental protection has been somewhat dulled,but the pressure of the large volumes of energy input leading to higher carbon emission is still very high.%构建山东省循环经济建设的生态效率评价指标体系,对山东省的生态效率进行测度,并探讨经济发展与环境压力的脱钩/复钩关系.结果表明,2000-2010年,山东省GDP呈快速增长趋势,年均增长率达13.08％,各自然输入要素中用水总量、SO2和COD排放量呈下降趋势.各类自然输入要素的生态效率总体呈逐步提高趋势,其中COD排放、SO2排放和用水总量的生态效率年均增长率分别达18.59％、14.85％和14.13％,这3个指标处于强脱钩状态,其他指标均处于弱脱钩状态.总体而言,经济增长与环境保护的矛盾有所缓解,但能源的大量投入导致碳排放压力仍较大.