榆林市能源化工基地经济增长对资源环境的影响

在利用能值和物质流方法构建经济价值和环境影响评价指标的基础上,分别从EKC曲线特征,生态效率及其"脱钩"三个层面解析了榆林市经济发展对资源环境的影响。结果显示,经济发展与资源环境负荷之间"倒U"形特征显著,EKC转折点将出现在2015年前,届时经济价值与资源环境压力将分别较2009年增加8.83和4.38倍;生态效率在11 a间提高了4.55倍,生态效率的提高建立在生态压力不断增大的基础上;榆林市脱钩现象以弱脱钩和扩张性复钩的交替为特征,经济发展的弱可持续特征明显,相比于废物排放,资源投入对生态压力的升高具有更加明显的推动作用。改变传统经济增长方式,发展循环经济,促使榆林市在满足全社会物质需求总量的同时,实现经济与人口、资源、环境相协调发展是今后榆林经济持续发展的必由之路。

Impacts of Economic Development of Energy Industry Base on Resource and Environment in Yulin City

Based on the indicators of economic value and environmental impact established by emergy and material flow method, the relationship between economic development and environmental quality was analyzed with the aspects of the features of environment Kuznets curve(EKC), eco-efficiency and the "decoupling". The results showed that:the characteristics of "inverted U" type was appearent between economic development and environmental quality, the turning point of EKC will occur before 2015, then the economic value and environmental impact will increase 8.83 and 4.38 times over 2009, respectively; Eco-efficiency increased 4.55 times in the last 11 years and is based on increasing ecological pressure; The decoupling phenomenon was characterized with alternative weak decoupling and expansion re-link and economic development was characterized with obvious weak sustainability, compared to waste discharge, resources input has a more significant role in promoting ecological pressure. Thus, it is the only ways for Yulin City to change traditional way of economic growth and develope circular economy to promote Yulin City to meet the whole social material needs, and at the same time, to achieve the coordinated development of economic development and population, resources, environment.