长江经济带工业生态效率时空演变及影响因素分析

Spatio-temporal Evolution and Analysis of Influencing Factors of Industrial Ecological Efficiency and in Yangtze River Economic Belt

推动工业生态化、绿色化既是可持续发展的根本要求,也是实现经济高质量发展的关键所在。选取2006~2018年长江经济带110个城市相关数据,采用非期望SBM模型测算工业生态效率,并借助核密度分析方法和Tobit模型考察区域工业生态效率的时空特征与影响机理。结果表明:(1)研究期间,长江经济带工业生态效率先降低后提升,2006~2010年效率值呈下降趋势,2010~2018年呈上升趋势。长三角城市群效率值高于成渝城市群高于长江中游城市群。(2)研究区工业生态效率具有明显的空间特征,长三角地区是典型的高效率区域,低效率区实现了由上游向中游转移并形成“两头高,中间低”的空间分布特征。(3)经济发展水平、产业结构高级化、环境规制与科技研发水平对工业生态效率增长有显著推动作用,工业集聚显著抑制工业生态效率提升,外商直接投资仅对长三角城市群工业生态效率具有显著促进作用,对整体和其它地区未产生显著影响。

Promoting industrial ecological and green development is not only the fundamental requirement of sustainable development,but also the key to achieve high-quality economic development.Based on the data of 108 cities in the Yangtze River Economic Belt from 2006 to 2018,the undesirable SBM model was used to measure the industrial ecological efficiency,and the spatial and temporal characteristics and influence mechanism of regional industrial ecological efficiency were investigated by using the kernel density analysis method and Tobit model.The results show that:(1)During the study period,the industrial eco-efficiency of the Yangtze River Economic Zone decreased first and then increased.The efficiency value showed a downward trend from 2006 to 2010,and an upward trend from 2010 to 2018.The efficiency value of the Yangtze River Delta urban agglomeration was higher than that of the Chengdu-Chongqing urban agglomeration and higher than that of the long-term and middle-reach urban agglomeration.(2)The industrial ecological efficiency in the study area has obvious spatial characteristics.The Yangtze River Delta is a typical high-efficiency region,while the low-efficiency region has realized the transfer from the upstream to the middle reaches and formed the spatial distribution pattern of“high at both ends and low in the middle”.(3)Economic development level,industrial structure,environmental regulation and development level of science and technology have a great role on growth of industrial ecological efficiency,industrial agglomeration significantly inhibition efficiency of industrial ecology,foreign direct investment to the Yangtze river delta urban agglomeration only has a significant role in promoting industrial ecological efficiency,does not have a significant impact on the whole,and other areas.