区域一体化背景下城市群产业生态效率及其时空跃迁特征

在区域一体化背景下，以江浙沪两省一市2009~2018年新材料产业面板数据为研究样本，基于DEA模型和空间自相关模型，分析该地区的城市群产业生态效率及其时空跃迁特征。研究结果表明，江苏省GDP总量与增速最快，新材料产业的集中程度较高且生态效率呈现快速上升趋势，生态效率以南部的苏州和无锡为中心向周围递减；浙江省生态效率缓慢上升，大致呈现由北向南递减的趋势；上海市则呈现下降趋势。江浙沪区域新材料产业整体呈现向苏南与浙北地区聚集的时空跃迁特征。行政支持、财政支持这两个驱动因素与新材料产业生态效率的灰色关联度呈现下降趋势，其余均呈现上升趋势。政府应结合城市群的生态效率发展特点与时空跃迁特征推进区域一体化建设，缩小城市之间的生态效率差异，实现区域协调发展。

Under the background of regional integration,the industrial ecological efficiency of urban agglomeration and its characteristics of spatial and temporal transition

Under the context of regional integration, this paper takes 2009-2018 new material industry panel data of Jiangsu, Zhejiang and Shanghai provinces and cities as research samples, and analyzes the industry of urban agglomerations in this region based on DEA model and spatial autocorrelation model Ecological efficiency and its temporal and spatial transition characteristics. The results show that the total GDP and growth rate of Jiangsu Province are the fastest, and the concentration of new material industry is higher. The ecological efficiency of new material industry in Jiangsu Province shows a rapid upward trend, with Suzhou and Wuxi in the South as the center, and decreases towards the surrounding area. The ecological efficiency of Zhejiang province rises slowly, generally showing a downward trend from north to south, while Shanghai shows a downward trend pure technical efficiency and industrial scale efficiency prove the accuracy of the ecological efficiency evaluation results. The gray correlation between administrative support and financial support and ecological efficiency of new material industry shows a downward trend, while the rest shows an upward trend. Relevant departments should promote the construction of regional integration in combination with the characteristics of ecological efficiency development and time-space transition of urban agglomerations, narrow the differences of ecological efficiency between cities, and realize the coordinated development of the region.