Spatiotemporal evolution and spatial driving force of ecological efficiency in Huaihai Economic Zone
Taking 10 cities in Huaihai Economic Zone as the research areas,the super efficiency EBM model was used to measure the ecological efficiency of each city from 2010 to 2021 and analyze its spatiotemporal evolution characteristics,and the GTWR model was used to analyze the influencing factors of ecological efficiency in Huaihai Economic Zone.The results show that the overall ecological efficiency of Huaihai Economic Zone has gone through a process of decreasing in early stage and then increasing.Regionally,Northern Jiangsu＞Southern Shandong＞Northern Anhui＞Eastern Henan,the difference in ecological efficiency shows a trend of"increasing-decreasing-in-creasing",and the phenomenon of"polarization"between regions has intensified.The spatial distribution pattern of ecological efficiency in the zone has evolved from a distribution pattern of high in the middle and low on its both sides to a spatial pattern of high ecological efficiency on the Heze-Xuzhou-Suqian-Lianyungang line but low on its both sides.There is a certain spatial imbalance in the ecological efficiency of the zone,but it is not significant.Interval differences have gradually become the main source of regional differences in ecological efficiency in Huaihai Economic Zone,with higher internal differences in the northern Anhui and southern Shandong regions than in the northern Jiangsu region.Economic,administrative,technological and other factors jointly affect the changes in urban ecologi-cal efficiency,the dominant driving factors are constantly changing in different periods,and the driving factors of urban ecological efficiency are gradually shifting towards economic quality and government support.
万方数据
