兰州—西宁城市群工业污染集聚格局及其空间效应

The Spatial Characteristics and Spatial Effect of Industrial Pollution Agglomeration in Lanzhou-Xining Urban Agglomeration

采用空间分析技术和空间计量模型对2010—2017年兰州—西宁城市群工业污染集聚格局及其空间效应进行分析。结果表明:①工业污染集聚格局具有"中心高边缘低"和"北部高南部低"的空间分异特征,工业污染集聚高值区和低值区基本保持稳定,具有"路径依赖"特征。②工业污染集聚格局存在空间正相关性,工业污染集聚的热点区和次热点区主要集中在兰州市和西宁市所辖的工业核心县(区),冷点区和次冷点区主要集中在白银市、定西市、临夏州和海东市所辖的工业欠发达县(区)。③工业污染集聚存在空间溢出性,工业污染集聚与人口密度、经济水平、工业集聚、产业结构之间呈现正相关性,与技术水平之间呈现负相关性。④工业污染集聚不仅受本县(区)人口密度、经济水平、技术水平、工业集聚、产业结构等因素影响,还通过空间溢出效应受其相邻县(区)工业污染集聚及其影响因素冲击。研究认为,城市群内各县(区)应加强工业项目协调发展,促进污染联防共治,推动工业绿色转型发展。

The spatial characteristics and spatial effect of industrial pollution agglomeration in Lanzhou-Xining urban agglomeration were analyzed by spatial analyst technology and spatial econometric model from 2010 to 2017.The results show that:1)The agglomeration of industrial pollution has the characteristics of spatial differentiation of"high center and low edge"and"high north and low south".The high-value and low-value areas of industrial pollution agglomeration are basically stable,and it has characteristics of"path dependence".2)The spatial characteristics of industrial pollution agglomeration has significant positive spatial correlation.The hot spots and sub-hot spots of industrial pollution concentration are mainly concentrated in the industrial core counties under the jurisdiction of Lanzhou and Xining,while the cold spots and sub-cold spots are mainly concentrated in the underdeveloped industries counties under the jurisdiction of Baiyin,Dingxi,Linxia and Haidong.3)Industrial pollution agglomeration has the effect of spatial spillover.Industrial pollution agglomeration is positively correlated with population density,level of economic development,industrial agglomeration and industrial structure,and it is negatively correlated with technological level.4)Industrial pollution agglomeration is not only affected by its population density,level of economic development,technological level,industrial agglomeration and industrial structure,but also affected by the industrial pollution agglomeration pattern and its influencing factors in neighboring counties through spatial spillover effect.Our study suggests that all counties in Lanzhou-Xining urban agglomeration need to strengthen the coordination of industrial projects development,promote the joint prevention and control of pollution,and advance the industrial green transition.