云南地级市经济空间集聚特征研究——基于“密度、距离、分割、依赖”的角度

Study on the Characteristics of Economic Spatial Agglomeration of Prefecture-level Cities in Yunnan Province:Based on the Perspective of Density,Distance,Division and Dependence

将空间依赖性(Dependence)引入世界银行提出的密度(Density)、距离(Distance)、分割(Division)的"3D"框架,形成"4D"分析结构。首先计算云南各地级市的3D综合得分,分析各地市经济地理变迁的密度、距离和整合特征。即云南多个城市存在"低密度、长距离、高分割"现象,且呈现以昆明为中心的集聚效应,距离昆明越近的地区3D状态表现越明显,离昆明越远的地区越接近0D状态。然后通过莫兰指数及其散点图绘制分析云南各地级市不同的集聚类型。发现云南各地市经济发展高值与高值地区相邻,距离昆明较远的地区低值与低值地区相邻,空间依赖性显著。最后提出与"4D"相适应的重塑云南地市经济地理的针对性建议,推动云南地级市经济的跨越式发展。

The writers introduce spatial dependence into the"3 D"framework proposed by the World Bank,including density,distance and division,to form a"4 D"analyzing structure.First,the paper calculates the 3 D comprehensive scores of the prefecture-level cities in Yunnan,and analyzes the density,distance and integration characteristics of the cities’economic and geographical changes.The analysis shows that the characteristics of"low density,long distance,high segmentation"can be found in many of the cities of Yunnan,and Kunming is the center of the agglomeration effect.The closer it is to Kunming,the more obvious the 3 D states of the area,while the farther it is away from Kunming,the closer to the states of 0 D.Then,the paper analyzes the different agglomeration types of prefecture-level cities in Yunnan by using the Moran’s index and its scattered plot.It is found that the prefecture-level cities in Yunnan with high economic values are adjacent to each other,while the cities with low economic values far away from Kunming are close to each other,indicating significant spatial dependence.Finally,suggestions to reconstruct the economic geography of Yunnan Province are put forward to promote its leap-forward development.