武汉城市圈资源集聚能力的空间关联研究

提升武汉城市圈各城市间资源集聚能力的空间关联程度,对于实现该区域的协调发展具有重要意义。基于此,运用修正的引力模型,采用社会网络分析法对1995～2015年武汉城市圈资源集聚能力的空间关联进行分析。研究表明:(1)武汉城市圈资源集聚能力的空间关联特征显著,网络密度呈现倒"U"型,网络等级逐年下降,网络效率呈现"U"型;(2)武汉城市圈资源集聚能力在网络中呈现"中心-边缘"的特征,武汉市的点度中心度最高,在网络中属于中心城市,而其它城市属于边缘城市;(3)板块一(武汉、孝感、天门)属于"双向溢出"板块,板块二(潜江、咸宁)属于"净受益"板块,板块三(仙桃、黄冈)属于"净溢出"板块,板块四(黄石、鄂州)属于"经纪人"板块。鉴于此,从多途径构建资源集聚能力空间关联"通道"、增强中心城市辐射带动功能和推动城市分工协作等3个方面提出了提升武汉城市圈资源集聚能力空间关联程度的政策建议。

Spatial Correlation Analysis of the Resources Aggregating Ability in Wuhan Metropolitan Area

Improving the spatial correlation degree of Wuhan Metropolitan Area’s resources aggregating ability has great significance for realizing the coordinated development of the region.Based on this, this paper uses the modified gravity model and the social network analysis method to analyze the spatial correlation of the resources aggregating ability in Wuhan Metropolitan Area from 1995 to 2015, the study shows that: (1)The spatial correlation characteristics of resources aggregating ability in Wuhan Metropolitan Area are significant,with an inverted U-shape network density,a slow decreasing network gradation through the years and an U-shape network efficiency;(2)The resources aggregating ability in Wuhan Metropolitan Area presents the characteristics of “Center-Edge” in the Network,Wuhan has the highest degree of centrality, which belongs to the central city in the network, while the other cities belong to the edge city;(3)The first plate(Wuhan,Xiaogan,Tianmen) belongs to “bidirectional spillover” plate,the second plate(Qianjiang,Xianning) belongs to “net beneficial” plate,the third plate (Xiantao,Huanggang) belongs to “net spillover”,the fourth plate(Huangshi,Ezhou) belongs to “broker” plate. According to the above conclusions,we put forward three policy recommendations(multi-way constructs spatial correlation “channel” of resources aggregating ability,enhances radiant driving function of central city,promotes urban division of labor and cooperation) to improve the spatial correlation degree of the resources aggregating ability in Wuhan Metropolitan Area.