武汉城市圈制造业行业专业化实证分析

Empirical Studies of Manufacturing Industrial Specialization in Wuhan Metropolitan

本文运用2000－2007年间的统计数据,采用SP指数并结合集中度指标,对武汉城市圈制造业行业专业化程度进行了详细测度。研究结果表明：城市圈制造业整体上趋于集中,而从考察的19个行业看,趋于集中和分散的行业数大体相当;进一步分析行业类型发现,空间趋于分散的大多为资源性和低技术行业,而绝大多数中高技术行业集聚明显。同时,从2007年的横截面SP指数和集中度值都可以发现,中高技术行业在空间上更为集中,而资源性和低技术行业则相对分散;考察行业在各城市的分布可以发现,整体上武汉、黄石、黄冈和孝感4市行业集聚较为明显,并且从行业的技术含量分类看,城市圈形成了以武汉等4市为＂中心＂,另外5市为＂外围＂的制造业＂中心-外围＂空间结构。

the article made a detailed measure of the specialization degree of the manufacturing industries in Wuhan Metropolitan with SP Index and Concentration Index. The results showed that both indexes proved generally centralizing trend of the manufacturing industry in Wuhan Metropolitan. Viewed by sectors, half of the 19 sectors were centralized, with the other half being decentralized, while, it clearly showed the spatially decentralized sectors were mostly resource-based and low-tech and the centralized ones consisted majorly of the high-tech ones, after a close view. The Sectional SP Index and Concentration Index of 2007 also proved this. Viewed by cities, Wuhan, Huangshi, Huanggang and Xiaogan generally had a more obvious trend of centralizing, forming a Center-Periphery Structure with the 4 cities as the Center and other 5 cities as Periphery.