采用对应分析法,运用SPSS软件绘制基于2003—2012年我国东部沿海城市带9个城市群共81个城市的二、三产业的从业人员数据的点聚图,结合能够反映城市职能互补性的统计量指标——总惯量,直观地反映城市职能与城市间互补性并进行分析。结果显示:10年间,沿海城市带城市互补性程度横向纵向间均有较大差异。2012年较2003年,京津冀地区、长三角、珠三角、海峡西岸、厦漳泉城市群总惯性增加,城市互补性比率增加,城市互补性增强。与之相对的,山东半岛与辽东半岛、环渤海地区、北部湾地区城市总惯性减小,城市互补性比率降低,城市之间互补性减弱。总惯性增加最快的是我国东部沿海城市带发育程度最高的三大都市圈即长三角地区、京津冀、珠三角地区。针对9个区域10年互补性标准值划分出四种互补性演变模式。
In this paper, the correspondence analysis is used to gain some graphs and analysis a single statistic(this statistic is called total inertial which can reflect the complementarity of urban functions) which is based on the data about the second and third industry practitioners of 9 metropolitan regions of the coastal megalopolis of China including 81 cities from 2003 to 2012. The results showed that there are big differences between 9 metropolitan regions during 10 years. From 2003 to 2012, total inertia and complementarity increases in the Beijing-Tianjin-Hebei metropolitan region,the Yangzi River Delta metropolitan region, the Pearl River Delta metropolitan region, the West Side of the Straits metropolitan region and the Xia- Zhang- Quan metropolitan region. In contrast, total inertia and complementarity decreases in the Shandong peninsula metropolitan region, the East Liaoning peninsula metropolitan region, the Bohai metropolitan region and the bay of Ring Northern metropolitan region. The fastest growth rate of total inertia is three metropolitan regions located in coastal megalopolis of China, which are the most developed regions in China. They are the Beijing- Tianjin- Hebei metropolitan region, the Yangzi River Delta metropolitan region and the Pearl River Delta metropolitan region. Complementary evolution model is concluded using complementarity ratio of 9 metropolitan regions during 10 years.