苏北城市体系规模结构实证研究

采用豪斯道夫（Hausdorff）分维模式，利用2003和2005年苏北各等级城市非农业人口、社会商品零售总额、国内生产总值、第一产业产值、第二产业产值、第三产业产值等6个指标对苏北城市体系的分形特征进行研究。结果表明，苏北城市体系的规模结构较为集中。除非农业人口外，经济区内各城市在第一产业、社会商品零售总额、国内生产总值（GDP）、第二产业产值、第三产业产值差距方面存在着下降的趋势。针对这一现状进行了分析，并提出了完善和优化苏北城市等级规模结构的对策建议。

Empirical Research on Scale Structure of Urban System in Northern Jiangsu

This article uses Hausdorff fractal mode to research on scale structure of urban system in Northern Jiangsu with the indexes of non-agricultural population, total retail sales of consumer goods, gross domestic product, primary industry value, secondary industry value, the tertiary industry value from 2003 to 2005.The result shows that the scale structure of urban system in Northern Jiangsu is centralized comparatively. Six indexes except for non-agricultural population have shown a descending tendency. According to it, this article finally proposes relevant countermeasures and suggestions to improve the structure of urban system in Northern Jiangsu.