中文摘要：

对中原经济区城市职能结构特征和分类进行了研究.运用因子分析法提取了科技制造物流和文教社保城市综合因子、居民服务和餐饮零售业因子、租赁建筑房地产业因子、信息金融业因子和能源设施因子5个影响中原经济区城市职能的主因子,使用聚类分析方法将中原经济区城市职能划分为5个主类、9个亚类.分析发现,中原经济区城市体系职能结构表现为整体职能层次不高,城市职能结构趋同明显,应有的优势职能未能有效发挥等问题.在对中原经济区整体功能定位与城市分工宏观层面分析的基础上,提出了中原经济区城市职能优化的建议.

英文摘要：

The paper studied urban function structure and classification of Central Plain Economic Region.The paper firstly introduces the progress of studies about urban function,then the methods of minimum requirements,factor analysis and multivariate cluster are used to analyze the urban basic economic activities,main factors and cluster characteristics.The results show that the main factors of affecting the urban functions has 5,namely urban comprehensive factor,which includes technology,manufacturing,logistics,education and social insurance,resident services,retail industry factor,information-financial industry factor and energy-facilities factor;and there are five urban function classes and nine sub-classes in central plain economic region;and functional structure show the functions of the overall level is not high,the urban functional structure convergences obviously,advantage function is not reflected.Finally,based on the analysis of the macro level on function orientation of central plain economic region and urban division,the paper puts forward many optimization suggestions on urban function.