我国城市系统的形成和演进机制

FORMING AND EVOLVING MECHANISM ON URBAN SYSTEM IN CHINA

我国城市系统的演进可归纳为萌芽与形成、低级均衡和合理不均衡三个阶段。形成和演进动力在于人类活动与产业及其空间实体的相互作用 ,其核心要素是行政等级城市网络、经济发展和市场联系与交通设施。文章指出城市系统合理演进应采取“组织与自组织”的战略 ,提出我国未来城市发展阶段 (扩散均衡阶段和有序网络化阶段 )及城市系统特征 :中心城市网络体系的形成 ;城市职能的综合性与分异性 ;城市集聚区的形成和相对均匀分布。

The evolution of urban system can be reduced to three phases, chaos and forming,lower balance, reasonable unbalance. The evolving impetus of urban system lies in the interaction between human activity and industries and their spatial entity. Namely, urban network, which has administrative degree, is the forming origin and base of urban system; economic development and marketing connection is forming and developing foundation; communication network speed the process. This paper point out the strategy of organization and self—organization which can lead to the reasonable evolution of urban system. At last,the coming development phrase (spreading balance and interconnected order network phrase) and features are put forward:leading urban network system;the comprehension and separation of urban function;forming of urban concentrated zone and balanced distributing of urban system.