论京津冀城市经济区域的空间扩散运动

THE SPATIAL SPREAD OF THE BEIJING-TIANJIN-HEBEI URBAN ECONOMIC REGION

从理论上讲 ,在一个空间系统内 ,极核的位势增强必将引起空间扩散。扩散效应沿着一定的空间成长轴带向外部递延。在现代交通技术和运输条件不断改善的条件下 ,高速公路和铁路运输逐渐取代了传统的物流转移方式。由此引起的空间转移效率的提高改变了原有空间系统的地域劳动分工和生产组合方式 ,进而导致初始空间系统的扩散规模和扩散结构发生改变。在现代区域经济中 ,空间经济关联单元之间的生产要素传递速度加快 ,“即时生产”方式成为决定经济活动在特定的地域范围内进行空间组合的重要因素。同时 ,空间传递效率也将成为决定特定地域空间范围内的生产规模的重要因素。本文旨在通过对京津冀城市经济区域空间扩散的历史演变及现实形态的实证描述来阐释经济系统进行空间扩散的一般规律。

In terms of theory,the powerful core will give rise to spatial spread in a spatial system. The effect of spatial spread will transmit following by the particular spatial growth-axis. Both express highway and railway have substitute for the traditional material transport upon condition that the facilities and technology of transportation improve. The improvement of spatial efficiency has changed both regional labor-division and productive forms of the original spatial system. Go step further, it will change the scale and structure of the original spatial system. Within the modern economic region, the velocity and frequency of the productive element flow becomes faster among economy-correlated spatial units. The productive style of 'Just in time' become the important factor to bring about new spatial combination. Meanwhile, the efficiency of spatial transmit become another important factor to bring about new productive scale in original spatial system. The purpose of this paper is to interpret the general regularity of spatial economic movement through taking BeiJing-Tianjin-Hebei as example.