区域双核结构模式的形成机理  

The Mechanism of the Model of Dual-nuclei Structure

作　　者：陆玉麒[1] 

机构地区：[1]南京师范大学地理科学学院,南京210097

出　　处：《地理学报》2002年第1期85-95,共11页Acta Geographica Sinica

基　　金：国家自然科学基金资助项目(40071037)

摘　　要：双核结构模式是指在某－区域中，由区域中心城市和港口城市及其连线所组成的一种空间结构现象。它广泛存在于中国沿海和沿江地区，以及其它国家和地区中。从机理上考察，它导源于港口城市与区域中心城市的宁间组合，由于兼顾了区域中心城市的居中性和港口城市的边缘性，从山可以实现区位上和功能上的互补。从形成类型看，可分为内源型和外生型２种类型的双核结构，中国和美国分别是其典型代表。对于后者，还衍生出由新旧首都构成的一种特殊的双核结构现象。双核结构的形成与流域有莫大的关系，据此可建立基于流域的双核结构形成的理想图式。流域自然条件、运输结构的改变，以及运输主通道走向等因素的综合作用，可使双核结构的形成区域由流域拓展至其它一般区域。The model of dual-nuclei spatial structure is a kind of phenomena of spatial structure that is composed of a regional central city, a port city and their relations at a certain region It is generally founded in the coastal belt, the region along the Yangtze River in China and other countries and regions in the world. From the view of the mechanism, the phenomena of dual-nuclei spatial structure comes from spatial compag of a regional central city and a port city. Because giving attention to centered nature of a regional central city and fringe nature of a port city, it can carry out complements in station and function. From the view of type of formation, the dual-nuclei spatial structure can be classified into two types, namely, endogenic pattern and ectogenetic pattern. China and America are their typical deputies. From the latter, it derives the special phenomena of dual-nuclei spatial structure that is made up of the new capital and the old. The formation of dual-nuclei spatial structure has something to do with the drainage basin. According to it, we can build up an ideal model about the formation of dual-nuclei spatial structure that is based upon the drainage area. The integrated action which includes the natural condition character of drainage area, the change of transport structure and the direction of mostly transport route can make the forming area of dual-nuclei spatial structure spread from the drainage area to other common area.

关 键 词：双核结构模式 形成机理 内源型双核结构 外生型双核结构 区域中心城市 港口城市 

分 类 号：F207[经济管理—国民经济]