改革开放以来,经济全球化和快速城市化促进了中国城市外向型联系的发展,改变了中国城市对外联系的空间格局。越来越复杂化的城市空间分布和组织规律需要一个全新的、综合的网络视角来考察。航空运输是当前城市间相互联系的重要物质基础,体现了城市间的直接关系,是研究城市网络的合适工具。本文以中国城市对外的航空客运联系作为衡量城市关系的指标,借鉴社会网络分析中的2-模网络概念构建了中国城市对外联系网络,并对网络的结构特征和演化规律进行了分析。研究结果表明,中国城市对外联系网络存在北京-上海-广州的三中心结构。中心城市以外,西部城市上升势头迅猛,体现了网络多元化发展的趋势。此外,中国城市对外联系的主要对象逐渐从东南亚向东亚转移,并呈现出以首尔为核心的网络结构。同时,中国城市对外联系扩张以强化区域内部联系为主,洲际联系发展滞后。
The spatial evolution of the interaction between Chinese cities and foreign cities is accompanied by rapid urbanization and globalization since the start of the opening and reform era in 1978. A more complicated Chinese urban network still remains under-examined in empirical studies. Air connec-tion offers a notable aspect to reveal the changing connections between Chi-nese cities and foreign cities since air transportation is a basic carrier for urban interaction. This article focuses on the changing structure of Chinese transnational urban network and proposed a new analytic framework based on the concept of 2-mode social network. There are some significant findings. First, Beijing, Shanghai and Guangzhou are the three central cities of Chinese transnational urban network. Besides the central cities, western cities have achieved fast growth rate during the past decade. Second, Chinese cities are closely connected to the cities from surrounding areas such as Seoul and have relatively weak transcontinental connections.