泛亚高铁建设对中国西南边疆地区与中南半岛空间联系的影响

The influence of Pan-Asia High-speed Railway construction on spatial relation between Southwest China's frontier area and Indo-China Peninsula

泛亚高铁建设是中国"走出去"战略的重要手段,能够助推中国与中南半岛及东南亚地区的跨境合作。从可达性变化和空间格局演变两方面,探讨了泛亚高铁建设对中国西南(陆域)边疆地区与中南半岛空间联系的影响。结果表明:高铁建设带来可达性在全局和局域层面显著的时空收敛,同时也在一定程度上降低了区域内部的相对差异情况,使各区域享受交通的便捷程度更趋均衡;对区内国土面积、人口与GDP等的服务水平提升并呈现国别分异的层次结构特征;凸显高铁过境市州尤其是昆明的区位优势,以及高铁中线建设对区域一体化的推动作用;强化了中国西南边疆尤其是过境市州与中南半岛的空间联系强度,并形成昆明(曲靖)—曼谷,昆明(曲靖)—河内围合的"^"型主导联系格局。

As an important part of China's 'Going Global' strategy, the construction of 'PanAsia High-speed Railways' can enhance cross-border cooperation not only between China and Indo- China Peninsula, but also between China and Southeast Asia. Based on aspects of accessibility changes and spatial pattern evolution, this paper explores the influence on spatial relation between border areas of Southwest China and Indo- China Peninsula, which has been brought up by the construction of Pan-Asia High-speed Railways. The results indicate that the construction of Pan-Asia High-speed Railways has generated time-space astringency effect of accessibility both on global and local levels, reduces relative disparity inside the study area to a certain extent, and brings more balance on the degree of transportation convenience along the trunk railways in the study area. It promotes the enhancement of population and GDP service level in the whole region as well, and will lead to a variability from country to country.Relatively speaking, countries with a large population or great economic powers in the research area can have easy access to to the high-speed railways. What's more, the construction of PanAsia High- speed Railways can not only highlight the location advantages of the cities and autonomous prefectures along the railway line, like Kunming city, but also promote regional integration along the mid-route of the line. As a traffic point of connection, Kunming connects China's western border area and Indo- China Peninsula, links China's interior heartland and Southeast Asia and even takes up the position as a bridgehead of China's opening up to the Southeast Asia. Pan-Asia High-speed Railways even strengthen the intensity of spatial relation between the cities and autonomous prefectures in the border area of Southwest China and countries or capital cities in Indo- China Peninsula, especially the ones along the high- speed railways, and it shapes a '^' style pattern of spatial relation, which is an enclosure of Kunming(Qujing)- Bangkok and Kunming(Qujing)- Hanoi. In the end, some targeted suggestions for policy making are provided based on the main research conclusions.