选择中国西部的9省区和18个相关国家，基于两个不同的空间尺度（省区尺度和国家尺度）构建“丝绸之路经济带”贸易空间关联网络，采用1997年、2002年、2007年、2012年4个时间断面的贸易数据，利用社会网络分析方法，绘制可视化网络结构拓扑图，并对关联网络的拓扑学特征进行定量分析。结果表明：省区尺度的贸易网络密度呈现先增后减的趋势，而国家尺度的贸易网络密度则保持稳定增加；四川、重庆处于省区尺度贸易网络中心地位，陕西、宁夏、青海则处于边缘地位，新疆、甘肃逐渐向边缘移动，云南、广西则逐渐向中心移动；欧洲国家大都处于国家尺度贸易网络中心地位，而中亚五国处于边缘地位，中国的地位跃升趋势最为明显；省区尺度贸易网络内存在5个凝聚子群，国家尺度贸易网络内存在9个凝聚子群；省区尺度网络的贸易联系基本平衡，而国家尺度网络的贸易联系具有明显的核心边缘结构。应加强区域合作，以创新驱动发展，优化网络组团结构，充分发挥网络核心的辐射作用，推动区域经济一体化进程，实现“经济带”区域共同发展。%Based on the trade data between countries and provinces of the year 1997, 2002, 2007, 2012, from two different spatial scales ( provincial scale and national scale ) research perspective, this paper investigates 9 provinces of China and 18 countries along the Silk Road Economic Belt, constructs trade ties networks by social network analysis and draws its visual topological graph and analyzes the topological characteristics quantitatively. The results demonstrate that network density of the provincial scale increases at first and then decreases, for national scale which keeps steady growth. Sichuan and Chongqing locate in the centre of the network, while Shannxi, Ningxia and Qinghai are on the periphery of the network; Xinjiang and Gansu gradually move toward the periphery, while Yunnan and Guangxi gradually move toward the centre; European countries mostly situate in the centre, while fives countries of central Asia are on the periphery, and the upward trend of China’ s position is the most obvious. In the network of provincial scale there are 5 cohesive subgroups and there are 9 in the network of national scale. The trade network relation of provincial scale is basically balance, while the trade network relation of national scale shows core⁃periphery structure. Regional cooperation should be enhanced with innovation⁃driven development and optimized network structure, and the radiation function of the network core should completely plays its role and the regional economy integration process should be accelerated to realize co⁃development of the economic belt regions.
展开▼
