高铁影响下成渝城市群旅游流网络的变化特征

运用社会网络分析法和GIS空间分析法，对高铁影响下成渝城市群旅游流网络的变化进行深入分析。结果表明：高铁影响下成渝城市群旅游流空间联系日益增强，“H”字型空间发展骨架凸显。高铁的开通加强了重庆主城和成都之间的旅游流互动，行政壁垒现象明显；成渝城市群旅游流在空间上呈现出以重庆主城、成都为核心的“轴-辐”空间组织模式，高铁进一步强化了两大核心的空间辐射能力；成渝城市群旅游流空间存在较为明显的层次性，高铁沿线地区旅游流联系更为密切，高铁增强了高铁沿线与非沿线地区之间的旅游流联系；高铁影响下成渝城市群旅游流空间差异呈扩大态势，高铁沿线旅游资源禀赋较好地区在旅游流网络中的重要性不断提升。

Characteristic of tourist flow network in Chengdu-Chongqing urban agglomeration under the influence of high-speed railway

The impact of high-speed railway on tourism flow in urban agglomerations has not been fully addressed. Chengdu-Chongqing urban agglomeration has a high level of economic and social development, rich tourism resources, and is an important tourist market and tourist destination. The high-speed railway in Chengdu-Chongqing urban agglomeration starts late, but develops rapidly, which is conducive to a comprehensive study of the impact of high-speed railway on the tourism flow and its process in the urban agglomeration. With social network analysis and GIS spatial analysis, this paper deeply analyzed the change of tourist flow network in Chengdu-Chongqing urban agglomeration under the influence of high-speed railway. Study result shows that, the spatial connection of tourism flows in Chengdu-Chongqing urban agglomeration under the influence of high-speed railway is increasingly strengthened, and the “H” shaped spatial development framework is prominent. High-speed railway strengthens the interaction of tourist flow between Chongqing urban and Chengdu, but the cross-regional flows are generally less, and the administrative barriers are obvious. Tourist flow in Chengdu-Chongqing urban agglomeration presents a spatial organization pattern of “axial and radial” with Chongqing urban and Chengdu as the core. The opening of high-speed railway further strengthens the spatial radiation capacity of the two core city. The tourist flow space in Chengdu-Chongqing urban agglomeration has obvious layers, and the tourist flow links along the high-speed railway are closer. Under the influence of high-speed railway, the tourism flow connection between the areas along the high-speed railway and those not along the high-speed railway in Chengdu-Chongqing urban agglomeration increases from 26 to 46. The opening of the high-speed railway strengthens the tourist flow links between the high-speed railway and non-high-speed railway areas. The spatial difference of tourist flows in Chengdu-Chongqing urban agglomeration is expanding under the influence of high-speed railway. Some regions with good resource endowment along the high-speed railway are more important in the tourist flow network, its resource advantage will be highlighted and exerted. Finally, this study proposes the following suggestions: strengthen the agglomeration and diffusion ability of tourism flow of the two core nodes, and develop Dazu, Wanzhou, Mianyang, Leshan and other nodes into a tourism distribution center with regional influence. Construct H-shaped axis, reinforcing the radiation capacity of tourism flow to areas along the non-high-speed railway. Promote cross-regional linkage development and deepen tourism cooperation between Chengdu and Chongqing.