Population mobility network characteristics and its influencing factors under the influence of Typhoon Bebinca

IF 6.9 2区 工程技术 Q1 ENVIRONMENTAL SCIENCES
Yicheng Huang, Ying Lu
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引用次数: 0

Abstract

With the increasing frequency of typhoons, the stability and resilience of the inter-city population mobility network is facing serious challenges. However, existing studies have failed to comprehensively illuminate the dynamics in the regional network in general, especially the changes in network structure and drivers under disaster situations. Therefore, based on the PSR framework and the complex network model, this paper constructs an assessment model for the characteristics of the population mobility network in the Yangtze River Delta (YRD) region under the influence of Typhoon Bebinca, in order to analyze the impact of the typhoon on the network structure and the changes in its driving factors.
The study shows that, first, during the typhoon, the network size and density decreased, long-distance mobility decreased, and mobility was concentrated among neighboring cities, showing the characteristics of “small world”. Second, after the typhoon landfall, the population inflow to the central city dropped significantly. Then, network connectivity declines during the typhoon, but modularity increases. Finally, in terms of drivers, differences in wind, air quality, residents' economic conditions, and the level of pollution control between cities significantly and negatively affect the network.
In summary, this paper enriches the theoretical study of population mobility network in disaster situations, and provides scientific basis and policy recommendations for enhancing emergency management capabilities and optimizing post-disaster recovery strategies in the YRD region.
台风贝碧嘉影响下的人口流动网络特征及其影响因素
随着台风的频繁发生,城际人口流动网络的稳定性和弹性面临严峻挑战。然而,现有的研究未能全面阐明区域网络的总体动态,特别是灾害情况下网络结构和驱动因素的变化。因此,本文基于PSR框架和复杂网络模型,构建台风“贝碧嘉”影响下长三角地区人口流动网络特征评价模型,分析台风对网络结构的影响及其驱动因素的变化。研究表明:①台风期间,城市网络规模和密度下降,长距离流动性下降,流动性向邻近城市集中,呈现“小世界”特征;第二,台风登陆后,流入中心城市的人口明显下降。然后,台风期间网络连通性下降,但模块化增加。最后,在驱动因素方面,城市之间的风力、空气质量、居民经济状况和污染控制水平的差异对网络产生了显著的负面影响。综上所述,本文丰富了灾害情况下人口流动网络的理论研究,为提高长三角地区应急管理能力和优化灾后恢复战略提供了科学依据和政策建议。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Urban Climate
Urban Climate Social Sciences-Urban Studies
CiteScore
9.70
自引率
9.40%
发文量
286
期刊介绍: Urban Climate serves the scientific and decision making communities with the publication of research on theory, science and applications relevant to understanding urban climatic conditions and change in relation to their geography and to demographic, socioeconomic, institutional, technological and environmental dynamics and global change. Targeted towards both disciplinary and interdisciplinary audiences, this journal publishes original research papers, comprehensive review articles, book reviews, and short communications on topics including, but not limited to, the following: Urban meteorology and climate[...] Urban environmental pollution[...] Adaptation to global change[...] Urban economic and social issues[...] Research Approaches[...]
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