TY - Jour A2 - Pan，Jing-Hu Au - Lu，Jiayi Au - Sun，Dongqi Py - 2021Da - 2021/06/09 - 2021/06/09 - 2021/06/09 - 2021/06/09 - 2021/06/2021-2021/06/09 - 1978 - 2019年城市网络的复杂性：企业联系观点SP - 9931985 VL - 2021 AB - 随着全球化和信息化的发展，城市之间的关系变得更加越来越近，城市研究中的“网络”范例正在受到关注。要在长期序列中检查中国的城市网络演变，我们使用基于流动的数据来衡量1978年至2019年的企业联系。我们调查了中国城市网络的时空演变和复杂性特征，并达到了以下结论。（1）中国的城市企业联系被不断加强。城市网络的规模和密度迅速增加。虽然节点城市的重要性和影响的分布显着不平衡，但随着时间的推移，它的程度已经减少。（2）自1978年以来，网络密度显着提高，逐渐形成单眼（北京）径向模式。从二十一世纪初开始，核心节点（例如，上海）的地位逐渐变得突出。最后，2019年四个顶点突出，形成稳定的金刚石结构。企业的空间连接流量构成了北京作为中心的核心网络，具有由子节点形成的中继线的骨架网络，以及覆盖各种外围区域的区域网络。 (3) China’s urban networks were typically small-scale and scale-free. However, the scale-free characteristics were weakened after 2010. The overall scale gap of intercity enterprise linkages gradually narrowed, and the structure of urban networks became optimized. Meanwhile, the urban networks were heterogeneous. There were more cities with headquarter-branches and active investment behaviors, which had strong influence and control over networks, playing their functions of “broker” and “transfer.” SN - 1076-2787 UR - https://doi.org/10.1155/2021/9931985 DO - 10.1155/2021/9931985 JF - Complexity PB - Hindawi KW - ER -