网络嵌入对中国沿海城市海洋经济外向服务功能的影响
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中图分类号：K902；F124；P74
文献标志码：A
文章编号：1005-9857（2026）04-0102-18
Impact of Network Embeddedness on the Outward Service Functions of Marine Economy in China’s Coastal Cities
GUO Jianke 1,2 , HAN Weibing 1 , ZHANG Yichuan 2 , LUO Hao 1 , DENG Zhiqing 1
(1. Key Research Base of Humanities and Social Sciences of the Ministry of Education, Institute of Marine Sustainable Development, Liaoning Normal University, Dalian 116029, China; 2. School of Geography, Liaoning Normal University, Dalian 116029, China)
Abstract: Under the background of the “space of flows” reshaping the spatial organization of the marine economy, it is crucial to identify the evolutionary characteristics and network-driven mechanisms of coastal city functions. Utilizing multi-dimensional flow data of the marine economy from Chinese coastal cities in 2017 and 2022, this study improves the outward service function measurement model by introducing a network efficiency factor. It classifies hierarchical echelons and factor-dominant types, and constructs a regression model to explore the influence mechanisms of network embeddedness on the outward service functions of China’s coastal cities. The findings indicate that: (1) The outward service energy levels of coastal cities exhibit a significant “pyramid-shaped” echelon pattern; core cities are mostly characterized as multi-factor-driven, while middle-and-low-level cities rely on single factors. (2) Network embeddedness is the core variable driving functional improvement. (3) Structural advantage in the network triggers a “functional spillover and transfer loss” effect, exerting a negative impact on the functional enhancement of coastal hub cities. (4) Heterogeneity analysis reveals that the promotion effect of network embeddedness on lower-level cities is significantly superior to that on higher-level cities; integrating into the network is a key path for peripheral cities to achieve functional breakthroughs.
Keywords: Marine economy; Space of flows; Outward service function; Network embeddedness; Hierarchical heterogeneity
0 引言
伴随全球化深入发展和数字技术迅速演进，地理空间内的人流、物流、资金流、信息流、技术流等要素的跨区域流动愈发频繁[1]。（剩余31037字）
