高铁开通对城市绿色创新“量质齐升”影响研究

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中图分类号：F532.8；[U-9] 文献标志码：A

本文引用格式：，，.高铁开通对城市绿色创新“量质齐升"影响研究[J].华东交通大学学报，2025，42（2）：87-95.

Research on the Impact of High-Speed Railway Opening on the "Dual Enhancement of Quantity and Quality’ in Urban Green Innovation

Xu Yuping，Mei Zheyuan，Hu Yongwei

（SchoolofTransportationEngineering，EastChinaJiaotong University，Nanchang 33Oo13，China）

Abstract： The influence of high-speed railway on urban green technology innovation represents apivotal area of study within the broader research on the impact of high-speed railway on regional innovation.To investigate the effect of high-speed railwayon the“dual enhancement of quantity and quality”inurban green technology innovation，a multi-period Difference-in-Differences （DID） model was established.This model utilises panel data from 41 cities within the Yangtze River Deltaurban agglomeration spanning the years 2004 to 2019 to explore how the high-speed railway opening influences urban green technology innovation.The findings reveal that the introduction of high-speed railway significantly promotes the“dual enhancement of quantityand quality”in green technology innovation across the Yangtze River Delta cities.Mechanism analysis further indicates that high-speed railway impacts urban green technology innovation by bolstering economic agglomeration and venturecapital investment.Additionally，the effects of high-speed railwayopening exhibit heterogeneity in termsof city size and regional characteristics，with notable impacts observed in both large cities and smallto mediumsized cities.Specifically， the influence of high-speed railway is more pronounced in Jiangsu Province compared to Zhejiang and Anhui Provinces.This study systematically elucidates the relationship between the high-speed railway opening and the“dual enhancement of quantity and quality”in urban green technology innovation within the Yangtze River Delta region. The conclusions remain robust following rigorous stability tests.

Key Words： high-speed railway opening; green technology innovation; dual enhancement of quantity and quality; difference in differences;mediating effect

Citation format： XU YP，MEI Z Y，HU Y W. Research on the impact of high-speed railway opening on the “dual enhancement of quantity and quality”in urban green innovation[J].Journal of East China Jiaotong University，2025，42（2）： 87-95.

研究高铁开通对城市绿色技术创新能力的影响，对于强化区域绿色技术创新和强化绿色科技创新载体建设具有重要意义。（剩余12179字）