西北城市创新能力时空演化及驱动因素研究——以西北五省地级市为例

Research on the Spatio-temporal Evolution and Driving Factors of Innovation Capability of Northwestern Cities——Taking Prefecture-level Cities of Five Northwestern Provinces in China as an Example

城市作为区域发展的基本单元,其创新能力的提升能有效推动区域高质量发展。本文运用重心模型、空间耦合分析模型及地理探测器模型对西北五省2011~2020年地级市创新能力的时空演化及驱动因素进行分析研究。结果表明:2011~2020年西北五省城市创新能力呈波动上升趋势,年均增长率4.39%,区域发展现状有所改善,但城市创新系统内部协同性不足,资源配置效率不高。城市创新能力与创新环境的重心具有较强的空间重叠性,创新能力重心变动的核心驱动力逐渐由创新主体、创新绩效向创新资源转换,而城市创新能力空间分布的驱动因子主要集中在创新主体层面。

As the basic unit of regional development,the improvement of urban innovation ability can effectively promote regional high-quality development.This paper uses the gravity center model,spatial coupling analysis model,and geographical detector model to analyze the spatial and temporal evolution and driving factors of the innovation ability of prefecture-level cities in five northwestern provinces of China from 2011 to 2020.The results show that from 2011 to 2020,the urban innovation capability of the five northwestern provinces of China shows a fluctuating upward trend,with an average annual growth rate of 4.39 %.The regional development status has been improved,but the internal synergy of the urban innovation system is insufficient,and the efficiency of resource allocation is not high.The center of gravity of urban innovation capability and innovation environment has a strong spatial overlap.The core driving force of the change of innovation capability center of gravity gradually transforms from innovation subject and innovation performance to innovation resources,and the driving factors of the spatial distribution of urban innovation ability are mainly concentrated in the level of innovation subject.