Digital technology is the technological support for the construction of digital China.An in-depth investigation into the spatio-temporal evolution characteristics and development trends of the digital technology innovation level in cities can help optimize the spatial layout of digital China.This study uses Moran's I index,standard deviation ellipse,and Dagum Gini coefficient to portray the spatio-temporal evolution characteristics of the digital technology innovation level in Chinese cities and predict its development trend with the help of the Markov chain model.The results show that:(1)From 2006 to 2021,the digital technology innovation level in cities across the country and various regions exhibited an increasing trend,showing the development characteristics of"strong in the east and weak in the west,and strong in the south and weak in the north",with Beijing,Shenzhen,and Shanghai being the"leaders"in China.(2)There are spatial positive spillover effects and low-level homogenization agglomeration tendency of digital technology innovation level in Chinese cities.The centre of gravity of digital technology innovation level in Chinese cities is moving towards the sorth-west,showing a spatial distribution pattern of"north by east and south by west".In the eastern-central region,the distribution characteristic is"agglomeration-diffusion-agglomeration".In addition,spatial differences in the level of digital technology innovation in Chinese cities are decreasing,with inter-regional and intra-regional differences being the main sources of the overall differences in the east-west and north-south directions.(3)Digital technology innovation in Chinese cities can achieve an upward shift in the short term,however,leapfrogging remains challenging.Throughout the research period,70.498%of the cities were able to achieve positive leapfrog transitions.Factors such as economic development,information and communication technology,financial investment in science and technology,financial deepening,city scale,and human capital influence the dynamic transfer of the level of digital technology innovation in cities.Improving the level of digital technology innovation in cities can gradually strengthen the promotion effect of each influencing factor.The study findings provide theoretical support and scientific reference for formulating the coordinated development policy of urban digital technology innovation and building digital China.
digital technology innovationspatio-temporal evolutiontrend predictionChinese city