【摘要】 数字经济、旅游经济与新型城镇化是构建区域高质量发展新格局的核心动能，探究三者（DTU系统）的耦合协调关系及其影响机制具有重要的理论价值和现实意义。基于2011—2020年长三角地区41个城市的面板数据，利用熵值法、耦合协调度模型、时空地理加权回归模型、地理探测器等方法，测度评价DTU各子系统发展水平及其耦合协调度的时空演变格局，并进一步分析DTU系统耦合协调度时空差异的影响因素。结果表明：(1)长三角地区数字经济和新型城镇化水平呈逐年上升趋势，而旅游经济在2011—2019年间平稳增长，但于2020年出现大幅下跌；数字经济的增长极为上海、杭州和南京，新型城镇化的增长极为上海和南京，旅游经济的增长极为上海和杭州。(2) DTU系统耦合协调度逐渐由轻度失调阶段过渡到濒临失调阶段，且呈现“核心-边缘”空间非均衡性格局，形成了“东南高-西北低”的空间分布特征；上海、杭州、宁波、南京、苏州、无锡、合肥等城市的耦合协调度相对较高。(3) DTU系统耦合协调度是由自然、政策、市场等类别中的7个因素综合作用的结果，各因素均具有较强的时空异质性，且双因素交互作用均强于单因素。其中，旅游市场关注度、夜间经济和气温对DTU系统耦合协调度呈正向促进作用且平均影响程度较强，地形和旅游市场关注度的平均交互作用最强。本研究不仅有助于厘清数字经济、旅游经济与新型城镇化三者之间的耦合协调关系及其影响机制，同时也能为相关区域经济社会高质量发展提供决策参考。更多还原

【Abstract】 Digital economy, tourism economy and new urbanization are the core driving forces for building a new pattern of regional high-quality development. It is of great theoretical value and practical significance to explore the coupling coordination relationship and influence mechanism among them(DTU system). However, a review of existing studies shows that most relevant literatures on digital economy, tourism economy and new urbanization analyze the relationship between the two, while few literatures include the three into the same framework for research. This is not only not conducive to the systematic clarification of the integrated development relationship between digital economy, tourism economy and new urbanization,but also not conducive to the systematic construction of a strategic system for the economic and social integration development of the Yangtze River Delta region. In view of this, based on the panel data of 41 cities in the Yangtze River Delta region from 2011 to 2020, this paper uses entropy method, coupling coordination degree model, GTWR model, Geodetector and other methods to measure and evaluate the spatio-temporal evolution of the development level of each subsystem of DTU and the coupling coordination degree and its factors of DTU. The results show that:(1) The digital economy and new urbanization in the Yangtze River Delta are increasing year by year, the tourism economy grew steadily from 2011 to 2019, but was hit by public health emergencies in 2020. The growth poles of digital economy is in Shanghai,Hangzhou and Nanjing, and the growth poles of new urbanization is in Shanghai and Nanjing,while the growth poles of tourism economy is in Shanghai and Hangzhou.(2) The coupling coordination degree of DTU system in the Yangtze River Delta region transits from the mildly disordered stage to the verge of disordered stage, and presents a “core-edge” spatial disequilibrium pattern, and forms a spatial distribution feature of “high in the southeast and low in the northwest”. Shanghai, Hangzhou, Ningbo, Nanjing, Suzhou, Wuxi, Hefei have a relatively high degree of coupling coordination.(3) The coupling coordination degree of DTU system in the Yangtze River Delta region is the result of the comprehensive effect of 7 factors in the categories of nature, market and policy. Each factor has strong spatial and temporal heterogeneity, and the two-factor interaction is stronger than the single factor. Among the seven factors, tourism market attention, night economy and air temperature have a positive promoting effect and the average influence degree is strong, and the average interaction between terrain and tourism market attention is the strongest. This study not only helps to clarify the coupling coordination mechanism between digital economy, tourism economy and new urbanization, but also can provide reference for high-quality economic and social development in relevant regions.更多还原