中国城市空气质量的区域差异及归因分析
赵艳艳, 张晓平, 陈明星, 高珊珊, 李润奎

Regional variation of urban air quality in China and its dominant factors
ZHAO Yanyan, ZHANG Xiaoping, CHEN Mingxing, GAO Shanshan, LI Runkui
图1 本文建模选取的城市空气质量影响因素和变量说明
Fig. 1 Explanatory variables for urban air quality in China and their descriptions