城市人口规模、城市密度与环境污染——基于主要城市2003-2014年空气质量面板数据的研究

Urban Population, Urban Density and Pollution:Research on Air Quality Index Data Based on Major Cities from 2003 to 2014

城市化、工业化的不断发展,城市规模不断的扩大的同时,伴随着城市环境污染问题的加剧。通过对中国主要城市2003-2014年空气质量指数数据和城市经济发展面板数据的考察,在模型中引入城市人口规模、城市密度指标,结果显示城市人口规模的扩大会带来城市环境污染的加剧,这与很多学者的观点相一致;但结果也显示城市密度的提升,能够降低环境污染的程度。低密度的城市扩张会带来环境污染,但高密度城市发展会促进环境问题的解决。在城市化进程不断深入的过程中,高密度的紧凑型城市化成为未来的发展方向。

During the continuous development of urbanization and industrialization, urban scale unceasingly expands, resulting in more urban environment pollution. Based on China’s major cities and urban air quality index data and the economic development data in 2003-2015, the urban scale and the urban density index are introduced to the model. The conclusion shows that the urban population scale enlargement increases urban pollution, which is consistent with the opinion of many scholars;the result also shows that urban density’s increase can reduce the degree of pollution. Low-density urban sprawl brings pollution, but the high density urban development will promote the solution of the environmental problems. In the process of deepening the process of urbanization, high-density compact urbanization becomes the development direction of the future.