共 37 条
Examining the impact of polycentric urban form on air pollution: evidence from China
被引:20
作者:
Wang, Meichang
[1
]
Zhang, Bingbing
[2
]
机构:
[1] Southeast Univ, Sch Econ & Management, Nanjing, Peoples R China
[2] Nanjing Agr Univ, Nanjing 210095, Peoples R China
关键词:
Urban form;
PM2;
5;
Satellite data;
Transportation distance;
Polycentric;
China;
SOCIOECONOMIC-FACTORS;
CO2;
EMISSIONS;
POLICY;
CITY;
SPECIFICATION;
D O I:
10.1007/s11356-020-10216-1
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
Numerous studies on megacities have reported less air pollution in polycentric form urban than monocentric form urban. However, findings from these studies do not imply that increasing air pollution in region or country is accompanied by the expanding megacities. Using satellite night-light data, this study investigates the impact of polycentric urban form at the provincial level on PM(2.5)concentrations in China while controlling for variables of urban population size, energy consumption, and the weather. The results reveal that the PM(2.5)concentrations are reduced by 1.46% to 2.67%, with a 1% increase in polycentric urban form. The similar impact has also been observed in the South China, but larger in the Central China. Further studies show that the urban form-air pollution relationship mainly influenced by transportation distance and enhanced by rising per capita income. The findings suggest that regional planning and policies favoring polycentric urban patterns should be strengthened to alleviate air pollution.
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页码:43359 / 43371
页数:13
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