Environmental Consequences of Rapid Urbanization in Zhejiang Province, East China

International Journal of Environmental Research and Public Health

Xuchao Yang¹  Wenze Yue²  Honghui Xu³  Jingsheng Wu⁴ 

[1] Ocean College, Zhejiang University, Hangzhou 310058, China; E-Mail:;Department of Land Management, Zhejiang University, Hangzhou 310058, China;Zhejiang Institute of Meteorological Sciences, Hangzhou 310008, China; E-Mail:;Zhejiang Meteorological Information Center, Hangzhou 310017, China; E-Mail:

关键词: urbanization;    urban heat island;    extreme heat event;    visibility;    air pollution;   

DOI  :  10.3390/ijerph110707045

来源: mdpi

【 摘 要 】

Since reforms carried out in the late 1970s, China has experienced unprecedented rates of urban growth. Remote sensing data and surface observational data are used to investigate the urbanization process and related environmental consequences, focusing on extreme heat events and air pollution, in Zhejiang Province (ZJP, East China). Examination of satellite-measured nighttime light data indicates rapid urbanization in ZJP during the past decade, initially forming three urban clusters. With rapid urban sprawl, a significant Urban Heat Island (UHI) effect has emerged. During extreme heat events in summer, the UHI effect significantly exacerbates nocturnal heat stress in highly urbanized areas. Taking a long-term view, urbanization also causes additional hot days and hot degree days in urban areas. Urbanization also imposes a heavy burden on local and regional air quality in ZJP. Degraded visibility and an increase in haze days are observed at most meteorological stations, especially in the three urban clusters. The results show that urbanization has led to serious environmental problems in ZJP, not only on the city scale, but also on the regional scale. Maintaining a balance between the continuing process of urbanization and environmental sustainability is a major issue facing the local government.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.