干旱区生态环境知识资源中心(Arid): Increasing Human-Perceived Heat Stress Risks Exacerbated by Urbanization in China: A Comparative Study Based on Multiple Metrics

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DOI	10.1029/2020EF001848
	Increasing Human-Perceived Heat Stress Risks Exacerbated by Urbanization in China: A Comparative Study Based on Multiple Metrics
	Luo, Ming; Lau, Ngar-Cheung
通讯作者	Luo, M (corresponding author), Sun Yat Sen Univ, Guangdong Prov Engn Res Ctr Publ Secur & Disaster, Guangdong Key Lab Urbanizat & Geosimulat, Sch Geog & Planning, Guangzhou, Peoples R China. ; Luo, M (corresponding author), Chinese Univ Hong Kong, Inst Environm Energy & Sustainabil, Shatin, Hong Kong, Peoples R China.
来源期刊	EARTHS FUTURE
EISSN	2328-4277
出版年	2021
卷号	9 期号:7
英文摘要	More than half of the total population in China are living in cities. Especially, the people in highly developed and spatially integrated city clusters, i.e., urban agglomerations (UAs), are facing increasing human-perceived heat stress that describes the combined effects of hot temperature, high humidity, and lowered surface wind speed. By analyzing multiple indicators over 20 major UAs across China, we demonstrate that summer heat stress has been significantly intensifying in nearly all UAs during 1971-2014. This intensification is more profound in northern than southern regions and is especially stronger in more urbanized and densely populated areas (e.g., Beijing-Tianjin-Hebei and the Yangtze River Delta). Based on a dynamic classification of weather stations using time-varying land use/land cover maps, we find that urban core areas exhibit distinctly stronger increasing heat stress trends than their surrounding rural areas. On average, urbanization contributes to approximately one-quarter of the total increase in mean heat stress over urban core areas of UAs and nearly half of the total increase in extreme heat stress events. The urbanization effect is also dependent on the geographical region within China. Urbanization tends to have stronger intensifying effects on heat stress in UAs with higher population density in low-altitude areas, while it has a relatively weaker intensifying and even weakening effect in some arid and high-altitude regions. Moreover, as various heat stress metrics may yield different estimations of long-term trend and urbanization contribution, the particular choice of heat stress indicator is of critical importance for investigations on this subject matter.
英文关键词	apparent temperature climate change heat index heat stress heatwave urban agglomerations in China urbanization effect wet-bulb temperature
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000677819700022
WOS关键词	SUMMER HEAT ; TEMPERATURE ; CLIMATE ; TRENDS ; HUMIDITY ; STATIONS ; IMPACT
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368633
作者单位	[Luo, Ming] Sun Yat Sen Univ, Guangdong Prov Engn Res Ctr Publ Secur & Disaster, Guangdong Key Lab Urbanizat & Geosimulat, Sch Geog & Planning, Guangzhou, Peoples R China; [Luo, Ming; Lau, Ngar-Cheung] Chinese Univ Hong Kong, Inst Environm Energy & Sustainabil, Shatin, Hong Kong, Peoples R China; [Lau, Ngar-Cheung] Chinese Univ Hong Kong, Dept Geog & Res Management, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Luo, Ming,Lau, Ngar-Cheung. Increasing Human-Perceived Heat Stress Risks Exacerbated by Urbanization in China: A Comparative Study Based on Multiple Metrics[J],2021,9(7).
APA	Luo, Ming,&Lau, Ngar-Cheung.(2021).Increasing Human-Perceived Heat Stress Risks Exacerbated by Urbanization in China: A Comparative Study Based on Multiple Metrics.EARTHS FUTURE,9(7).
MLA	Luo, Ming,et al."Increasing Human-Perceived Heat Stress Risks Exacerbated by Urbanization in China: A Comparative Study Based on Multiple Metrics".EARTHS FUTURE 9.7(2021).