The footprint of urban heat island effect in 302 Chinese cities: Temporal trends and associated factors

doi:10.1016/j.scitotenv.2018.11.171

	The footprint of urban heat island effect in 302 Chinese cities: Temporal trends and associated factors
	Yang, Qiquan 1; Huang, Xin 1,2; Tang, Qiuhong 3,4
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-03-10
卷号	655 页码:652-662
关键词	Urban heat island (UHI) Land surface temperature (LST) Temporal trend Footprint China
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2018.11.171
通讯作者	Huang, Xin(xhuang@whu.edu.cn) ; Tang, Qiuhong(tangqh@igsnrr.ac.cn)
英文摘要	The urban heat island (UHI) effect has been a concern for decades due its adverse influence on energy consumption, air and water quality, and, most importantly, the health of urban dwellers. Researchers have paid much attention to the magnitude of the UHI effect, but ignored its spatial extent (i.e. footprint) which is another important aspect of the UHI effect. In this study, we systematically analyzed the footprint of surface UHI (SUHI) effect in 302 Chinese cities, especially temporal trends of the footprint, by using multi-source remote sensing data. The footprint of SUHI effect (FP) was estimated by the Gaussian surface, and its temporal trend was examined by the Mann-Kendal and the Sen's slope estimator non-parametric tests. We found the FP showed evident diurnal (daytime > nighttime), seasonal (summer > winter) and inter-city (big cities > small and medium-sized cities) differences. During the period 2003-2016, over 80% of the 302 cities exhibited increasing trends of the FP in annual days and summer days, and the increasing trends were statistically significant (p < 0.05) in about half of these cities. In the nights, the FP increased in more than 70% of the cities, and about one-third of the 302 cities experienced significantly increasing trends of the FP. On average, the annual daytime and annual nighttime FPs increased at a rate of 5.0% per year and 3.8% per year, respectively. More importantly, the correlation analysis indicated that the increase of anthropogenic heat emissions and the decrease of vegetation activities and surface albedos should take lead responsibility for the expansion of the FP in the urbanization process. These results reveal that the spatial extent of heat island effect has expanded significantly in numerous Chinese cities, and this increasing trend will be sustained in the coming years if no more effective measures are carried out. (C) 2018 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[41522110] ; National Natural Science Foundation of China[41771360] ; National Natural Science Foundation of China[41790424] ; Hubei Provincial Natural Science Foundation of China[2017CFA029] ; National Key Research and Development Program of China[2016YFB0501403]
WOS关键词	SURFACE-TEMPERATURE ; MODIS ; EXPANSION ; AREA ; INTENSITY ; DYNAMICS ; PATTERNS ; IMPACTS ; HOUSTON ; ALBEDO
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000455034600066
资助机构	National Natural Science Foundation of China ; Hubei Provincial Natural Science Foundation of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/50533]
专题	中国科学院地理科学与资源研究所
通讯作者	Huang, Xin; Tang, Qiuhong
作者单位	1.Wuhan Univ, Sch Remote Sensing & Informat Engn, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China 2.Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan 430079, Hubei, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang, Qiquan,Huang, Xin,Tang, Qiuhong. The footprint of urban heat island effect in 302 Chinese cities: Temporal trends and associated factors[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,655:652-662.
APA	Yang, Qiquan,Huang, Xin,&Tang, Qiuhong.(2019).The footprint of urban heat island effect in 302 Chinese cities: Temporal trends and associated factors.SCIENCE OF THE TOTAL ENVIRONMENT,655,652-662.
MLA	Yang, Qiquan,et al."The footprint of urban heat island effect in 302 Chinese cities: Temporal trends and associated factors".SCIENCE OF THE TOTAL ENVIRONMENT 655(2019):652-662.