气候变化领域集成服务门户(CCPortal): Changes in Impervious Surfaces in Lhasa City, a Historical City on the Qinghai-Tibet Plateau

CCPortal

DOI	10.3390/su15065510
	Changes in Impervious Surfaces in Lhasa City, a Historical City on the Qinghai-Tibet Plateau
	Wang, Sishi; Tan, Xin; Fan, Fenglei
发表日期	2023
EISSN	2071-1050
卷号	15 期号:6
英文摘要	Impervious surface cover reflects the urban environment and urban expansion. Lhasa City is a historical city and one of the most populous on the Qinghai-Tibetan Plateau, and has been experiencing rapid urbanization in recent years. Analyzing the impervious surface distribution can reveal urban development characteristics and provide data for sustainable urban planning to protect the heritage. This study explored the spatial and temporal changes and expansion patterns of impervious surfaces in different zones of Lhasa City. Impervious surface maps (2014 and 2021) were extracted from Gaofen-1 images with a high spatial resolution (2 m) using an object-based image analysis method. Next, a gravity center, standard deviational ellipses and landscape indices were used to characterize impervious surface expansions in different zones. The result indicated that the impervious surface in Lhasa expanded from 51.149 km(2) in 2014 to 63.299 km(2) in 2021. The growth rates of impervious surfaces inside the Environmental Coordination zone were lower than in the zones outside. From 2014 to 2021, the impervious surface of Lhasa expanded in the southeast direction. Infilling and consolidation were the primary impervious surface development patterns. The expansion of the impervious surface was related to topography, population, and economic and policy factors.
关键词	impervious surfaces urban development Qinghai-Tibetan plateau landscape indices
英文关键词	URBAN HEAT-ISLAND; IMAGE-ANALYSIS; CLASSIFICATION; CHINA; EXPANSION; TEMPERATURE; PATTERN; IMPACTS; AREA
WOS研究方向	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS记录号	WOS:000960023300001
来源期刊	SUSTAINABILITY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283328
作者单位	Tianjin University; Tibet University; South China Normal University; Tibet University
推荐引用方式 GB/T 7714	Wang, Sishi,Tan, Xin,Fan, Fenglei. Changes in Impervious Surfaces in Lhasa City, a Historical City on the Qinghai-Tibet Plateau[J],2023,15(6).
APA	Wang, Sishi,Tan, Xin,&Fan, Fenglei.(2023).Changes in Impervious Surfaces in Lhasa City, a Historical City on the Qinghai-Tibet Plateau.SUSTAINABILITY,15(6).
MLA	Wang, Sishi,et al."Changes in Impervious Surfaces in Lhasa City, a Historical City on the Qinghai-Tibet Plateau".SUSTAINABILITY 15.6(2023).