Correlations between Urbanization and Vegetation Degradation across the   World&apos;s Metropolises Using DMSP/OLS Nighttime Light Data

doi:10.3390/rs70202067

CORC > 北京大学 > 城市与环境学院

	Correlations between Urbanization and Vegetation Degradation across the World's Metropolises Using DMSP/OLS Nighttime Light Data
	Liu, Yanxu ; Wang, Yanglin ; Peng, Jian ; Du, Yueyue ; Liu, Xianfeng ; Li, Shuangshuang ; Zhang, Donghai
刊名	remote sens basel
	2015
关键词	SATELLITE IMAGERY POWER CONSUMPTION URBAN-DEVELOPMENT CLIMATE-CHANGE UNITED-STATES CHINA CITIES CITY LIGHTS TIME-SERIES SPOT-VGT TRENDS
DOI	10.3390/rs70202067
英文摘要	Changes in biodiversity owing to vegetation degradation resulting from widespread urbanization demands serious attention. However, the connection between vegetation degradation and urbanization appears to be complex and nonlinear, and deserves a series of long-term observations. On the basis of the Normalized Difference Vegetation Index (NDVI) and the image's digital number (DN) in nighttime stable light data (NTL), we delineated the spatiotemporal relations between urbanization and vegetation degradation of different metropolises by using a simplified NTL calibration method and Theil-Sen regression. The results showed clear and noticeable spatiotemporal differences. On spatial relations, rapidly urbanized cities were found to have a high probability of vegetation degradation, but in reality, not all of them experience sharp vegetation degradation. On temporal characteristics, the degradation degree was found to vary during different periods, which may depend on different stages of urbanization and climate history. These results verify that under the scenario of a vegetation restoration effort combined with increasing demand for a high-quality urban environment, the urbanization process will not necessarily result in vegetation degradation on a large scale. The positive effects of urban vegetation restoration should be emphasized since there has been an increase in demand for improved urban environmental quality. However, slight vegetation degradation is still observed when NDVI in an urbanized area is compared with NDVI in the outside buffer. It is worthwhile to pay attention to landscape sustainability and reduce the negative urbanization effects by urban landscape planning.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000352279000001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Remote Sensing; SCI(E); EI; 5; ARTICLE; liuyanxu@pku.edu.cn; ylwang@urban.pku.edu.cn; jianpeng@urban.pku.edu.cn; duyueyue91@pku.edu.cn; liuxianfeng7987@163.com; lss@mail.bnu.edu.cn; donghai_zhang@mail.bnu.edu.cn; 2; 2067-2088; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/322174]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Liu, Yanxu,Wang, Yanglin,Peng, Jian,et al. Correlations between Urbanization and Vegetation Degradation across the World's Metropolises Using DMSP/OLS Nighttime Light Data[J]. remote sens basel,2015.
APA	Liu, Yanxu.,Wang, Yanglin.,Peng, Jian.,Du, Yueyue.,Liu, Xianfeng.,...&Zhang, Donghai.(2015).Correlations between Urbanization and Vegetation Degradation across the World's Metropolises Using DMSP/OLS Nighttime Light Data.remote sens basel.
MLA	Liu, Yanxu,et al."Correlations between Urbanization and Vegetation Degradation across the World's Metropolises Using DMSP/OLS Nighttime Light Data".remote sens basel (2015).