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The damage of urban vegetation from super typhoon is associated with landscape factors: Evidence from Sentinel-2 imagery

Authors :
Shuai Xu
Xiaolin Zhu
Eileen H. Helmer
Xiaoyue Tan
Jiaqi Tian
Xuehong Chen
Source :
International Journal of Applied Earth Observations and Geoinformation, Vol 104, Iss , Pp 102536- (2021)
Publication Year :
2021
Publisher :
Elsevier, 2021.

Abstract

Many studies have investigated the impacts of typhoons on natural vegetation, but the influencing factor of urban vegetation damage from super typhoon is not clear. Therefore, this study investigated the vegetation damage patterns in eight cities affected by Typhoon Mangkhut (the 2nd strongest tropical storm worldwide in 2018) using the normalized difference vegetation index (NDVI) derived from Sentinel-2 images. The vegetation damage maps have an overall accuracy of 97% using the very high-resolution WorldView-3 images as reference data. The results show that (1) The typhoon-induced vegetation damage show high spatial heterogeneity in urban areas and varies with land cover types. Residential greenspace and street trees are more susceptible to typhoon disturbance than natural vegetation. (2) Wind intensity is still an important factor in urban vegetation damage (r2 = 0.43, P value

Details

Language :
English
ISSN :
15698432
Volume :
104
Issue :
102536-
Database :
Directory of Open Access Journals
Journal :
International Journal of Applied Earth Observations and Geoinformation
Publication Type :
Academic Journal
Accession number :
edsdoj.0a9eef4819654bb6a503850bf35d1abd
Document Type :
article
Full Text :
https://doi.org/10.1016/j.jag.2021.102536