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Spatial Analysis of Wenchuan Earthquake-Damaged Vegetation in the Mountainous Basins and Its Applications
Zhang, Huaizhen1,2,3; Chi, Tianhe1; Fan, Jianrong2; Hu, Kaiheng2; Peng, Ling1
Corresponding AuthorChi, Tianhe
2015-05-01
Source PublicationREMOTE SENSING
ISSN2072-4292
Volume7Issue:5Pages:5785-5804
SubtypeArticle
AbstractThe 2008 Wenchuan Earthquake induced landslides that destroyed large swaths of mountain vegetation. Presently, the damaged vegetation areas are exhibiting various stages of recovery depending on environments. A spatial analysis of earthquake-damaged and recovered vegetation can provide useful information for understanding landslide processes. The mountainous watersheds of the Minjiang River Upstream, near Yinxiu Town (one of the highest seismic intensity zones during the Wenchuan earthquake) were selected. A DSAL (digital elevation model (DEM), slope, aspect and lithology) spatial zonation method was established to detect natural features of the vegetation survival environments, and damaged and recovered vegetation areas were extracted using the normalized difference vegetation index (NDVI) changes form multi-temporal (2001-2014) Landsat Thematic Mapper/Enhanced Thematic Mapper/Operational Land Imager (TM/ETM/OLI) images. Statistical results show that the vegetation growth was mainly controlled by its survival environments, and vegetation has coupling relations with slope stability. Then, the slope stability model was developed through multivariate analysis of earthquake-damaged vegetation and its controlling factors (i.e., topographic environments and material properties). Application to the Mianyuan River and Subao River basins validated the proposed model, showing that monitoring the vegetation (using the remote sensing images) can be used to assess the slope stability, and model results show what vegetative conditions with its survival environments are susceptible to landslide processes, although the predicted values may be higher than the actual values in the most mountainous basins. Our modeling approach may also be valuable for use in other regions prone to landslide hazards.
KeywordLandslide Susceptibility Lantau-island Hong-kong China Gis Hazards Recovery
WOS HeadingsScience & Technology ; Technology
DOI10.3390/rs70505785
WOS Subject ExtendedRemote Sensing
Indexed BySCI
WOS KeywordLANDSLIDE SUSCEPTIBILITY ; LANTAU-ISLAND ; HONG-KONG ; CHINA ; GIS ; HAZARDS ; RECOVERY
Language英语
WOS SubjectRemote Sensing
WOS IDWOS:000357596900002
Funding OrganizationNational Science and Technology Support Program(2012BAC06B02) ; Chinese Academy of Sciences(KZZD-EW-05-01-04) ; Beijing Natural Science Foundation(4144088)
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10819
Collection数字山地与遥感应用中心
山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Zhang, Huaizhen,Chi, Tianhe,Fan, Jianrong,et al. Spatial Analysis of Wenchuan Earthquake-Damaged Vegetation in the Mountainous Basins and Its Applications[J]. REMOTE SENSING,2015,7(5):5785-5804.
APA Zhang, Huaizhen,Chi, Tianhe,Fan, Jianrong,Hu, Kaiheng,&Peng, Ling.(2015).Spatial Analysis of Wenchuan Earthquake-Damaged Vegetation in the Mountainous Basins and Its Applications.REMOTE SENSING,7(5),5785-5804.
MLA Zhang, Huaizhen,et al."Spatial Analysis of Wenchuan Earthquake-Damaged Vegetation in the Mountainous Basins and Its Applications".REMOTE SENSING 7.5(2015):5785-5804.
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