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Relations between density of earthquake-damaged trace and environmental factors in seismic intensity: a case study in Wenchuan County, China
Yu, Hui1,2; Deng, Wei1; Luo, Yong1,2
Corresponding AuthorDeng W
2012
Source PublicationENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
Volume67Issue:6Pages:1631-1637
SubtypeArticle
AbstractMany studies have been designed to assess seismic hazard and to improve post-earthquake damage evaluation models. Compared with previous studies, the research attempted to solve the problems of the effectiveness differences of seismic intensity on density of Earthquake-damaged trace (D-e) and established the appropriate models for D-e in different scale of seismic intensity. D-e as a relative value reduced the influence of area on earthquake-damaged trace. The research will provide the necessary scientific support to fast post-earthquake damage assessment and modeling. By utilizing GIS, RS and field investigation data, the spatial distribution characteristic of earthquake-damaged traces was analyzed. Effective factors including seismic intensity, distance to rivers and slope were identified through PCA. Specifically, seismic intensity was identified as the key factor. The inherent relations between D-e and seismic intensity, D-e and distance to rivers in seismic intensity, and D-e and slope in seismic intensity were modeled by regression analysis. The results demonstrated that both earthquake energy and D-e have attenuation characteristics. There is a significant positive correlation between D-e and seismic intensity (the pearson correlation is 0.917). That is, the higher the seismic intensity, the greater the D-e was. The erosion of river leads to steep slope, which is in favor of the formation of mountain hazards. D-e showed the decreasing tendency with the increasing distance to river. With the increase of slope, the D-e gradually became stronger. For distance to river, the largest changing rate of D-e appeared on seismic intensity XI, but for slope, the largest changing rate of D-e appeared on seismic intensity X.
KeywordDensity Of Earthquake-damaged Trace Environmental Factors Seismic Intensity
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1007/s12665-012-1604-4
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Geology ; Water Resources
Indexed BySCI
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000310615100006
Funding OrganizationDirectional Project of Chinese Academy of Sciences(KZX2-YW-333 ; National Natural Science Funds(41101552) ; KZCX2-EW-317 ; Y1R2080080)
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5319
Collection山区发展研究中心
山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 10049, 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
Yu, Hui,Deng, Wei,Luo, Yong. Relations between density of earthquake-damaged trace and environmental factors in seismic intensity: a case study in Wenchuan County, China[J]. ENVIRONMENTAL EARTH SCIENCES,2012,67(6):1631-1637.
APA Yu, Hui,Deng, Wei,&Luo, Yong.(2012).Relations between density of earthquake-damaged trace and environmental factors in seismic intensity: a case study in Wenchuan County, China.ENVIRONMENTAL EARTH SCIENCES,67(6),1631-1637.
MLA Yu, Hui,et al."Relations between density of earthquake-damaged trace and environmental factors in seismic intensity: a case study in Wenchuan County, China".ENVIRONMENTAL EARTH SCIENCES 67.6(2012):1631-1637.
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