GIS-based earthquake-triggered landslide hazard zoning using contributing weight model
文献类型：期刊论文
| 作者 | Wang Meng1,2 ; Qiao Jianping1; He Siming1
|
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2010-12-01 |
| 卷号 | 7期号:4页码:339-352 |
| 关键词 | Earthquake-triggered landslide GIS Contributing weight model Hazard zoning |
| ISSN号 | 1672-6316 |
| 通讯作者 | 王萌 |
| 英文摘要 | Earthquake-triggered landslides have aroused widespread attention because of their tremendous ability to harm people's lives and properties. The best way to avoid and mitigate their damage is to develop landslide hazard maps and make them available to the public in advance of an earthquake. Future construction can then be built according to the level of hazard and existing structures can be retrofit as necessary. During recent years various approaches have been made to develop landslide hazard maps using statistical analysis or physical models. However, these methods have limitations. This study introduces a new GIS-based approach, using the contributing weight model, to evaluate the hazard of seismically-induced landslides. In this study, the city and surrounding area of Dujiangyan was selected as the research area because of its moderate-high seismic activity. The parameters incorporated into the model that related to the probability of landslide occurrence were: slope gradient, slope aspect, geomorphology, lithology, base level, surface roughness, earthquake intensity, fault proximity, drainage proximity, and road proximity. The parameters were converted into raster data format with a resolution of 25x25m(2) pixels. Analysis of the GIS correlations shows that the highest earthquake-induced landslide hazard areas are mainly in the hills and in some of the moderately steep mountainous areas of central Dujiangyan. The highest hazard zone covers an area of 11.1% of the study area, and the density distribution of seismically-induced landslides was 3.025/km(2) from the 2008 Wenchuan earthquake. The moderately hazardous areas are mainly distributed within the moderately steep mountainous regions of the northern and southeastern parts of the study area and the hills of the northeastern part; covering 32.0% of the study area and with a density distribution of 2.123/km(2) resulting from the Wenchuan earthquake. The lowest hazard areas are mainly distributed in the topographically flat plain in the northeastern part and some of the relatively gently slopes in the moderately steep mountainous areas of the northern part of Dujiangyan and the surrounding area. The lowest hazard areas cover 56.9% of the study area and exhibited landslide densities of 0.941/km(2) and less from the Wenchuan earthquake. The quality of the hazard map was validated using a comparison with the distribution of landslides that were cataloged as occurring from the Wenchuan earthquake. 43.1% of the study area consists of high and moderate hazardous zones, and these regions include 83.5% of landslides caused by the Wenchuan earthquake. The successful analysis shows that the contributing weight model can be effective for earthquake-triggered landslide hazard appraisal. The model's results can provide the basis for risk management and regional planning is. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 分类号 | P208;P642.22 |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | SUSCEPTIBILITY ; RIVER ; AREA ; MAPS |
| 收录类别 | SCI |
| 资助信息 | the 973 Program of China (Grant No.2008CB425802);the International Cooperation Program of the Ministry of Science and Technology of China (Grant No.2007DFA21150 and 2009DFB20196) |
| 语种 | 英语 |
| WOS记录号 | WOS:000284074700004 |
| 公开日期 | 2012-12-28 |
| 源URL | [http://192.168.143.20:8080/handle/131551/4696]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Geosurface Proc & Mt Hazards, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Meng,Qiao Jianping,He Siming. GIS-based earthquake-triggered landslide hazard zoning using contributing weight model[J]. JOURNAL OF MOUNTAIN SCIENCE,2010,7(4):339-352. |
| APA | Wang Meng,Qiao Jianping,&He Siming.(2010).GIS-based earthquake-triggered landslide hazard zoning using contributing weight model.JOURNAL OF MOUNTAIN SCIENCE,7(4),339-352. |
| MLA | Wang Meng,et al."GIS-based earthquake-triggered landslide hazard zoning using contributing weight model".JOURNAL OF MOUNTAIN SCIENCE 7.4(2010):339-352. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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