Quantifying the spatial distribution of soil mass wasting processes after the 2008 earthquake in Wenchuan, China A case study of the Longmenshan area
文献类型：期刊论文
| 作者 | Di, Baofeng1,3; Zeng, Hongjuan2; Zhang, Minghua3; Ustin, Susan L.3; Tang, Ya1; Wang, Zhaoyin4; Chen, Ningsheng5 ; Zhang, Bin6
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| 刊名 | REMOTE SENSING OF ENVIRONMENT
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| 出版日期 | 2010-04-15 |
| 卷号 | 114期号:4页码:761-771 |
| 关键词 | Wenchuan Earthquake Longmenshan scenic area (LMSS) Mass wasting of soil Landslides RS GIS |
| ISSN号 | 0034-4257 |
| 通讯作者 | Di, BF |
| 英文摘要 | The beautiful Longmenshan area is one of the main tourist attractions in Sichuan Province, China. The epicenter of a catastrophic earthquake measured at 8.0 Ms (China Seismological Bureau), occurred within this area at Wenchuan (31 degrees 01'16"N, 103 degrees 22'01"E) at 14:28 May 12, 2008 (Beijing time). The earthquake triggered numerous types of landslide transport and hazards, including soil and debris avalanches, rockfalls, slumps, debris flows, creation of barrier lakes and slope fattenings. This paper examines the landslide hazards in the Longmenshan area caused by the earthquake using remotely sensed images, mainly Beijing-1 Microsatellite data before and after the earthquake, compared to digital elevation maps and slope gradient maps, land use and vegetation cover maps. Areas of erosion and loss of vegetation were compared from pre- and post-earthquake data, from which were calculated changes in vegetated areas, bare slopes, and mass movement during the earthquake. These events occurred over altitudes from 1000 to 4000 m and on slope angles between 25 and 55 degrees. The results show that the total area of erosion and land movement due to the earthquake increased by 86.3 km(2) (19.2% of the study area). Compared with pre-earthquake, the areas of very low intensity soil erosion and moderate intensity soil erosion were respectively reduced by 3.6 km(2), 24.3 km(2) and 30.9 km(2). On the other hand, the areas of severe and very severe intensity soil erosion were substantially increased by 45.8 km(2) and 99.2 km(2). In the post-earthquake stage, the bare areas (vegetation cover <15%) have increased by 65.8 km(2). Without vegetation, the denuded earthquake damaged slopes and other high risk sites have become severe erosion problems. Thus, it is essential to continue long-term monitoring of mass wasting in the denuded areas and evaluate potential risk sites for future landslides and debris flows. We anticipate that these results will be helpful in decision making and policy planning for recovery and reconstruction in the earthquake-affected area. (C) 2009 Elsevier Inc. All rights reserved. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Technology |
| 类目[WOS] | Environmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 关键词[WOS] | VEGETATION RECOVERY ; CENTRAL TAIWAN ; EROSION ; LANDSLIDES ; GIS ; IMPACT ; JAPAN |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000274982700006 |
| 公开日期 | 2013-07-05 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/5601]  |
| 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.Sichuan Univ, Dept Architecture & Environm, Chengdu 610065, Peoples R China 2.Beijing Normal Univ, Sch Geog, Beijing 100875, Peoples R China 3.Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA 4.Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China 5.CAS, Chengdu Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 6.China W Normal Univ, Land & Resources Coll, Nanchong 637002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Di, Baofeng,Zeng, Hongjuan,Zhang, Minghua,et al. Quantifying the spatial distribution of soil mass wasting processes after the 2008 earthquake in Wenchuan, China A case study of the Longmenshan area[J]. REMOTE SENSING OF ENVIRONMENT,2010,114(4):761-771. |
| APA | Di, Baofeng.,Zeng, Hongjuan.,Zhang, Minghua.,Ustin, Susan L..,Tang, Ya.,...&Zhang, Bin.(2010).Quantifying the spatial distribution of soil mass wasting processes after the 2008 earthquake in Wenchuan, China A case study of the Longmenshan area.REMOTE SENSING OF ENVIRONMENT,114(4),761-771. |
| MLA | Di, Baofeng,et al."Quantifying the spatial distribution of soil mass wasting processes after the 2008 earthquake in Wenchuan, China A case study of the Longmenshan area".REMOTE SENSING OF ENVIRONMENT 114.4(2010):761-771. |
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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