IMHE OpenIR  > 山地灾害与地表过程重点实验室
Potential Debris Flow Gully and Its Discrimination -A case study in Wenchuan earthquake hit areas
Language英语
Chen, Xingzhang1; You, Yong2; Liu, Jinfeng2
Corresponding AuthorChen, Xingzhang
2012
Source Publication1st International Conference on Energy and Environmental Protection (ICEEP 2012) ; ADVANCES IN ENVIRONMENTAL SCIENCE AND ENGINEERING, PTS 1-6 Advanced Materials Research Vol: 518-523
Pages4620-4625
Conference DateJUN 23-24, 2012
Conference PlaceHohhot, PEOPLES R CHINA
Funding OrganizationInner Mongolia Univ
Abstract

In this paper, we firstly defined the potential debris flow gully. And then using the data of different gullies in Wenchuan earthquake hit areas, we built a discrimination model of potential debris flow gully by Fisher Linear Discrimination Analysis method. Finally, the model was used to discriminate the gullies in Jinxihe catchment, in Anxian County. Potential debris flow gully is a kind of special gully which is in a special evolution phase of the gully when the gully has the happening possibilities of debris flow but no debris flow records. Because potential debris flow can often pose more serious disasters, discrimination of potential debris flow gully is important for disaster prevention and mitigation. To build discrimination model of potential debris flow gully, a database of different gullies in quake-hit areas was established and six discrimination indices were selected based on cause analysis of debris flow. Using the database and the six discrimination indices, we built the discrimination model by Fisher Linear Discrimination Analysis method. The discrimination model was used to discriminate the gullies in Jinxihe catchment. Discrimination results showed that the discrimination model was effective and feasible in discriminating potential debris flow gullies, but it still needs further revised and perfected.

KeywordPotential Debris Flow Gully Discrimination Model Fisher Linear Discrimination Analysis Method The Wenchuan Earthquake Anxian County
DOI10.4028/www.scientific.net/AMR.518-523.4620
ISBN978-3-03785-416-7
ISSN1022-6680
WOS IDWOS:000313845902108
Citation statistics
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10863
Collection山地灾害与地表过程重点实验室
Affiliation1.School of Environment and Resource, Southwest University of Science and Technology, Mianyang City, Sichuan Province, China
2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu City, Sichuan Province, China
Recommended Citation
GB/T 7714
Chen, Xingzhang,You, Yong,Liu, Jinfeng. Potential Debris Flow Gully and Its Discrimination -A case study in Wenchuan earthquake hit areas[C],2012:4620-4625.
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