Resilient capacity assessment for geological failure areas: examples from communities affected by debris flow disaster
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This study establishes a novel method for assessing the community resilient capacity of debris flow disasters with appropriate parameters, such as responding, monitoring and communication capabilities. This study adopts eight communities in Taiwan, namely Nangang, Tongfu, Jhongyang, Laiyuan, Chingfu, Sinsheng, Shangan and Jyunkeng, as examples. First, the Analytic Hierarchy Process was applied to establish the framework of the community resiliency capacity, including the community’s resources for disaster resilience and resident capabilities. The community’s resources for disaster resilience are identified by surveying the community leaders via checklists. Resident capabilities are determined using questionnaires. The community resilient capacity refers to the sum of the results from these two investigations. The two investigations have similar weights, indicating that they are equally significant when evaluating community resilient capacity. Second, FLO-2D software is utilized for hazard analysis by simulation results of deposited areas for debris flows, and then these areas were categorized according to hazard degrees. Finally, the vulnerability of communities is classified based on the land use type. In summary, the values of capacity, hazard and vulnerability are integrated to determine the risk of debris flow for each community. A risk map is then generated.
KeywordsHazard analysis Vulnerability Resilient capacity Risk assessment Taiwan
The authors would like to thank the Soil and Water Conservation Bureau (SWCB), Council of Agriculture, for financially supporting this research. All of the SWCB’s Engineering Offices and involved units of counties, towns, and communities are appreciated for their full cooperation, as well as local residents for their valuable comments.
- Chen SC, Wang YT, Wu TY (2005) The assessment of disaster resilient capacity to the Hillslope Villages at counties with high geological failure risk. J Chin Soil Water Conserv 36(4):323–337 (in Chinese)Google Scholar
- Green JL, Harker JO (1988) Multiple perspective analyses of classroom discourse. Ablex, NorwoodGoogle Scholar
- ISDR (2002) Living with risk: a global review of disaster reduction initiatives. United Nations ISDR, Geneva, p 41Google Scholar
- Liu X, Mo D (2003) Risk assessment on debris flow. Chengtu, China. ISBN:7-5372-3567-8Google Scholar
- Petrascheck A, Kienholz H (2003) Hazard assessment and mapping of mountain risks in Switzerland. In: Rickenmann D, Chen CL (eds) Debris-flow hazards mitigation: mechanics, prediction, and assessment. Mill Press, Rotterdam, pp 25–38Google Scholar
- Wang YT (2005) Establishing an assessment model for the resilient capacity of slopeland communities—for Taichung and Nantou Counties. Master, National Chung-Hsing University, Taiwan (in Chinese)Google Scholar
- Wu TY (2006) Assessment of resilient capacity for debris flow disasters communities. Master, National Chung-Hsing University, Taiwan (in Chinese)Google Scholar