%0 Journal Article %A Peng CUI %A Qiang ZOU %T Theory and method of risk assessment and risk management of debris flows and flash floods %D 2016 %R 10.18306/dlkxjz.2016.02.001 %J PROGRESS IN GEOGRAPHY %P 137-147 %V 35 %N 2 %X

Debris flows and flash floods are widely distributed mountain hazards in China. Effective hazard mitigation and prevention require understanding of hazards formation mechanisms and their potential risks. This article elaborates on the formation mechanism, risk analysis, and risk management of debris flows and flash floods. Surface runoff and material supply volume incensement, hazard scale amplification due to outburst of multiple channel blockages and bed erosion as hazard formation mechanism are discussed. Base on the dynamic process of debris flows and flash floods as well as vulnerability assessment of elements at risk, methods of risk assessment and mapping are proposed. Comprehensive engineering and non-engineering measures for hazards control shall be guided by the result of risk analysis that identifies the hazardous level of debris flows and flash floods and incorporates the vulnerability of different elements at risk. Finally, this article discusses strategies when facing risk of these hazards and puts forward a risk management system that involves the participation of local communities.

%U https://www.progressingeography.com/EN/10.18306/dlkxjz.2016.02.001