Evaluation of social vulnerability to floods in Huaihe River basin: a methodology based on catastrophe theory
W. J. You1,2 and Y. L. Zhang11School of Emergency management, Henan Polytechnic University, Jiaozuo Henan, 454000, China 2Institute of Disaster Prevention Science and Safety Technology, Central South University, Changsha Hunan, 410075, China
Received: 11 Jun 2015 – Accepted for review: 06 Aug 2015 – Discussion started: 26 Aug 2015
Abstract. Huaihe River is one of the seven largest rivers in China, in which floods occurred frequently. Disasters cause huge casualties and property losses to the basin, and also make it famous for high social vulnerability to floods. Based on the latest social-economic data, the index system of social vulnerability to floods was constructed, and Catastrophe theory method was used in the assessment process. The conclusion shows that social vulnerability as a basic attribute attached to urban environment, with significant changes from city to city across the Huaihe River basin. Different distribution characteristics are present in population, economy, flood prevention vulnerability. It is important to make further development of social vulnerability, which will play a positive role in disaster prevention, improvement of comprehensive ability to respond to disasters.
You, W. J. and Zhang, Y. L.: Evaluation of social vulnerability to floods in Huaihe River basin: a methodology based on catastrophe theory, Nat. Hazards Earth Syst. Sci. Discuss., 3, 4937-4965, doi:10.5194/nhessd-3-4937-2015, 2015.