Spatio-temporal changes of exposure and vulnerability to floods in China

Advances in Climate Change Research

Chao Gao¹  Heike Hartmann²  Xiu-Cang Li³  Jian-Qing Zhai³  Bu-da Su³  Yan-Jun Wang³ 

[1]College of Territorial Resources and Tourism, Anhui Normal University, Wuhu 241000, China

[2]Department of Geography, Geology, and the Environment, Slippery Rock University of Pennsylvania, PA 16057, USA

[3]School of Geography and Remote Sensing Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing 210044, China

关键词: Exposure;    Vulnerability;    Flood disaster;    Spatio-temporal changes;    China;   

DOI  :  10.1016/j.accre.2015.03.002

来源: DOAJ

【 摘 要 】

A socio-economic data set on China's historical flood losses for the period 1984–2012 was compiled to analyze the exposed population, economy, and crop area as well as the vulnerabilities of the population and economy to floods. The results revealed that the exposed population was approximately 126 persons km−2 per year when taking China as a whole; in terms of the economy, potential losses due to floods were estimated to be approximately 1.49 million CN¥ km−2 and the crop area exposed to floods covered 153 million hm2 per year. China's total exposure to floods significantly increased over the analysis period. The areas that showed the higher exposure were mainly located along the east coast. The population's vulnerability to floods showed a significantly increasing trend, however, the economic vulnerability showed a decreasing trend. The populations and economies that were most vulnerable to floods were in Hunan, Anhui, Chongqing, Jiangxi, and Hubei provinces. The municipalities of Shanghai, Beijing, and Tianjin showed the lowest vulnerabilities to floods.

【 授权许可】

Unknown