PROGRESS IN GEOGRAPHY ›› 2020, Vol. 39 ›› Issue (3): 420-432.doi: 10.18306/dlkxjz.2020.03.007

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Indirect economic losses of flood disaster based on an input-output model: A case study of Hubei Province

NING Siyu1, HUANG Jing1, WANG Zhiqiang1, WANG Huimin1,2,*()   

  1. 1.Management Science Institute, Hohai University, Nanjing 211100, China
    2.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China
  • Received:2019-02-02 Revised:2019-05-09 Online:2020-03-28 Published:2020-05-28
  • Contact: WANG Huimin
  • Supported by:
    National Natural Science Foundation of China(71601070);National Natural Science Foundation of China(91846203);National Natural Science Foundation of China(41877526)


Flood disasters cause both direct and indirect economic losses to industrial systems, and indirect economic losses may be much higher than direct economic losses. Studying indirect economic losses is of great significance for disaster risk reduction. Based on the input-output model, this study used the direct economic loss data of flood disasters in Hubei Province in 2016 to evaluate indirect economic losses under different flood water depth, from the perspective of sectorial interconnectedness. The results show that: 1) With the increase of flood water depth, direct economic losses and indirect economic losses increase accordingly. 2) For most industrial sectors, indirect economic losses caused by industrial interconnectedness are higher than direct economic losses. However, when flood water depth is shallow, some industrial sectors with more intensive fixed assets are more affected by flood disasters, resulting in higher direct economic losses. 3) The total indirect economic losses show a nonlinear relationship with the total direct economic losses, but with the same trend. When the flood water depth is greater than 2.093 m, indirect economic losses are about 1.15 times of direct economic losses.

Key words: flood disaster, indirect economic losses, flood water depth, input-output model, Hubei Province