Effects of organization factors on flood-related Natechs in urban areas of China

Natechs in urban areas present special challenge because both natural hazards and technological hazards are included in them. In order to discuss organization factors in flood-related Natechs, a Bayesian network was designed to analyze the interaction between multiple subsystems, in which twenty-two variables were represented by nine root nodes, ten intermediary nodes and three leaf nodes. Seventeen cases were retrieved from “Thematic Database from Human–earth System.” The role of organization factors was acquired with a series of methods of probability analysis, and then, two intervention patterns of government and social emergency organizations were analyzed. Results: Government emergency agencies have strong professional superiority to implement rescuing action, NGO emergency organizations have unique social network superiority to allocate living materials, and information source of media and government organizations should be emphasized concurrently.