灾害系统视角下的灾害耦合效应探讨OACSTPCD

The coupling effect of disasters is a focus issue in the field of disaster risk science,which is closely related to complex disaster events.Firstly,we elaborate on the connotation of coupling from the perspective of ety-mology,propose the concept of disaster coupling effect,compare the differences between disaster coupling and dis-aster superposition,and elaborate on the overall,orderly,dynamic,and purposeful characteristics of disaster cou-pling effect.Secondly,from the perspective of disaster system,the relationship between the structural and function-al system of disaster system,as well as their evolutionary processes,and the coupling effect of disasters is ana-lyzed.It is proposed that the coupling effect of disasters has the coupling of disaster formation factors and disaster e-volution processes,and the inherent characteristics of the two types of coupling and their interaction are explored.Thirdly,starting from the perspective of complex disaster events,we explore the relationship between disaster clus-ters,disaster chains,disaster compound and the coupling effect of disasters.It is proposed that the coupling of dis-aster evolution processes is consistent with the disaster chain process from the perspective of disaster evolution net-works,and the coupling of disaster formation factors is consistent with the generalized disaster compound.Finally,we propose key points for strengthening the research and practice of disaster coupling effects.