Abstract:Disturbance,as a widespread natural phenomenon,is considered as a discrete event occurred in natural ecosystems at various spatial and temporal scales.The occurrence of disturbance directly influence the structure,function and dynamics of ecosystem.The following characteristics are considered as the common nature of disturbance:①Ecological impacts of disturbance is relative for different ecosystems;②The impacts of disturbance is changeable at different spatial scales;③Disturbance can regulate the ecological...