广义灾害、灾害链及其防治探讨

探讨了“广义灾害”提出的必要性，给出了它的定义。讨论了广义灾害，灾害、祸和灾害链的分类，共性和个性，以及它们在事物和人类发展过程中的作用，提出了广义灾害、灾害链的结构，破坏作用、直接损失量，放大作用和概念模型或数学模型，简略地讨论了防治灾害的指导原则和战略策略等问题。

Generalized disaster, disaster chain and their prevention and control

The necessity to create a concept for generalized disaster is approached and its definition is given. The classification and general and specific characters of ge-neralized disaster, disaster, man-made disaster and disaster chain a nd their roles in the development of things and mankind are discussed. The conc e ptive and mathematical models of structure, damage effect, direct loss and ampli fication effect of generalized disaster and disaster chain are developed. The g uiding principles and strategy of disaster prevention and control are proposed.