本文研究了地震灾害的四大指标一频率、死亡、受灾人数、直接经济损失。
The four indicators, frequency, fatalities, sufferers and direct economic losses, measuring earthquake disaster have been studied in this paper.
在分析森林生态系统所发挥的功能与效益的基础上，提出了森林病虫害灾害经济损失评估的指标体系。
According to the main functions and benefits of forestry ecological system, the index system of the economic losses of forest pest disaster evaluation was determined.
讨论了灾害损失的构成要素以及灾害损失定量评估的指标体系；
The key elements and index system for quantitative assessment of disaster losses are analyzed and discussed.
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