Based the research about ecological risk theory,the model of EVR has been established with use of VaR which is a very popular risk management model in international market. EVR is a new and useful risk management in regional ecosystem.

• 结合当前国际上流行的 Va R风险管理模型 ；在生态风险理论有关研究的基础上 ；建立了一类新颖而实用的区域生态系统风险管理模型 - EVR.