With the awareness of environmental importance, the economic values of environmental resources are more and more needed to be accounted for in the cost-benefits analysis (CBA) of policies or projects.

随着环境意识的觉醒，对政策或项目的成本—效益分析(CBA)越来越需要将环境资源的价值考虑在内，这使得对环境资源进行价值评估的要求越来越迫切。

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