试论非工程措施的经济评价方法

Discussion on the Method of Economic Assessment for Non-Engineering Measure

在论述开辟分洪区和采用洪水保险等非工程措施的经济评价体系时,试采用经济净现值、经济净现值率、经济内部回收率等指标和频率法来计算多年平均洪灾损失,并根据效益——费用关系,推求非工程措施的经济效益。在论述非工程措施与工程措施优化选择时,提出了防洪最优方案选择的初步见解。

In stating the economic assessment system of the non-engineering measure Such as open flood plain and provide insurance against floods, the writer try using ENPV, ENPVR, economic rate of internal return and freguency analysis to calculate average long-term loss of flood damage. According to the relation of cost-benefit, the economic efficency for the non-engineering measure has been found. In discussing the optimal choice of the non-engineering and engineering measures, the preliminary opinions for the optimum chocie plan of flood control are given.