防洪效益计算方法探讨

简述了防洪效益的特点，对现有防洪效益计算方法进行了较深入的探讨。研究表明，如能选出代表性较好县有一定长度的典型系列年，年系列法是正确计算防洪效益的有效方法；频率法的很大不足是难以采用动态方法计算多年平均防洪效益，它只能给出防洪工程的静态效益指标；最优等效替代措施法、保险费法及稳定生产增长法不能作为计算防洪效益的合理可行方法。文中还对正确计算防洪效益的几个关键问题（包括采用什么价格、动态与静态方法的

Economic Benefit Analysis of Hydrometric Station Network

This paper outlines the characteristics of flood control benefits and describes,in more detail.the prevailing calculation methods.As studies sugest,the method based on chronical series is an effective approach provided typical series of tears with considerable duration are available.The major shortcoming of the frequency method is that it is hard to work out the long-term average benefit with dynamic calculations,though it does provide static indices of flood control works.The methods based on optimal and equivalent alternatives,assurance premium and stable production growth cannot be regarded as rational and feasible methods for calculating flood control benefits.while addressing some of the key issues involved in proper calculation of flood control benefits. such as identification of price,selection of dynamic verse static methods. and growth rate of flood control benefits,this paper also includes some improvements and provides a formula for converting the annual benefits against different economic verse price levels.