海河流域水环境退化经济损失定量分析

Quantitative analysis of economic loss for water environmental degradation of Haihe River Basin

采用流域水资源分区与水环境退化经济损失计算模型相结合的方法,对海河流域2005年水环境的退化程度及影响进行了分析,结果表明,海河流域水环境退化受水资源需求量、水资源价格、当年降水变差系数和水质类别等因素影响较大,水环境退化经济损失计算结果与海河流域现状基本吻合。提出了进一步做好我国流域水环境退化经济损失定量分析工作的措施:加强对水资源核算体系理论方法的研究,规范水环境统计的有关概念、数据产生渠道、统计方法和内容,实现各相关行业部门统计渠道的接口和数据共享。

The method of the basin water resources partitioning combined with the calculation model of economic loss for water environmental degradation was adopted to analyze the degree and effect of water environmental degradation of Haihe River Basin in 2005. The results indicate that the water environmental degradation of Haihe River Basin is greatly influenced by the demand of water resources, the price of water resources, the variation coefficient of rainfall in that year as well as the classification of water quality. The calculated results of the economic loss for water environmental degradation are in agreement with the present situation of Haihe River Basin. Some measures for the further quantitative analysis of economic loss for water environmental degradation in river basins in China were put forward: the strengthening of the researches on theories and methods of accounting system of water resources, the standardization of relevant conception of water environmental statistics, channels of data production, statistic methods and content, the realization of interfaces and data sharing of department-related statistic channels in relevant industry.