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水环境治理工程环境经济损益评价模型及应用

     

摘要

In order to measure the environmental and economic profits of the water environment treatment project,the environmental econom-ic profit and loss analysis methods were applied to the benefit evaluation of water environment treatment project.On the basis of studying envi-ronmental economic profit and loss analysis methods, the cost method and market value method were selected and the evaluation models of water quality improvement benefit based on two methods were established respectively. Taking the Tail Water Diversion in East Route of Wa-ter Diversion Project from South to North in Jiangsu Province as an example,the benefit of the project is mainly to reduce the amount of pol-lutants discharged into the main line and ensure the water quality of the Water Diversion Project.The results show that the water quality bene-fit of the Tail Water Diversion is 219.0390 million Yuan RMB(from the trial operation of the project to June 2016). The quantitative evalua-tion of environmental economic benefits of environmental treatment project plays an important role in expanding the theory and method of envi-ronmental impact assessment,constructing water resources balance sheet and evaluating the implementation and management of the river chief system.%为了全面衡量水环境治理工程产生的环境经济效益,尝试将环境经济损益方法应用于水环境治理工程效益评价.在总结环境经济损益计量方法的基础上,选择成本法和市场价值法分别建立水环境治理工程水质改善效益评价模型.以江苏省南水北调东线尾水导流工程为例,通过分析可知,该工程的环境经济损益主要为削减进入南水北调输水干线的污染物、降低排入干线污染物的含量、保障输水干线水质.研究结果表明,从工程试运行至2016年6月,该工程改善南水北调输水干线水质效益达到21903.90万元.该成果对于拓展环境影响评价理论与方法的应用、支撑水资源资产负债表的构建以及实施河长制管理评价都具有重要的实践价值.

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