基于地表水环境质量标准的富营养化评价方法

目前富营养化评价方法众多。但各评价方法之间缺乏可比性，不利于湖泊富营养化的有效管理和治理。在对现有湖泊富营养化的评价方法进行分析、评价的基础上，提出了适合我国国情的基于GB3838--2002《地表水环境质量标准》的湖泊畜营养化评价方法。该方法是将水质评价和主要富营养化因子评价相结合的综合的富营养化评价方法，在巢湖西半湖等合肥市湖、库富营养化评价中应用表明：该方法不仅可以对不同湖、库的富营养化状况进行比较，而且可以对同一湖泊富营养化的时空变化进行分析，有利于对湖泊富营养化程度做出客观、合理的判断，进一步探讨湖泊富营养化成因．为治理富营养化提供全面、科学的决策依据。

Lake Eutrophication Evaluation Based on "Environmental Quality Standards for Surface Water"——the Case for Chaohu Lake

There are different kinds of method for the evaluation of lake＇s eutrophication. But the results from these evaluation methods can＇t be compared. And it is difficult to give a reasonable evaluation for the effective treatment and management of lake eutrophication. Through analyze and assessment the existing evaluation method,on the basis of ＂Environmental Quality Standards for Surface Water＂, this paper put forward a comprehensive evaluation method. This method combine water quality assessment and eutrophication index assessment. It has been applied in lakes and reservoirs evaluation in Hefei City（including western Chaohu lake）. The results show it can not only compare the eutrophication degree of different lakes, but also can analyze the spatial and temporal variation for a special lake. It is a reasonable evaluation method for lake eutrophication. It can be used to analyse the causes of eutrophication and provide scientific and overall base for decision-making.