改进密切值法在湖泊富营养化评价中的应用

Application of Modified Osculating Value Method in Evaluation of Lake Eutrophication

密切值法(Osculating Method)作为一种多目标优选方法,在水环境质量评价中具有一定的应用。经过改进,将各级营养级别作为评价样本,参与到湖泊水环境样本的矩阵中,引入目标差值率对初始矩阵进行规范化处理,并应用层次分析法,对各评价指标的贡献程度加以确定。将改进后的密切值法应用于湖泊富营养化评价中。经实例分析表明,该方法概念清晰、计算简便实用,保证了湖泊水环境质量评价的科学性,能较好地反映湖泊水环境质量的优劣,并使其与各级营养级别的关系一目了然。

Osculating Method as a multi - objective optimization methods is used to evaluate water quality in certain applications. Through improved , nutrition levels as all levels of evaluation samples in part of the lake water sample matrices. Introduction of the target dispersion rate on the initial matrix standardization, and application analytic hierarchy process method to determine the contribution the evaluation of the extent. The modified osculating value method is applied in the lake eutrophication. The case analysis shows that the method has clear conception and the calculation is simple and practical. It can reflect the relative state of the water environment quantity well. Guarantee the scientific assessment of environmental quality in the lake water, and the environment would better reflect the quality of the lake water and to make it clear at all levels and the relationship between nutrient levels.