修正Logistics模型在水污染经济损失计算中的应用

Modification of Logistics Model Parameter and Its Application in Water Pollution Economic Loss Calculation

传统的Logistic模型在湖泊水污染经济损失计算上存在较大的偏差。通过对Logistic模型参数A、B值的修正,提高了TN、TP在模型计算中的所占比重。将修正前后的模型运用于邛海的水污染经济损失估算中,并将结果与邛海多年的水质综合污染指数的变化趋势进行比较。计算结果表明,修正后的Logistic模型计算的邛海水污染经济损失更符合邛海水污染多年的变化情况。修正后的Logistic模型可推广应用于其他湖泊的水污染经济损失计算中。

Traditional Logistic model has great deviation in economy loss calculation of lake water pollution.Through modified the parameters A,B of Logistic model,the weight values of TN and TP are increased.The traditional and modified Logistic models are applied in the economy loss calculation of Qionghai lake water pollution,and the results are compared with the change trend of comprehensive pollution indexes of Qionghai in recent years.The results indicate that the modified Logistic model is more suitable to the variation situation of Qionghai water pollution in recent years.The modified Logistic model can be applied to the economy loss calculation of water pollution for other lakes.