近海沉积物环境质量综合评价的熵权属性识别模型

Attribute Recognition Model With Entropy Weight for Evaluating Marine Sediment Quality

叙述了基于熵权的属性识别模型的建立过程,并将其应用于连云港近海表层沉积物环境质量的综合评价中。评价结果表明,连云港近海表层沉积物的环境质量总体较好,且田湾核电站海区的沉积物环境质量要优于其它海区,而连云港港口区的沉积物环境质量相对较差。熵权属性识别模型不仅能对评价对象进行准确合理的识别分类,还可对其进行打分排序,提高了评价结果的分辨率,为环保决策提供了定量分析的依据,具有一定的应用价值。

An attribute recognition model with entropy weight has been introduced here, and then the model is applied to evaluate the surface sediment quality in Lianyungang offshore area. The results show that sediment quality in the studied area remains good as a whole, particularly in the area nearby Tianwan Nu- clear Power Station. However, its enviromental quality performans relatively worse in the basin of Li anyungang Port. The model, with clear physical meaning and objective determining weights, can not only recognize and classify the evaluation objects, but also score and sort them, which would be helpful to im- prove the evaluation results and provide more reliable details for environmental management and decision- making.