熵权属性识别模型在水库富营养化评价中的应用

Application of entropy attribute recognition model in reservoir eutrophication evaluation

水库富营养化评价中对各个指标进行权重分配时会遇到一定的人为主观因素的影响,因此本算例对各指标权重分配采用熵权法。选取广东省内的十座大型水库,针对水库富营养化的问题选取六个指标并结合属性识别法建立熵权属性识别模型。通过将计算得出的结果与这十座水库实际富营养化的情况进行比较,发现计算结果与实际情况基本一致,由此可知熵权属性识别模型适用于水库富营养化程度的评价,同时该模型简单,具有一定的推广性。

Subjective factors can affect the weight distribution for each index in the evaluation of reservoir eutrophication,therefore entropy method was used to distribute the weight of each index.In this paper,six indexes in the evaluation of reservoir eutrophication in ten large reservoirs of Guangdong Province were selected,and the attribute recognition method was used to develop the entropy attribute recognition model.The model results agreed with the actual eutrophication conditions in the ten reservoirs,which suggested that the entropy attribute recognition model is applicable in the evaluation of reservoir eutrophication.