In this paper, the non-linear relationship between eutrophication factors is not considered for the time being. The main purpose of this paper is to evaluate and analyze the water eutrophication based on the sampling values of the impact factors selected according to the literature and practical experience, and improve the method of obtaining the weight coefficient in order to improve the objectivity of the weight coefficient, and then improve the evaluation results Accuracy and feasibility. Of course, all kinds of evaluation methods are more sample data, the more accurate the evaluation results. In the case of the same sampling data, the results obtained by the evaluation method proposed in this paper are more in line with the objective reality and have better feasibility. In my other articles, I have studied the effect of nonlinear relationship between impact factors on Chlorophyll-a in water body; in the follow-up research work, I will also adopt your suggestions to carry out the research on the interaction between the nonlinear relationship between the impact factors and water eutrophication, and maybe get some interesting results, so as to deepen our understanding of the mechanism and mechanism of water eutrophication To better guide the related work of water quality monitoring and environmental protection.<br>
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