Water Environment Quality Fuzzy Quality Synthetic Evaluation Method Study

Water Quality Assessment of water resources protection is the basis of work and an important means. Water Quality Assessment by the content classification, including evaluation of organic water pollution assessment, evaluation of eutrophication, environmental quality assessment of sediment and water ecosystems, such as evaluation of the evaluation method is divided into one-way and comprehensive evaluation of evaluation methods. One, the one-evaluation methods do not meet water quality of internal unity, and the comprehensive evaluation method, all along, environmental workers have done a lot of research and study.In this paper, which is based on fuzzy theory of multi-level association fuzzy comprehensive water environment evaluation methods. Papers in the comprehensive analysis of the existing water quality evaluation method on the basis of the proposed water quality evaluation of the multi-level association fuzzy comprehensive evaluation methods. Fuzzy comprehensive approach to the evaluation method as the core, the combination of multi-level relevance theory, the water quality evaluation of the large number of complex phenomena and the interaction of many factors quantitative treatment, evaluation of the quality of the water levels in the analysis of the data cited at the , Based on monitoring of the main ingredients for information - enabling factor analysis of the various factors to determine the weight to avoid the law empowers the experts score the subjective differences, making empower more reasonable, objective and comparable at the same time, using the weighted Average principles of fuzzy comprehensive evaluation results of the analysis, under the principle of avoiding the greatest possible loss of information, but also a number of water samples so that the evaluation results can be compared to sort. Papers to the lower reaches of the Dadu River Hydropower Station has been built river as an example, a multi-level association fuzzy comprehensive evaluation of its method of water quality and nutritious conditions to evaluate the situation, verify that the method is practical.