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Model for the Assessment of Seawater Environmental Quality Based on Multiobjective Variable Fuzzy Set Theory

机译：基于多目标变量模糊集理论的海水环境质量评价模型

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摘要

With the rapid development of marine economy industry, the activities for exploring and exploiting the marine resources are increasing, and there are more and more marine construction projects, which contribute to the growing trend of eutrophication and frequent occurrence of red tide. Thus, seawater quality has become the topic which the people generally cared about. The seawater quality evaluation could be considered as an analysis process which combined the evaluation indexes with certainty and evaluation factors with uncertainty and its changes. This paper built a model for the assessment of seawater environmental quality based on the multiobjective variable fuzzy set theory (VFEM). The Qingdao marine dumping site in China is taken as an evaluation example. Through the quantitative research of water-quality data from 2004 to 2008, the model is more reliable than other traditional methods, in which uncertainty and ambiguity of the seawater quality evaluation are considered, and trade the stable results as the final results of seawater quality evaluation, which effectively solved the impact of the fuzzy boundary of evaluation standard and monitoring error, is more suitable for evaluation of a multi-index, multilevel, and nonlinear marine environment system and has been proved to be an effective tool for seawater quality evaluation.
机译：随着海洋经济产业的快速发展，海洋资源的开发和利用活动日益增多，海洋建设项目也越来越多，这导致了富营养化的趋势和赤潮的频繁发生。因此，海水质量已成为人们普遍关心的话题。海水质量评价可以看作是将确定性评价指标与不确定性及其变化因素综合起来的分析过程。本文建立了基于多目标变量模糊集理论（VFEM）的海水环境质量评价模型。以中国青岛的海上倾倒场为例。通过对2004年至2008年水质数据的定量研究，该模型比其他传统方法更可靠，该方法考虑了海水质量评估的不确定性和不确定性，并将稳定的结果作为海水质量评估的最终结果。它有效地解决了评价标准的模糊边界和监测误差的影响，更适合于多指标，多层次，非线性的海洋环境系统的评价，被证明是评价海水质量的有效工具。

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