改进的灰色关联分析法在渔业水质评价中的应用
Journal of Hebei United university natural sclence edition（2017）
Abstract
水体质量对渔业的产量和质量有着显著影响.为使水质评价结果更加准确,采用改进的灰色关联分析法对池塘的水质进行评价.在确定指标权重时,采用序关系分析法,避免了采用超标倍数法在计算权重时因某项参数超标而使各综合指标评价偏高的缺点,充分考虑到养殖专家的实际养殖经验,使各指标权重更科学合理,水质关联值更为精准,从而使水质等级更符合事实.以某渔业养殖场4个池塘的水质监测数据为计算实例,选取pH、透明度、总氮、溶氧、COD 5个指标,运用该模型计算的结果与实际情况更吻合.
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Key words
order relation analysis,grey correlation,water quality evaluation,comprehensive incidence matrix
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