| 基于主成分分析和熵值法的景观水水质评价 |
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| 引用本文： | 马建琴,郭晶晶,赵鹏. 基于主成分分析和熵值法的景观水水质评价[J]. 人民黄河, 2012, 0(3): 36-38 |
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| 作者姓名： | 马建琴 郭晶晶 赵鹏 |
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| 作者单位： | 华北水利水电学院;天津龙网科技有限公司 |
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| 基金项目： | 水利部“948”计划项目(201047);国家自然科学基金资助项目(41071025);河南省2007年骨干教师资助项目;华北水利水电学院高层次人才启动项目;河南省教育厅自然科学研究资助计划项目(2009A170004);河南省科技公关项目(092102310197) |
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| 摘 要： | 针对主成分分析法忽略数据离散程度的问题,提出把主成分分析和熵值法结合起来确定权重的方法,建立了水质评价模型,并采用该模型对郑州市景观水水质情况进行评价。与单独采用主成分分析和熵值法的评价结果相比,主成分分析和熵值法结合具有可行性与实用性,更适合景观用水水质评价。郑州市将中水用作景观水的实践总体来说效果不错,但在个别月份需对个别水质指标进行控制。
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| 关 键 词： | 水质评价 主成分分析 熵值法 景观水 郑州市 |
Evaluation of Landscape Water Quality Based on Principal Component Analysis and Information Entropy |
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| MA Jian-qin,GUO Jing-jing,ZHAO Peng. Evaluation of Landscape Water Quality Based on Principal Component Analysis and Information Entropy[J]. Yellow River, 2012, 0(3): 36-38 |
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| Authors: | MA Jian-qin GUO Jing-jing ZHAO Peng |
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| Affiliation: | 1(1.North China University of Water Resources and Electric Power,Zhengzhou 450011,China; 2.Tianjin Louwin Technologies Limited Company,Tianjin 300181,China) |
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| Abstract: | In order to solve the problem that principal component analysis ignores the degree of data dispersion,a method which combining principal component analysis and information entropy had been developed to obtain the weights of indicators.The water quality evaluation model was established and the quality of landscape water in Zhengzhou is evaluated.This method is more proper to water quality evaluation on landscape water comparing to principal component analysis or information entropy,and the results prove that the method is feasible and practical.Using recycled water as landscape water in Zhengzhou has sound effects,but in some months some water quality indexes need to be controlled. |
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| Keywords: | water quality evaluation principal component analysis information entropy landscape water Zhengzhou City |
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