| 主成分分析法在太湖水质富营养化评价中的应用 |
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| 引用本文： | 姚焕玫,黄仁涛,刘洋,蒋文凯.主成分分析法在太湖水质富营养化评价中的应用[J].桂林工学院学报,2005,25(2):248-251. |
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| 作者姓名： | 姚焕玫 黄仁涛 刘洋 蒋文凯 |
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| 作者单位： | 1. 武汉大学,资源与环境科学学院,武汉,430079
2. 武汉大学,土木建筑工程学院,武汉,430079 |
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| 基金项目： | 国家自然科学基金资助项目(40201020) |
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| 摘 要： | 运用主成分分析法对太湖水质的富营养化情况进行了评价．主成分分析法可以少数的综合变量取代原有的多维变量来进行有针对性的定量化评价，在评价过程中，由第1和第2主成分组成的综合主成分方差贡献率达96．24％；通过VB调用MATLAB可以完成评价过程中所有的运算．对1987和1994年太湖中各测点的水质富营养化状态进行定性评价，同时还对各监测点的水质进行了横向和纵向比较，整个评价过程简单易行．
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| 关 键 词： | 水质富营养化评价 主成分分析 太湖 |
| 文章编号： | 1006-544X(2005)02-0248-04 |
| 修稿时间： | 2004年7月9日 |
Principal Component Analysis of Water High Eutrophication Evaluation in Taihu Lake |
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| YAO Huan-mei,HUANG Ren-tao,LIU Yang,JIANG Wen-kai.Principal Component Analysis of Water High Eutrophication Evaluation in Taihu Lake[J].Journal of Guilin University of Technology,2005,25(2):248-251. |
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| Authors: | YAO Huan-mei HUANG Ren-tao LIU Yang JIANG Wen-kai |
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| Abstract: | The principal component analysis is applicd to lake pollution evaluation of the water high entrophication in Taihu Lake.It can obviously simplify data structure for original multidimensional comprehensive variable and minimize the loss of original data information.The total contributing rate of the comprehensive pollution principal component, which is made up of the first principal component and the second principal component,will be 95%. Using MATLAB in VB, computer can accomplish the whole process. High eutrophication states supervised in the ten different places of Tai lake in 1987 and in 1994 are separately qualitative evaluated. At the same time, water qualities of Taihu Lake in different places and at different times are compared. This kind of quantitative evaluation is convenient and can be widely applied. |
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| Keywords: | water quality eutrophication evaluation principal component analysis Taihu Lake |
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