| 主成分分析法用于环境质量评价的探讨 |
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| 引用本文： | 刘臣辉,吕信红,范海燕.主成分分析法用于环境质量评价的探讨[J].环境科学与管理,2011,36(3):183-186. |
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| 作者姓名： | 刘臣辉 吕信红 范海燕 |
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| 作者单位： | 扬州大学环境科学与工程学院,江苏扬州,225000 |
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| 摘 要： | 文章将主成分分析法用于某河流水质评价,得出该河流历年水质变化趋势,但得到的水质评价等级却与实际情况不符。通过对主成分分析法原理进行研究,得出两个结论:主成分分析法可用于比较不同时间或不同地点的环境质量优劣;主成分分析法不能评价出环境质量等级。这主要是由主成分分析法的本质特点所决定。
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| 关 键 词： | 主成分分析法 环境质量评价 主成分 |
Study of Applying Principal Component Analysis to Environmental Quality Assessment |
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| Liu Chenhui,Lv Xinhong,Fan Haiyan.Study of Applying Principal Component Analysis to Environmental Quality Assessment[J].Environmental Science and Management,2011,36(3):183-186. |
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| Authors: | Liu Chenhui Lv Xinhong Fan Haiyan |
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| Institution: | (Yangzhou University,Department of Environmental Science and Engineering, Yangzhou 225000, China) |
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| Abstract: | This paper applies principal component analysis to water quality assessment, we obtain the water quality changes, but the received water quality evaluation grades are inconsistent with the actual situation. Though studying the principle of principal component analysis, we conclude that principal component analysis can be used to compare environmental quality at different times or in different locations ; and principal component analysis could not evaluate the grade of environmental quality. |
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| Keywords: | principal component analysis environmental quality evaluation the principal component |
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