摘要
主成分分析法是一种降维的多元统计分析方法,运用主成分分析法对水质进行评价,能够反映水质的综合状况。清原县农村饮用水汛期污染较为严重,针对汛期农村饮用水水质污染特征,选取具有代表性的14个采样点进行监测分析,以《生活饮用水卫生标准》(GB5749-2006)为标准,筛选出污染指标,然后采用主成分分析法对其水质(污染指标)进行综合评价。结果显示:清原县农村饮用水水质问题主要是微生物污染;大孤家镇采样点水质最差,其次是土口子,北三家采样点水质最好,评价结果与实际情况相一致;主成分分析法以较少的综合指标反映了实际情况,是一种切实可行的综合评价方法。
The principal component analysis is a dimension reduction and multivariate statistical analysis method. It can reflect a comprehensive water quality condition in the water quality evaluation. The drinking water pollution of rural life is severer in Qingyuan County in rainy seasons than in the dry seasons. The fourteen representative water samples are selected according to pollution charac- teristics of drinking water. Hygienic Standard for Drinking Water（GB5749-2006）is used to evaluate pollution. Then water quality is evaluated by using principal component analysis. The sampling point water quality is the poorest in Dagujia Town, and then Tukouzi Town. The sampling point water quality is the best in Beisanjia Town. Evaluation results are consistent with actual situations. The principal component analysis reflects the actual situation in the less comprehensive index and can supplements the defects of the single factor evaluation. It is a feasible evaluation method.
出处
《中国农村水利水电》
北大核心
2011年第11期139-141,145,共4页
China Rural Water and Hydropower
基金
国家科技重大专项"东北村镇地下饮用水安全保障适用技术研究与示范"课题(2008ZX07425-004)
关键词
主成分分析法
农村生活饮用水
水质评价
清原县
the principal component analysis
drinking water for rural life
water quality evaluation
Qingyuan County
