摘要
叙述了主成分分析的原理及其在污灌区土壤中的应用,并对阜新市东梁桥污灌区土壤中的重金属含量进行了分析研究。首先在研究区内选择10个采样点,并对其表层土分别采样,进行Cr、Ni、Pb、Cu、Zn、Cd等重金属分析,识别出主要污染因子,并对1~#和4~#进行剖面采样,共采集剖面样品8个,进而采用主成分分析法对该地区的重金属数据进行分析,确定出主成分的个数,为东梁桥污灌区进行重金属污染分析减轻了工作量,并且获得了选择最佳变量的效果。
The principle of the principal component analysis and its application in the soil of sewage irrigation region are expounded briefly,and analyze the heavy metal in the soil of the sewage irrigation region of Dongliangqiao in Fuxin is analyzed.Firstly,authors chose 10 sampling points in the area,sampled from the surface layer,analyzed the heavy metal including Cr,Ni,Pb,Cu,Zn,Cd and so on,recognized the main pollution factor,and sampled from 8 points in section1~# and 4~#,then used the principal component analysis method to analyze the data of heavy metal in the area,determined the principal components,reduces the work load when analyzing the heavy metal pollution in the sewage irrigation region of Dongliangqiao,and the effect of choosing the best variable has been obtained.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2007年第S2期252-254,共3页
Journal of Liaoning Technical University (Natural Science)
关键词
重金属
主成分分析污灌区
heavy metal
principal component analysis
sewage irrigation region
