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利用主成分分析法和SPSS软件对膜下滴灌不同年限棉田土壤表层盐渍化程度进行了评价和分析。结果表明:利用主成分分析法可以有效地识别影响土壤表层盐渍化的主要成分,揭示土壤盐渍化影响离子的相互关系;以石河子121团实验地化验结果为依据,利用主成分分析法进行了分析,最后得出了该地块以氯化物-硫酸盐为主,为土壤盐渍化评价的定量化研究提供了依据,从而说明主成成分分析法在土壤盐溃化的评价中是切实可行的。
Principal component analysis and SPSS software were used to evaluate and analyze the degree of soil salinization in different years of drip irrigation under cotton field. The results showed that principal component analysis could effectively identify the main components that affect soil salinization and reveal the relationship between soil salinization affected ions. Based on the experimental results of Shihezi 121, the results were analyzed by principal component analysis Finally, it is concluded that the chlorite-sulphate is the main part of this plot, which provides the basis for the quantitative research on the evaluation of soil salinization, which shows that the principal component analysis is practical in the evaluation of soil salinization feasible.