农作物秸秆基础特性的主成分分析

Principal Component Analysis on Basic Traits of Crops Straw

摘要: 为探明农作物秸秆工业分析成分、物理特性和元素组成等基础特性之间的相关关系，对5种农作物秸秆进行综合评价，采用水稻、玉米和棉花等作物秸秆为原料，测试了其基础特性数据，并进行主成分分析。结果表明，前4个主成分因子可解释农作物特性的84.29%，前4个主成分的贡献率分别为41.27%、21.73%、12.93%和8.36%。利用主成分分析结果可对水稻、玉米和棉花等作物秸秆样品进行简化的综合评价。

Abstract: In order to illustrate correlation among various basic traits such as industrial components，physical thermal characteristics and elements，and to make a comprehensive evaluation of different crops straw，principal component analysis were carried out，using rice，corn and cotton as raw materials.Results showed that the first four principal component factors could explain 84.29% of crop straw traits.Contribution rate of the first four principal components were 41.27%，21.73%，12.93% and 21.73% respectively.With results of principal component analysis，a comprehensive evaluation of rice，corn and cotton samples were established.