通过相关性数据处理和模式识别的系统聚类方法，对影响土壤腐蚀性的各种因素之间的相互关系进行了分析讨论．相关系数矩阵和聚类谱系图两者都表明有些因素之间的相关性很大，有些即相对独立．系统聚类的结果将影响土壤腐蚀性的２２项因素在相关系数大于０．５的情况下聚合成明显的７类，这将为今后土壤腐蚀性研究中因素选取和等级评判等提供依据．
By considering the correlation of the data and using the clustering technique of pattern recognition,the relationship among various corrosive factors of soil has been analyzed. Both the matrix of correlation coefficients and the pedigree of factor clusters show that some factors are correlated closely to each other;while others are relatively independent. The correlation coefficients are very high between the parameters such as volume density and void volume, conductivity and total salts, wier capacity and air capacity etc.However, NO, redox potential,pipe/soil potential etc. indicate much lower correlation coefficients with other parameters. The results of this paper may have certain significance for the further study on soil corrosivity.
参考文献
| [1] | BaeckmannWV,SchwenkW．胡士信等译．阴极保护手册,第1版．北京:人民邮电出版社,1990,612全国土壤腐蚀试验网站．材料土壤腐蚀试验方法,第1版．北京:科学出版社,1990．3华东输油管理局科研所．土壤腐蚀环境调查报告,内部资料 |
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