引入灰色系统理论的关联分析方法,对吕梁地区13个县67个土样的微量元素分析数据进行分析比较.给出数据列表;对各数据列做均值化处理;计算关联系数;求解关联度;得出关联序,进行关联分析.结果表明,土壤有效态微量元素与土壤有机质、土壤微量元素全量关系密切,而与caco_3和全磷量关系疏远;有效态微量元素含量与各土壤性质之间关联程度不尽相同;应用关联分析方法是可行的. This paper introduces the gray system theory correlation analysis method to analyze and compare the trace element analysis data of 67 soil samples from 13 counties in Luliang region, gives the data list, averages the data series, calculates the correlation coefficient, solves the correlation degree, The results showed that soil available trace elements were closely related to total organic matter and soil trace elements in soil, but not to caco_3 and total phosphorus, and the relationship between available trace elements and soil properties The degree of different; the application of correlation analysis method is feasible.