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利用太原市数字化土壤资源管理系统,对2010年和2005年太原市土壤养分数据进行了对比分析,得出全市7个县(市、区)两年的土壤养分总体变化不大、各项均值变化都小于5%、标准差和变异系数变化不大的结论,通过相关性分析,确定其r范围在0.803～0.991之间,线性关系显著,可为制定更新土壤资源管理系统数据库的周期提供一定的科学依据。
By using Taiyuan digital soil resource management system, the soil nutrient data of Taiyuan in 2010 and 2005 were compared and analyzed. The results showed that the overall changes of soil nutrients in seven cities (cities and districts) Less than 5%, and the standard deviation and coefficient of variation had little change. According to the correlation analysis, the range of r was 0.803 ~ 0.991 and the linear relationship was significant. It could provide a certain period for formulating and updating the database of soil resource management system Scientific basis.