根据土壤颗粒组成推算土壤中微量元素的含量

To Calculate the Content of Soil Trace Element According to the Size of Grain in Soil

本文对山西２５５个土壤样品（Ａ层）中的１２种微量元素含量与土壤颗粒（１．０～０．０１ｍｍ和０．０１～０．００１ｍｍ）含量分别进行相关分析，结果表明，上述绝大多数元素的含量与土壤颗粒含量之间呈显著相关性。同时将１２种元素的含量分别与上述两组土壤颗粒含量进行回归分析，得出各元素的推算模型。以此模型，即根据１．０～０．０１ｍｍ或０．０１～０．００１ｍｍ土壤颗粒含量，推算出土壤元素的含量。经验证，其推算结果与元素的实测值基本一致。

The relationship between content of 12 trace elements in 255 soil samples(A-layer)and size of grain in soil(1.0～0.01 mm and 0.01～0.001 mm)of Shanxi province are deter-mined by correlation analysis.It shows that the contents of trace elements are markedly cor-related with size of grain in soil.The calculation models for every element are established,also with regression analysis,according to this model,the contents can be calculated fromthe content of grain size in soil of 1.0～0.01 mm or 0.01～0.001 mm.The calculation re-sults are consistent with those of the experiment.