可溶态稀土含量与土壤理化性状的关系

The Relationship between the Content of Soluble Lanthanon and the Characteristics of Soils

以河北省土壤可溶态稀土含量调查资料为依据,分析了可溶态稀土含量与土壤理化性状的关系。结果表明,土壤可溶态稀土含量,随土壤质地由砂变粘而升高,与土壤碳酸钙含量的关系为y=(2.717 05+6.228 59x)/x,与土壤酸碱度的关系为y=0.912xe-0.202 25x,与土壤代换量的关系为y=0.334+5.338 logx。

Based on the investigation data of the content of soluble lanthanon in the soils. We analysed the content of soluble lanthanon and the characteristic of soils. The results showed that the content of soluble lanthanon increased along with the increase of soil glueyness; the correlativity between the content of soluble lanthanon and the increase of calcium carbonate was y = （2. 717 05 ＋6. 228 59 x）/x; the correlativity between the content of soluble lanthanon and acidity, alkalinity of soil was y 0. 961 2 xe^-0.202 25 x ; the correlativity between the content of soluble lanthanon and soil exchange capacity.