中阳县坝地土壤微量元素的分布特征研究

为了研究中阳洪水沟坝地土壤有效态微量元素Cu、Mn、Fe、Zn的垂直变异性与水平变异性分布特征,在中阳洪水沟11号坝地采集不同部位不同深度的土壤样品,测定其有效Cu、Mn、Fe、Zn含量。结果表明:坝地土壤微量元素总体上比较丰富,特别是有效态Mn的含量较高,有效Zn含量较低;从剖面层次来看,土壤有效态Cu、Zn随土壤深度的增加呈现出一定的变异性,属于中等变异性,Mn、Fe属于弱变异性;同一坝地不同部位之间,有效铜变属于高度变异性,有效态Mn、Fe、Zn属于中等变异性。该研究为洪水沟坝地微肥的施用提供了一定的理论依据。

The Distribution Research on Trace Elements of Dams Soil in Zhongyang

This paper aims at studing the soil microelement Cu,Mn,Fe,Zn levels of the vertical variability and distribution of variability in Zhongyang dam.Soil sample of different parts of different depth in 11th dam of Zhongyang flood ditch was collected,and the content of available Cu,Zn,Fe,Mn were determined.The results showed that dam soil were rich in trace elements in the whole,especially the exchangeable Mn was higher,the effective Zn content was lower.From the profile angle,soil available Cu,Zn increased with soil depth showed some variability,and were at a moderate variability,and Fe and Mn belonged to weak variability.The same dam in different sites,effective copper was the most variable nutrient,effective Mn,Zn and Fe were moderate variability.This study can provide the theoretical basis for applicating microferticizer in flood ditch dam area.