论文部分内容阅读
对我国南部4个土类10个样品进行研究。结果表明,酸性土壤中钒和镍的含量多少主要取决于成土母质类型,通常,玄武岩发育的土壤中,钒和镍的含量较高.而由花岗岩发育的土壤,其钒和镍的含量相对较低。一般来说,在土壤全钒和全镍含量较高时,可提取态的钒和镍的含量相应也较高。土壤全铁含量,粘粒含量与土壤全钒和全镍含量间有显著的正相关,钒和镍在土壤中的空间分异特征呈现三种类型,即表层聚积型,底层富集型和均匀分布型。
Ten soil samples from four soils in southern China were studied. The results show that the amount of vanadium and nickel in acid soils mainly depends on the types of soil parent materials. Generally, the contents of vanadium and nickel are higher in basalts. However, the soils developed from granite have a relatively low content of vanadium and nickel. In general, the content of extractable vanadium and nickel is correspondingly higher when the total vanadium and total nickel content of the soil is high. There was a significant positive correlation between soil total iron content, clay content and soil total vanadium and total nickel content. There were three types of spatial heterogeneity of vanadium and nickel in soils, ie, surface accumulation type, bottom enrichment type and uniform Distributed.