摘要
本文较系统地研究了我国一些主要类型土壤中的全钒和可溶态钒的含量，剖面分布特征以及地带性分布规律，并对影响其含量分布和化学变化过程的一些主要因素进行了分析，结果表明，土壤中的全钒含量平均为８６μｇ／ｇ，南部地区土壤全钒含量多高于平均值，北部地区土壤全钒量低于平均值，中部地区土壤全钒量与平均值接近；在剖面分布中，有底层富集型、表层聚积型和均匀型三种类型。影响土壤全钒量和可溶态钒含量的主要因素是土壤全铁含量，而决定全钒量多少的是土壤母质。土壤粘粒、全锰含量、有机质含量等对全钒和可溶态钒含量的影响相对较小。土壤ｐＨ值、无定形铁含量等对可溶态钒在土壤中的化学吸附和迁移转化过程等都有重要的影响。
he present
paper deals with a systematical investigation of vanadium contentsin main soil types of China.
The results are summarized as follows:1. The total vanadium content of the main soils in China
ranged from 9 to266 μg/g, averaging 86μg/g. Parent materials was the decisive factor
affecting thetotal vanadium contents. For instance, in red earths different in the
parentmaterials, the total vanadium content was in the sequence of the red earth derivedfrom
basalt > that from phyllite > that from Q_2 red clay > that from granite > thatfrom limestone >
that from Tertiary red sandstone > that from rhyolite.2. In general, total vanadium contents and
soluble vanadium contents of soilProfiles were not consistent. It is revealed that they could be
accumulated or enri-ched in surface soil or subsoil, and in some conditions, they could be
distributed inbomogeneous state.3. Total iron content of soil was one of the inost important
factors affectingdistribution and mobilization of vanadium in soils. Vanadium in soils as largely
co-mbined closely with iron oxides, except amorphous iron oxides. The soluble vana-dium as
combined with amorphous iron oxides in soils.
出处
《土壤学报》
CAS
CSCD
北大核心
1994年第1期61-67,共7页
Acta Pedologica Sinica
关键词
钒
含量
分布
可溶态钒
土壤
Vanadium content, Distribution,
Soluble vanadium
