摘要
根据８０个土壤剖面１３种微量元素及有关理化参数实测结果，研究了天津地区土壤中微量元素含量的纵向分异，结果表明，天津土壤中绝大多数微量元素含量高于全国平均含量，由于淋溶较弱，发育时间较短，各微量元素含量土壤纵向的分异不明显。
Contents of 13 trace metallic elements in the soil collected from 80 locations were measured in TianjinArea. The results showed that the concentrations of most of these metals are higher than the nationwide average.Mainlydue to weak leaching, the contents distributed less evenly along the soil profile. Compared with the soil from the agricultUral area with less human activity, the contents of these metals, especially mercury, in the soil from the near-urban areaincreased markedly. The contents of these metals in the soils derived from alluvial parent materials are 1-1.5 bines higherthan those derived from residual parent material. Due to the parent material of the plain area is primarily from the nearbymountain area, separation based on particle size may be the major reason for this difference. The results of a geostatisticalanalysis indicates that the parent material is the key factor controlling the distribution of these metals; and anthropogenicfactors, to some extent, may also play a role in the distribution.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
1999年第3期226-229,共4页
China Environmental Science
基金
国家杰出青年基金!49525102
