期刊论文

中文

生态环境学报

1674-5906

2007

16

3

807-811

10.16258/j.cnki.1674-5906.2007.03.020

国家自然科学基金项目(20677080)；

本校为其他机构

调查湘南某铅锌矿区周围的菜园土和水稻土Pb、Cd、Cu和Zn的形态分布及其生物活性和迁移性.结果表明:两种土壤中Pb、Cd、Cu和Zn的总量分别超过国家土壤环境质量相应的标准.运用Tessier连续提取法研究发现,土壤中Pb、Cd、Cu和Zn的各形态含量之和与其总量非常的接近,其中菜园土Pb的提取率为96.3%,Cd的为94.1%,Cu的为93.4%和Zn的为91.7%;水稻土Pb的为97.6%,Cd的为92.0%,Cu的为92.1%和Zn的为91.7%,表明该形态分析方法的结果是合理的.土壤中Pb、Cd、Cu和Zn各形态的分布存在很大的差别,残渣态是主要形态,其中Pb的含量占60.7%～58.2%,Cd 的是50.4%～59.2%,Cu的是 37.3%～53.4%,Zn的是 54.9%～46.9%,而交...

Fraction distributions, availabilities and mobilities of Pb, Cd, Cu, and Zn in both contaminated soils collected from lead/mine mine area in southern Hunan were investigated. The results showed that the total concentrations of Pb, Cd, Cu, and Zn exceeded the maximum permissible limits set by State Environmental Protection Agency （SEPA） for soils in China, indicating that both soils seriously suffered from heavy metal contamination. The extraction percentages of Pb, Cd, Cu, and Zn with Tessier＇s sequential extraction procedures were 96.3%, 94...