安徽农业科学2016，Vol.44Issue(15)：146-149,4.
广西某铅锌矿区农田土壤重金属形态分布特征
Distribution Characteristics of Heavy Metal Forms in Farmland Soil in a Lead-Zinc Mining Area in Guangxi
摘要
Abstract
Objective] To research the form distribution characteristics of heavy metal in farmland soil in a lead-zinc mining area in Guangxi. [Method] An experiment was conducted to study the form distribution of heavy metals (Cd, Pb, Zn, Hg) in farmland soil in a lead-zinc min-ing area in Guangxi by using Tessier sequential extraction procedure, and regression analysis was made between the heavy metals fraction in bioavailability.[Result] Cd was dominated by exchangeable form, Pb was mostly in the carbonate and Fe-Mn oxides forms, Zn existed mainly in residual, organic and Fe-Mn oxides forms, while the residual and organic forms was most for Hg .According to the results of regression anal-ysis, there was an extremely significant or significant correlation between the exchangable form of Cd, Pb, Zn and its total amount, which was not performed in Hg.It was extremely significant between exchangeable and carbonate form for Cd, and also among exchangeable Fe-Mn ox-ides and residual forms for Pb and Fe-Mn oxides, organic and residual forms for Zn.While it had poor correlation between each forms of Hg . The bioavailability size of heavy metals in the soil was for Cd, Pb, Zn, Hg in turn in the study area.[Conclusion] This research provides the-oretical foundation for the soil remediation in mining area .关键词
铅锌矿区/农田土壤/重金属形态/生物有效性Key words
Lead-zinc mining area/Agricultural soil/Heavy metals forms/Bioavailability分类
资源环境引用本文复制引用
覃朝科,农泽喜,黄伟,何娜,刘静静..广西某铅锌矿区农田土壤重金属形态分布特征[J].安徽农业科学,2016,44(15):146-149,4.基金项目
“广西特聘专家”专项经费资助项目；广西科技攻关项目（桂科攻0719005－2－2 E ）；广西科技重大专项（桂科重1598014－3）；桂林市科学研究与技术开发计划项目（20130104－5）。 （）
