合肥市土壤中Cd、Hg、Pb、As、Cu和Ni元素的剖面分布特征
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摘要
选择合肥市不同功能区及不同母质上发育的20个水稻土剖面,分析Cd、Hg、Pb、As、Cu和Ni等重金属元素的剖面分布特征。结果表明,工业岗(圩)区、农业岗(圩)区水稻土剖面表层土壤Hg、Cd元素含量均值有显著差异,Cd、Hg、Pb在表层土壤中富集明显,向下迁移能力较差;工业岗(圩)区Cu、Ni元素在表层土壤中略有累积,As、Cu、Ni含量的剖面分布特征在工业岗(圩)区、农业岗(圩)区差异不显著,土壤中TFe2O3含量和地下水位是控制土壤剖面中As、Cu、Ni元素分布的重要因素。
Twenty paddy soil profiles from Hefei,Anhui Province in industrial and agricultural environment,developed on different weathered parent materials and impacted under different environment,were chosen to study the profile distribution of heavy metals(Cd,Hg,Pb,As,Cu and Ni).The average value difference of Cd,Hg in the topsoils was remarkable.Cd,Hg and Pb accumulated in the topsoil obviously,and moved down to deep soil weakly.Light accumulations of Cu and Ni in the topsoil were found in the industrial environment.The distributions of As,Cu,and Ni had little difference in the different profiles.TFe2O3 content and water level impacted the migration of the As,Cu,Ni elements in the paddy soil profile.
Twenty paddy soil profiles from Hefei,Anhui Province in industrial and agricultural environment,developed on different weathered parent materials and impacted under different environment,were chosen to study the profile distribution of heavy metals(Cd,Hg,Pb,As,Cu and Ni).The average value difference of Cd,Hg in the topsoils was remarkable.Cd,Hg and Pb accumulated in the topsoil obviously,and moved down to deep soil weakly.Light accumulations of Cu and Ni in the topsoil were found in the industrial environment.The distributions of As,Cu,and Ni had little difference in the different profiles.TFe2O3 content and water level impacted the migration of the As,Cu,Ni elements in the paddy soil profile.
引文
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[3]王祖伟,徐利淼,张文具.土壤微量元素与人类活动强度的对应关系[J].土壤通报,2002,33(4):303-305.
[4]Rainer S,Fabien C,Margarita M,et al.Heavy metal con-tamination along a soil transect in the vicinity of the ironsmelter of Kremikovtzi(Bulgaria)[J].Geoderma,2007,140:52-61.
[5]Odor L,Wanty R B,Horvath I,et al.Mobilization and at-tenuation of metals downstream from a base-metal miningsite in the Matra Mountain,northeastern Hungary[J].Journal of Geochemical Exploration,1998,65(1):47-60.
[6]徐尚平,陶澍,曹军,等.天津地区土壤中微量元素含量的纵向分异[J].中国环境科学,1999,19(3):226-229.
[7]刘洪莲,李恋卿,潘根兴.苏南某些水稻土中Cu、Pb、Hg、As的剖面分布及其影响因素[J].农业环境科学学报,2006,25(5):1 221-1 227.
[8]王国梁,周生路,赵其国,等.菜地土壤剖面上重金属元素含量随时间的变化规律研究[J].农业工程学报,2006,22(1):79-84.
[9]Elizabeth M,Brian G,Honway L,et al.Metal partitioningin soil profiles in the vicinity of an industrial complex,New South Wales,Australia[J].Geochemistry:Explora-tion,Environment,Analysis,2004,4(2):171-179.
[10]Chukwujindu M A I.Metal fractionation in soil profiles atautomobilemechanic waste dumps[J].Waste ManageRes,2007,25:585-593.
[11]陈怀满.土壤中化学物质的行为于环境质量[M].北京:科学出版社,2002:51-52.
[12]张民,龚子同.我国菜园土壤中某些重金属元素的含量与分布[J].土壤学报,1996,33(1):85-93.
[13]王云,魏复盛.土壤环境元素化学[M].北京:中国环境科学出版社,1995:145-155.
[14]陈怀满.土壤-植物系统中的重金属污染[M].北京:科学出版社,1996:195-209.
[15]王晶,张旭东,李彬,等.腐殖酸对土壤中Cd形态的影响及利用研究[J].土壤通报,2002,33(3):185-187.
[16]马毅杰,陈家坊.我国红壤中氧化铁形态及其特性和功能[J].土壤,1998(1):1-6.
[17]谢正苗.砷的土壤化学[J].农业环境保护,1989,8(1):36-38.
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