| 赣南脐橙果园土壤重金属形态分布特征研究 |
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| 引用本文： | 王星梅,张文星,蒋委红,范玉兰,李勋,薛珺.赣南脐橙果园土壤重金属形态分布特征研究[J].赣南师范学院学报,2013(6):71-73. |
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| 作者姓名： | 王星梅 张文星 蒋委红 范玉兰 李勋 薛珺 |
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| 作者单位： | 赣南师范学院化学化工学院,江西赣州341000 |
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| 基金项目： | 国家自然科学基金资助项目（50968002）;赣南师范学院研究生创新专项资金项目（YCX11B004） |
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| 摘 要： | 在赣南18个脐橙产区县(市),根据不同土壤类型,选择具有代表性的果园约90个作为取样果园,采用BCR法对土壤样品的土壤重金属的形态进行分析,研究果园土壤中不同重金属元素的形态分布特征.结果表明:赣南脐橙果园土壤中生物有效性重金属形态含量所占比例从高到低依次为:Pb>Cu>Zn>Ni>Cr,同时,重金属元素Ni、Cu、Cr、Zn和Pb在不同类型土壤中的含量和形态分布规律基本一致,且均以残渣态为主,五种重金属元素的潜在环境风险都较小.
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| 关 键 词： | 重金属 土壤类型 化学形态 BCR法 |
Chemical Speciation Distribution of Heavy Metals in Navel Orange Orchard Soils in Ganzhou |
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| WANG Xingmei,ZHANG Wenxing,JIANG Weihong,FAN Yulan,LI Xun,XUE.Chemical Speciation Distribution of Heavy Metals in Navel Orange Orchard Soils in Ganzhou[J].Journal of Gannan Teachers' College(Social Science(2)),2013(6):71-73. |
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| Authors: | WANG Xingmei ZHANG Wenxing JIANG Weihong FAN Yulan LI Xun XUE |
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| Institution: | Jun ( School of Chemistry and Chemical Engineering, C.annan Normal University, Ganzhou 341000, China) |
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| Abstract: | The soil samples were collected from 90 navel orange orchards located in the 18 counties of Ganzhou district based on different soil types. The chemical speciation distributions of heavy metals in navel orange orchard soils in Ganzhou were discussed using BCR three-step sequential extraction procedure. The results obtained indicated the order of the active portion of different heavy metal in soils were ： Ph 〉 Cu 〉 Zn 〉 Ni 〉 Cr. Meanwhile, the law of the content and morphological distribution of heavy metals in the four soil types was in general quite substantial agreement, and Ni, Cu, Cr, Zn and Pb in the different soil types of Ganzhou district were domi- nated by the residual fraction. Therefore, the five metals were low potential environmental risk in the navel orange orchard. |
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| Keywords: | heavy metal soil type chemical speciation BCR procedure |
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