| 广西河池大环江板力村近岸农田重金属污染分析 |
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| 引用本文： | 张新英,刘勇,吴浩东,韦金告.广西河池大环江板力村近岸农田重金属污染分析[J].农业环境科学学报,2010,29(Z1). |
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| 作者姓名： | 张新英 刘勇 吴浩东 韦金告 |
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| 作者单位： | 广西师范学院资源与环境科学学院,南宁,530001 |
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| 基金项目： | 国家自然科学基金项目(40861024);;广西自然科学基金项目(0640071) |
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| 摘 要： | 为探明大环江沿岸受有色金属矿业影响污染严重的稻田和废弃农田的重金属状况,采集了广西河池板力村沿岸稻田土样和稻谷样品,采用ICP-AES法分析了As、Cd、Cr、Cu、Mn、Ni、Pb、Sb、Zn等重金属元素浓度,并采用地质累积指数判定法对稻田土污染程度进行评价,采用污染指数判定法对稻谷污染程度进行评价。结果表明:广西河池大环江板力村河岸污染农田主要超标元素为Pb、Zn和As,废弃田中这几种元素的平均浓度分别为388、275和29.4 mg.kg-1。依据地质累积指数判定法,Pb为强污染,Zn为中度污染,As为轻污染。稻米中主要超标元素为Pb和Cu,其平均值分别为1.85和14.7 mg.kg-1。稻壳中的重金属浓度高于稻米,且瘪谷壳中的重金属浓度高于正常结粒稻壳(Cu除外),说明稻壳比稻米更易累积重金属。
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| 关 键 词： | 大环江沿岸 重金属污染 铅锌矿 |
Heavy Metal Contamination in Paddy Soil and Rice Along Dahuan River in Banli Village of Hechi, Guangxi |
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| ZHANG Xin-ying,LIU Yong,WU Hao-dong,WEI Jin-gao.Heavy Metal Contamination in Paddy Soil and Rice Along Dahuan River in Banli Village of Hechi, Guangxi[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2010,29(Z1). |
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| Authors: | ZHANG Xin-ying LIU Yong WU Hao-dong WEI Jin-gao |
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| Institution: | Guangxi Teachers Education University/a>;Nanning 530001/a>;China |
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| Abstract: | To determine the level of heavy metal in polluted paddy soil and rice along Dahuan River,ICP-AES was used to analyze heavy metal elements including As,Cd,Cr,Cu,Mn,Ni,Pb,Sb and Zn of paddy soil samples and rice samples.The interpretation of geo-accumulation index(Igeo)was used to assess the contamination of the paddy soil and the pollution indices were used to evaluate the contamination of rice.The results showed that Pb,Zn and As in paddy soil exceeded the national standard,with the mean concentrations in a... |
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| Keywords: | Dahuan River coast heavy metal contamination lead/zinc mine |
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