| 刘 月1，2，林运萍1，2，黄世清1，2，吉家健1，2，刘 慧1，2，陈云虹1，2.海南岛热带作物产地土壤重金属含量特征及地积累污染评价[J].广东农业科学,2017,44(7):59-64 |
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海南岛热带作物产地土壤重金属含量特征及地积累污染评价 |
| Concentration characteristics and geoaccumulation index assessment of soil heavy metals in tropical cropsproducing areas of Hainan Island |
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| DOI：10.16768/j.issn.1004-874X.2017.07.010 |
| 中文关键词: 海南岛 热带作物 土壤重金属 地积累污染评价 |
| 英文关键词: Hainan Island tropical crops soil heavy metal Geoaccumulation index assessment |
| 基金项目:海南省重点研发计划项目（ZDYF2016061） |
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| 中文摘要: |
| 以海南岛热带作物产地土壤为研究对象，对土壤中As、Hg 、Pb、Cd、Cr 等5 种重金属进行含
量特征分析，并利用地积累污染指数法对土壤重金属污染程度进行评价。结果表明，以海南省表层土壤背
景值为参照标准，As、Hg、Cr 的比值分别为4.90、2.00、7.73，污染率分别为92.45%、85.53%、71.70%，表明
人类活动已造成一定程度的As、Hg、Cr 污染累积；部分土壤样品重金属As、Cr 含量超过国家土壤环境质
量标准的二级标准，其中As 污染率0.63 %，Cr 污染率43.40 %；地积累污染指数法表明研究区局部土壤受
到重金属污染，主要表现为红明、东昌、南海、东路和南阳农场的Cr 污染，其地积累污染指数分别为0.83、
1.03、0.99、0.72 和0.62。 |
| 英文摘要: |
| Investigation and assessment of pollution in heavy metals such as As，Hg，Pb，Cd and Cr in tropical
crops producing areas of Hainan Island were carried out. The concentration characteristics of heavy metals were
evaluated，and the degree of heavy metals pollution was evaluated by means of Geoaccumulation Index. The results
showed that the background value of surface soil in Hainan was taken as the reference standard，and the ratio of As，
Hg and Cr was 4.90，2.00 and 7.73 respectively. The pollution rate was 92.45%，85.53% and 71.70% respectively，
which showed that human activities had caused a certain degree of pollution accumulation of As，Hg and Cr. The
concentration of heavy metals such as As and Cr in some soil samples exceeded the secondary standard of national
soil environmental quality standard. The pollution rate of As and Cr was 0.63% and 43.40% respectively. The
Geoaccumulation Index indicated that some of the soils in the study areas were polluted by heavy metals. The main
manifestation was the Cr pollution in Hongming，Dongchang，Nanhai，Donglu and Nanyang. The Geoaccumulation
Index was 0.83，1.03，0.99，0.72 and 0.62 respectively. |
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