广西主产区麻竹笋及其产地土壤重金属含量分析
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作者单位:

广西壮族自治区林业科学研究院,广西 南宁 530002

作者简介:

栾洁 女 高级工程师 研究方向为林产品质量提升 E-mail: 786448419@qq.com

通讯作者:

陈松武 男 正高级工程师 研究方向为木材加工技术 E-mail: 291961165@qq.com

中图分类号:

R155

基金项目:

广西林业科技推广示范项目(2023GXLK27)


Characterization of heavy metal content in soil of dendrocalamus latiflorus and their origins in the main production areas of Guangxi
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Guangxi Forestry Research Institute, Guangxi Nanning 530002, China

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    摘要:

    目的 了解广西麻竹主产区麻竹笋及产地土壤重金属的含量情况,分析其分布特征。方法 在广西南宁市、桂林市、柳州市和百色市4个麻竹主产区共采集麻竹笋115份,麻竹笋产地土壤样品115份,检测麻竹笋和土壤样品中砷、汞、镉、锰、钡、镍、铜、铬、铅和钛10种重金属元素含量,用单因子污染指数法、内梅罗综合污染指数法分析产地土壤重金属污染情况,并探讨麻竹笋中重金属与产地土壤重金属之间的相关性以及富集系数(BCF)。结果 115份麻竹笋样品中所有重金属含量均未超出限量值,产地土壤样品中,镉、砷、铬和镍分别有16.5%、3.5%、0.9%和1.7%超出标准规定的风险筛选值,汞、铅、铜元素均未超出风险筛选值,表明麻竹笋主产区土壤未见明显的重金属污染。麻竹笋中各重金属元素含量与对应产地土壤重金属元素含量之间存在多种复杂相关关系,麻竹笋对重金属的富集能力普遍较弱(BCF<0.05),仅铜、镉相对高于其他元素。结论 麻竹笋中的重金属含量均未超出国家相关标准规定的限量值,其食用风险低,产地土壤未见明显重金属污染,麻竹笋中重金属与产地土壤重金属含量之间存在多种复杂相关关系。

    Abstract:

    Objective To investigate the content of heavy metals in dendrocalamus latiflorus and soil of origin in the main production areas of dendrocalamus latiflorus in Guangxi, and to analyse their distribution characteristics.Methods A total of 115 soil samples of dendrocalamus latiflorus and 115 samples of dendrocalamus latiflorus were collected in the four main dendrocalamus latiflorus production areas of Nanning, Guilin, Liuzhou and Baise in Guangxi. As, Hg, Cd, Mn, Ba, Ni, Cu, Cr, Pb and Ti as 10 heavy metal elements in dendrocalamus latiflorus and soil samples were analyzed. The pollution of heavy metals in soil of origin was analyzed by the single-factor pollution index method and the Nemero composite pollution index method, and the correlation between heavy metals in jatropha dendrocalamus latiflorus and heavy metals in soil of origin and bioconcentration factor (BCF) was explored.Results All heavy metals in 115 dendrocalamus latiflorus samples did not exceed the limit values. In the soil samples from the production area, 16.5%, 3.5%, 0.9% and 1.7% of Cd, As, Cr and Ni respectively exceeded the risk screening values specified in the standard, while the elements Hg, Pb and Cu did not exceed the risk screening values, and the contamination index indicated that there was no obvious heavy metal contamination of the soil in the main production area of dendrocalamus latiflorus. The results of the correlation analysis showed that there were various complex correlations between the contents of each heavy metal element in dendrocalamus latiflorus and the contents of heavy metal elements in the soil of the corresponding origin. Jatropha shoots were generally weakly enriched for heavy metals (BCF<0.05), with only Cu and Cd being relatively higher than the other elements.Conclusion None of the heavy metal contents in dendrocalamus latiflorus exceeded the limit values, and no obvious heavy metal contamination was seen in the soil of the origin, and there were many complex correlations between the heavy metals in dendrocalamus latiflorus and the heavy metal contents in the soil of the origin.

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栾洁,陈桂丹,莫雯霞,蒙芳慧,李坤,陈松武.广西主产区麻竹笋及其产地土壤重金属含量分析[J].中国食品卫生杂志,2025,37(7):595-604.

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  • 收稿日期:2025-05-19
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  • 在线发布日期: 2025-11-13
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