| 张登新，唐少霞*
，吴 丹，庄亚呢，高家凤，陈珂珂.土壤-黎药系统中重金属的迁移富集特征
及健康风险评价[J].海南师范大学学报自科版,2022,35(3):305-313 |
| 土壤-黎药系统中重金属的迁移富集特征
及健康风险评价 |
| Characteristics of Migration and Accumulation of Heavy Metals inSoil-Li Medicine System and Health Risk Evaluation |
| |
| DOI：10.12051/j.issn.1674-4942.2022.03.010 |
| 中文关键词: 重金属 黎药 迁移 富集 健康风险评价 |
| 英文关键词: heavy metals Li medicine migration accumulation health risk |
| 基金项目:海南省地理学重点学科资助项目 |
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| 摘要点击次数: 1424 |
| 全文下载次数: 1524 |
| 中文摘要: |
| 采用地累积指数法、富集系数法、迁移系数法和靶标危害系数法对土壤-黎药系统中重
金属元素铜（Cu）、铬（Cr）、铅（Pb）和镉（Cd）的含量及迁移富集特征进行测评。结果表明：除天然林
地土壤未受到Cd污染外，蔬菜地、天然林地、橡胶林地和植物园地4种黎药样地均受到Cr、Cu和Cd
不同程度的污染；除了以根部入药的五指毛桃和以叶入药的草豆蔻受到Pb的轻微污染外，大沙叶、
益智、豆蔻和砂仁4种黎药的药用部位均未受到重金属污染；6种黎药对Cd和Cu的富集能力较强，
对Cr的富集能力较弱，对Pb的富集能力最弱；Cd和Pb在黎药茎—叶间的迁移能力极强，Cr在茎—
叶间的迁移能力较强，Cu在根—茎—叶间的迁移能力一般；6种黎药药用部位残留的Cd、Cr、Cu和
Pb对暴露人群无摄入风险。 |
| 英文摘要: |
| In this research, a series of methods based on geo-accumulation index, bio-concentration factors, trans-loca⁃
tion factor, and target hazard quotients were utilized to analyze and evaluate the heavy metal contents including Cu, Cr, Pb,
Cd, as well as the characteristics of translocated accumulation from soil-Li medicine system. The results showed that the
natural forests were free from Cd pollution, whereas soils of vegetable field, botanical garden, rubber plantation of Li medi⁃
cine samples were all polluted by Cr, Cu, and Cd with various degrees. In addition to the fact that Fructus Amomi Longiligu⁃
laris with its roots used as medicine and Alpiniae Katsumadai Semen with its leaves used as medicine were slightly polluted
by Pb, medical part of the stem and leaf of Hongkong Pavetta, Sharpleaf Galangal Fruit, Whitefruit Amomim Fruit, Fructus
Amomi Longiligularis were all free from heavy metal pollution. The enrichment capacity of 6 kinds of Li medicines on
heavy metals was different, which was stronger for Cd and Cu, weak for Cr, and weakest for Pb. The heavy metals Cd and Pb presented extremely strong ability to translocate between stem and leaf of Li medicine, while Cr presented strong ability to
translocate between stem and leaf, and Cu presented relatively moderate translocation ability from root to stem to leaf. The
residual Cd, Cr, Cu, Pb in medical parts of six kinds of Li medicine did not pose an edible risk to the exposed population. |
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