| 余云龙，邹烨燔，毕竟，杜函函，毕华.3 代木麻黄林系统重金属的分布和迁移特征[J].广东农业科学,2014,41(6):193-198 |
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3 代木麻黄林系统重金属的分布和迁移特征 |
| Distribution and migration characteristics of heavy metals inthree generations of Casuarina equisetifolia forest system |
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| DOI： |
| 中文关键词: 木麻黄 重金属 分布 迁移特征 |
| 英文关键词: Casuarina equisetifolia heavy metal distribution migration characteristics |
| 基金项目:国家自然科学基金（41101278, 41101302）；国家
级大学生创新训练项目（201211078054）；广州市高校科研项目
（10A033） |
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| 中文摘要: |
| 对海南岛滨海沙土上3 代木麻黄林生态系统中重金属元素的分布与迁移特征进行研究。结果表明：（1）滨海沙土重金属含量顺序为Cu>Zn>Pb>Ni>As>Cd，3 代木麻黄植物各个部位中，重金属元素分布各异，总体木麻黄林地上部分重金属含量高于地下部分，3 代木麻黄林中Zn、Cu 和Pb 元素含量都位列前3 位；（2）第1、2、3 代木麻黄林对Cd 均有较强的富集能力，Cd 元素的富集系数分别为13.1269、7.0090 和10.8176，远高于其他元素；（3）第1、2、3代木麻黄对Zn 元素的迁移系数和富集系数分别为2.0946、1.7105、3.9634 和3.6745、1.9651、5.7165，木麻黄植株内Zn元素远高于其他元素。 |
| 英文摘要: |
| Distribution and migration characteristics of heavy metals in three generations of Casuarina equisetifolia
ecological forest system were studied in Hainan Island. The result showed that, the sequence of content of heavy metals in
coastal sandy was Cu>Zn>Pb>Ni>As>Cd, contents of heavy metals were different in different parts of three generations of
C. equisetifolia plants, the content of heavy metal of the overground higher than that of the underground in C.
equisetifolia plants, and the conce灶trations of Zn, Cu, Pb were in the top three. The enrichment ability of all generations of
C. equisetifolia on Cd was far stronger than other heavy metals, the enrichment coefficients of Cd of the first, second and
third C. equisetifolia were 13.1269, 7.0090 and 10.8176, respectively. The content of Zn in all generations of C.
equisetifolia was far higher than other heavy metals, the migration coefficients of Zn of the first, second and third C.
equisetifolia were 2.0946, 1.7105 and 3.9634, the enrichment coefficients of Zn were 3.6745, 1.9651 and 5.7165,
respectively. |
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