| 邹春萍，张佩霞，陈金峰，等.25 种观赏植物的重金属富集特性研究[J].广东农业科学,2015,42(12):66-72 |
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25 种观赏植物的重金属富集特性研究 |
| Heavy metal enrichment characteristics of 25 kinds of ornamental plants |
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| DOI： |
| 中文关键词: 观赏植物 重金属污染 植物修复 富集系数 |
| 英文关键词: ornamental plants heavy metal pollution phytoremediation enrichment coefficient |
| 基金项目: |
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| 摘要点击次数: 1587 |
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| 中文摘要: |
| 采用10 科25 种观赏植物进行重金属富集特性试验，它们均能够在受到轻度污染的Cd-Pb-Cu 土
壤上正常生长。富集系数大多与土壤重金属质量分数显著相关，与各器官生物量不相关，生物量大的植物也有
可能富集更多的重金属。凤尾蕨、肾蕨和万寿菊地上部及地下部Cd 富集系数均大于1，紫苏地上部及地下部
Pb 富集系数均大于1，小蚌兰地上部及地下部Cu 富集系数大于1，表现出较强的重金属富集能力。地上部富集
系数大于1，同时生物量大的观赏植物地上部能积累更多重金属，用于污染修复更具有潜在优势。 |
| 英文摘要: |
| The enrichment characteristics of 25 kinds of ornamental plants in 10 families were studied. Theresults showed that, they were able to grow normally in soil slightly polluted by Cd-Pb-Cu. Enrichment coefficientmainly associated with heavy metal concentration in soil, and did not associated with the biomass of each organ.Plant with higher biomass may accumulate more heavy metals. The enrichment coefficients for Cd of aboveground andunderground parts of Pteris cretica, Nephrolepis auriculata and Tagetes erecta, the enrichment coefficients for Pb ofaboveground and underground parts of P. frutescens, the enrichment coefficients for Cu of aboveground andunderground parts of Rhoeo spathaceo, were more than 1, indicating that they had strong enrichment ability of heavymetals. Plants with enrichment coefficient of aboveground part more than 1 and larger biomass could accumulatemore heavy metals, and had the potential advantage for pollution remediation |
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