观赏性富集植物修复土壤镉污染效果的对比研究  

Comparative Study on the Remediation Efficiency of Ornamental Accumulator Plants of Soil Cadmium Pollution

作　　者：徐兰兰 浦江 刘彦红 严崧 徐锐[1] 孙世中[1] 黄益宗 官会林[1] 宋洪川[1] 黄晶心 XU Lanlan;PU Jiang;LIU Yanhong;YAN Song;XU Rui;SUN Shizhong;HUANG Yizong;GUAN Huilin;SONG Hongchuan;HUANG Jingxin(School of Energy and Environmental Sciences,Yunnan Normal University,Kunming 650500,China;Shiping County Agricultural Environmental Protection Rural Habitat Environment Station,Shiping 662200,China;Yunnan Province Rural Energy Management Station,Kunming 650500,China)

机构地区：[1]云南师范大学能源与环境科学学院,云南昆明650500 [2]石屏县农业环保农村人居环境工作站,云南石屏662200 [3]云南省农村能源管理总站,云南昆明650500

出　　处：《云南师范大学学报（自然科学版）》2024年第4期37-41,共5页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家自然科学基金资助项目(32360317);云南省应用基础研究基金资助项目(202301AT070077);云南省教育厅科学研究基金资助项目(2024Y153).

摘　　要：为探究观赏性镉(Cd)富集植物修复土壤Cd污染的效果,通过田间随机区组试验,在Cd浓度为2.5 mg·kg^(-1)的农田中分别种植孔雀草、忍冬、紫茉莉和万寿菊4种观赏植物,探究了不同观赏植物对Cd的吸收和富集特性.结果表明:不同观赏植物植株Cd含量和积累量表现为万寿菊>孔雀草>紫茉莉>忍冬;万寿菊和孔雀草地上部Cd含量和积累量大于地下部分,紫茉莉和忍冬地上部Cd含量和积累量小于地下部分;万寿菊的富集系数和转运系数最大,地上富集系数达到2.48、转运系数达到1.63,对重金属Cd具有最强的吸收和富集性.表明万寿菊在Cd污染的条件下具有较好的修复土壤Cd污染潜力和应用前景.To explore the effect of hyperaccumulater plantson remediation of cadmium-contaminated soil,a field randomized block experiments were conducted in farmland with a Cd concentration of 2.5 mg·kg^(-1).Tagetes patula L.,Lonicera japonica Thunb.,Mirabilis jalapa L.and Tagetes erecta L.were planted separately to investigate the absorption and enrichment characteristics of Cd by different ornamental plants.The results showed that different ornamental plants have different abilities to absorb and accumulate soil Cd,with the absorption and enrichment performance of Cd in Tagetes erecta L.>Tagetes patula L.>Mirabilis jalapa L.>Lonicera japonica Thunb.The aboveground Cd content and accumulation of Tagetes erecta L.and Tagetes patula L.were greater than the underground parts,while the aboveground Cd content and accumulation of Mirabilis jalapa L.and Lonicera japonica Thunb.were less than the underground parts.The enrichment factor and translocation factor of Tagetes erecta L.were the highest,with an aboveground enrichment factor of 2.48 and a translocation factor of 1.63,indicating that it has the strongest absorption and enrichment capability for Cd.This study shows that Tagetes erecta L.has a good potential and application prospect in remediation of cadmium-contaminated soil.

关 键 词：土壤镉污染 植物修复 观赏植物 

分 类 号：X53[环境科学与工程—环境工程]