| 不同时期印度芥菜对镉污染土壤的净化效果研究 |
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| 引用本文： | 李新博,谢建治,李博文,王伟. 不同时期印度芥菜对镉污染土壤的净化效果研究[J]. 河北农业大学学报, 2009, 32(5) |
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| 作者姓名： | 李新博 谢建治 李博文 王伟 |
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| 作者单位： | 河北农业大学 资源与环境科学学院,河北,保定,071001;河北农业大学 资源与环境科学学院,河北,保定,071001;河北农业大学 资源与环境科学学院,河北,保定,071001;河北农业大学 资源与环境科学学院,河北,保定,071001 |
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| 基金项目： | 河北省自然基金资助项目 |
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| 摘 要： | 采用温室盆栽试验,研究了印度芥菜在生长旺盛期和结荚打籽期对重金属镉(Cd)污染土壤的净化效果。结果表明:在土壤含Cd 0.37~20.37 mg/kg范围内,只在20.37 mg/kg土壤Cd含量时生长期和结籽期印度芥菜生物量降低,其余土壤Cd浓度并未对印度芥菜生物量造成影响,但结籽期印度芥菜干物质质量比生长期高出6.9~8.6倍。随土壤Cd含量的升高,生长期和结籽期印度芥菜地上部Cd含量都升高,而结籽期印度芥菜地上部Cd含量比生长期高出0.66~1.96倍(不包括0.37 mg/kg土壤浓度)。综合评价得印度芥菜结籽期对土壤Cd的净化率比生长期高出11.26~27.44倍。晚收能够提高印度芥菜对Cd污染土壤的修复效率。
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| 关 键 词： | 印度芥菜 生长旺盛期 结籽期 镉 土壤净化 |
Studies on Brassica juncea purification of cadmium pollution soils in different stages |
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| LI Xin-bo,XIE Jian-zhi,LI Bo-wen,WANG Wei. Studies on Brassica juncea purification of cadmium pollution soils in different stages[J]. Journal of Agricultural University of Hebei, 2009, 32(5) |
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| Authors: | LI Xin-bo XIE Jian-zhi LI Bo-wen WANG Wei |
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| Affiliation: | LI Xin-bo,XIE Jian-zhi,LI Bo-wen,WANG Wei(College of Resources , Environmental Sciences,Agricultural University of Hebei,Baoding 071001,China) |
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| Abstract: | A pot experiment was conducted to investigate Brassica juncea purification of cadmium pollution soils in vigorously growing stage and seed setting stage.The results showed that the biomass of Brassica juncea was influenced by 0.37-15.37 mg/kg cadmium in the soils but the biomass of Brassica juncea decreased at 20.37 mg/kg cadmium in the soil.The dry biomass of Brassica juncea was 6.9-8.6 higher in seed setting stage than those in growing stage.The concentrations of cadmium in above-ground part of Brassica j... |
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| Keywords: | Brassica juncea vigorously growing stage seed setting stage cadmium soils purification |
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