| 种植陆地棉原位净化污灌区土壤中镉的可行性 |
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| 引用本文： | 朱宇恩,李 强,赵 烨,田 青,陈志凡,乔捷娟,吉艳琴.种植陆地棉原位净化污灌区土壤中镉的可行性[J].环境科学研究,2010,23(2):184-190. |
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| 作者姓名： | 朱宇恩 李 强 赵 烨 田 青 陈志凡 乔捷娟 吉艳琴 |
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| 作者单位： | 1.北京师范大学环境学院, 水环境模拟国家重点实验室, 北京 100875;山西大学环境与资源学院, 山西 太原 030006 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目(2007CB407302);;教育部博士点基金项目(20050027022) |
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| 摘 要： | 为探讨非食源性作物陆地棉应用于土壤中镉原位净化的可行性，选取华北地区城郊污灌区6块代表性陆地棉样地，运用高分辨电感耦合等离子体质谱仪(HR-ICP-MS)，测定了土壤及陆地棉根系、秸秆、果壳、纤维、籽粒中消解态全镉含量. 结果显示:污灌土壤中w(Cd)平均值为247.26 μg/kg，已出现积累现象；陆地棉植株各组织中w(Cd)为果壳(199.1 μg/kg)>秸秆(171.8 μg/kg)>根系(122.9 μg/kg)>籽粒(107.8 μg/kg)>纤维(44.8 μg/kg)；陆地棉植株地上部分w(Cd)的加权平均值为150.2 μg/kg，其富集系数(BCF)为0.612，转移系数(TI)为1.22；按陆地棉生物量(干质量)为36000 kg/hm2计算，种植一季陆地棉可使土壤耕作层中w(Cd)降低2.02 μg/kg，降低了0.82%. 陆地棉属非食源性经济作物，其地域适应性广，对土壤镉的耐性较强，在污灌区土壤镉的原位净化中具有潜在应用前景.
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| 关 键 词： | 污灌土壤 陆地棉 镉 原位净化 |
| 收稿时间： | 2009/7/6 0:00:00 |
| 修稿时间： | 2009/10/12 0:00:00 |
Feasibility of In Situ Cadmium Decontamination of Sewage-Irrigated Soils using Gossypium hirsutum L. |
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| ZHU Yu-en,LI Qiang,ZHAO Ye,TIAN Qing,CHEN Zhi-fan,QIAO Jie-juan and JI Yan-qin.Feasibility of In Situ Cadmium Decontamination of Sewage-Irrigated Soils using Gossypium hirsutum L.[J].Research of Environmental Sciences,2010,23(2):184-190. |
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| Authors: | ZHU Yu-en LI Qiang ZHAO Ye TIAN Qing CHEN Zhi-fan QIAO Jie-juan and JI Yan-qin |
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| Institution: | 1.State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China;School of Environment and Resources, Shanxi University, Taiyuan 030006, China2.State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China3.National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China |
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| Abstract: | In order to fully understand the feasibility of non-food source plants((i.e.) Gossypium hirsutum L.) to serve for in situ decontamination of cadmium in soil,the cadmium contents in the soils and the different organs of the plant(including cotton root,stem,boll,seed and fiber) collected from six typical Gossypium hirsutum L.sample plots in sewage-irrigated fields located in the suburbs in the North China were determined by high resolution Inductively Coupled Plasma Mass Spectrometry(HR-ICP-MS).The results in... |
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| Keywords: | sewage-irrigated soils Gossypium hirsutum L cadmium in situ decontamination |
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