| 污灌区镉污染菜地的植物阻隔和钝化修复研究 |
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| 引用本文： | 王林,秦旭,徐应明,孙约兵,梁学峰,董如茵.污灌区镉污染菜地的植物阻隔和钝化修复研究[J].农业环境科学学报,2014,33(11):2111-2117. |
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| 作者姓名： | 王林 秦旭 徐应明 孙约兵 梁学峰 董如茵 |
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| 作者单位： | 农业部环境保护科研监测所污染防治研究室，天津 300191; 农业部产地环境质量重点实验室，天津 300191; 天津市农业环境与农产品安全重点实验室，天津 300191 |
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| 基金项目： | 国家自然科学基金项目(40901154,21177068,21107056);农业科技成果转化资金项目(2012GB23260546);公益性行业(农业)科研专项(201203045);天津市自然科学基金项目(14JCYBJC30300) |
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| 摘 要： | 为了比较植物阻隔、化学钝化及其联合修复措施对污灌区镉污染菜地的修复效果,通过大田试验,研究施用黏土矿物海泡石、膨润土和鸡粪对普通油菜和镉低积累油菜生长和镉吸收的影响,并通过重金属形态分析探讨其作用机理。结果表明,施用鸡粪可显著提高普通油菜和镉低积累油菜的地上部生物量,最大增产率分别为42.8%和127.8%,而施用黏土矿物则没有显著的增产作用。黏土矿物和鸡粪配合施用显著降低普通油菜地上部镉含量,最大降幅为50.5%,使其低于食品安全标准(GB 2762—2012)规定的叶菜类镉含量限值0.2 mg·kg-1;所有钝化处理均显著减少低积累品种地上部镉含量,使其符合食品安全标准要求。施用鸡粪显著降低土壤有效态镉含量,最大降幅为37.0%,而单独施用黏土矿物对土壤镉有效性没有显著影响;施用黏土矿物和鸡粪促进土壤镉由活性高的可交换态向活性低的残渣态或有机结合态转化,从而显著降低了镉的生物有效性。总之,种植镉低积累品种同时施用黏土矿物和鸡粪,即联合应用植物阻隔和钝化修复措施,可以更好地保障污灌区镉污染菜地的安全利用。
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| 关 键 词： | 植物阻隔修复 钝化修复 镉低积累品种 油菜 海泡石 膨润土 鸡粪 |
| 收稿时间： | 5/8/2014 12:00:00 AM |
Phytoexclusion and In-situ Immobilization of Cadmium in Vegetable Field in Sewage Irrigation Region |
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| WANG Lin,QIN Xu,XU Ying-ming,SUN Yue-bing,LIANG Xue-feng and DONG Ru-yin.Phytoexclusion and In-situ Immobilization of Cadmium in Vegetable Field in Sewage Irrigation Region[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2014,33(11):2111-2117. |
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| Authors: | WANG Lin QIN Xu XU Ying-ming SUN Yue-bing LIANG Xue-feng and DONG Ru-yin |
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| Institution: | Department of Pollution Control, Agro-environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China;Key Laboratory of Original Agro-environmental Quality, Ministry of Agriculture, Tianjin 300191, China;Tianjin Key Laboratory of Agro-environment & Agro-product Safety, Tianjin 300191, China;Department of Pollution Control, Agro-environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China;Key Laboratory of Original Agro-environmental Quality, Ministry of Agriculture, Tianjin 300191, China;Tianjin Key Laboratory of Agro-environment & Agro-product Safety, Tianjin 300191, China;Department of Pollution Control, Agro-environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China;Key Laboratory of Original Agro-environmental Quality, Ministry of Agriculture, Tianjin 300191, China;Tianjin Key Laboratory of Agro-environment & Agro-product Safety, Tianjin 300191, China;Department of Pollution Control, Agro-environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China;Key Laboratory of Original Agro-environmental Quality, Ministry of Agriculture, Tianjin 300191, China;Tianjin Key Laboratory of Agro-environment & Agro-product Safety, Tianjin 300191, China;Department of Pollution Control, Agro-environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China;Key Laboratory of Original Agro-environmental Quality, Ministry of Agriculture, Tianjin 300191, China;Tianjin Key Laboratory of Agro-environment & Agro-product Safety, Tianjin 300191, China;Department of Pollution Control, Agro-environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China;Key Laboratory of Original Agro-environmental Quality, Ministry of Agriculture, Tianjin 300191, China;Tianjin Key Laboratory of Agro-environment & Agro-product Safety, Tianjin 300191, China |
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| Abstract: | |
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| Keywords: | phytoexclusion immobilization low-cadmium-accumulating cultivar Brassica chinensis sepiolite bentonite chicken manure |
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