| 不同土壤质地条件下麦秸、铅对镉在水稻-土壤系统中迁移的影响 |
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| 引用本文： | 陈京都,刘萌,顾海燕,戴其根,仲晓春,林忠成,张洪程.不同土壤质地条件下麦秸、铅对镉在水稻-土壤系统中迁移的影响[J].农业环境科学学报,2011,30(7). |
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| 作者姓名： | 陈京都 刘萌 顾海燕 戴其根 仲晓春 林忠成 张洪程 |
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| 作者单位： | 1. 扬州大学江苏省作物遗传生理重点实验室/农业部长江流域稻作技术创新中心,江苏扬州225009;
2. 扬州大学江苏省作物遗传生理重点实验室/农业部长江流域稻作技术创新中心,江苏扬州225009;吴江市农业委员会,江苏吴江215200 |
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| 基金项目： | 江苏省农委项目:江苏省农产品质量安全产地适宜性评价; 国家粮食丰产科技工程项目(2006BAD02A03) |
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| 摘 要： | 通过室外砂土和黏土的大型土柱栽培试验,研究了麦秸、铅对镉在水稻-土壤中迁移的影响。研究结果表明,在砂土和黏土中随着水稻的生长发育,水稻植株镉含量逐渐降低,添加铅和麦秸均促进了水稻对镉的吸收,增加了水稻植株镉的含量,且铅的促进效应大于麦秸处理。添加铅和麦秸有利于镉向籽粒的转运和提高水稻籽粒镉的富集系数,砂土中添加铅、麦秸的处理籽粒镉含量和富集系数比镉单一处理分别增加44.00%、36.00%和41.67%、50.00%;黏土中分别增加58.62%、43.00%和46.15%、61.54%。镉进入土壤后会随着水分流动向下迁移,在砂土中的迁移能力大于黏土。随着土壤深度的增加镉含量逐渐减少,黏土在40～60cm、砂土在60～80cm土层中镉含量与对照含量差异不显著。添加铅和麦秸可以降低镉在土壤中向下迁移的能力,降低幅度黏土大于砂土。
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| 关 键 词： | 水稻 土壤 镉 铅 麦秸 迁移 |
Effects of Wheat Straw and Lead on Cadmium Remove in Rice-Soil Systems in Different Texture Soils |
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| CHEN Jing-du,LIU Meng,GU Hai-yan,DAI Qi-gen,ZHONG Xiao-chun,LIN Zhong-cheng,ZHANG Hong-cheng.Effects of Wheat Straw and Lead on Cadmium Remove in Rice-Soil Systems in Different Texture Soils[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2011,30(7). |
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| Authors: | CHEN Jing-du LIU Meng GU Hai-yan DAI Qi-gen ZHONG Xiao-chun LIN Zhong-cheng ZHANG Hong-cheng |
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| Institution: | CHEN Jing-du1,LIU Meng1,GU Hai-yan1,DAI Qi-gen1*,ZHONG Xiao-chun1,LIN Zhong-cheng1,2,ZHANG Hong-cheng1 (1.Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Innovation Center of Rice Cultivation Technology in Yangtze Valley,Ministry of Agriculture,Yangzhou University,Yangzhou 225009,China,2.Agriculture Committee of Wujiang County,Wujiang 215200,China) |
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| Abstract: | The experiments of rice cultivated in sandy and clay soil columns were conducted under outdoor condition to investigate the effects of wheat straw and lead on cadmium remove in rice-soil systems in artificial Cd-contaminated soil. The results of the study indicated that the content of cadmium in rice reduced gradually with growth and development. Both of wheat straw and lead promoted the rice to absorbed cadmium and increased the content of cadmium in rice, which the impact of lead was greater than wheat st... |
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| Keywords: | rice soil cadmium lead wheat straw migration |
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