| 铁锰硅对凤眼莲生物质结构的影响 |
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| 作者姓名： | Wu SW Zhu DW Zhou WB Deng L |
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| 作者单位： | 华中农业大学微量元素研究中心植物营养与生态环境研究室,农业部亚热带农业资源与环境重点开放实验室,湖北武汉,430070 |
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| 基金项目： | 国家自然科学青年基金项目,华中农业大学人才基金项目 |
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| 摘 要： | 分析了Fe,Mn,Si元素培养条件下凤眼莲(Eichhornia crassipes)秸秆不同部位的Fe,Mn,Si元素含量、吸附位点数以及重要官能团组成.结果表明,Mn和Si能提升生物质的酸性位点数,Mn的作用尤其明显,而铁降低生物质的酸性位点数;在铁、锰及其组合处理后,风眼莲秸秆三个部位的酸性位点数顺序为根>茎>叶...
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| 关 键 词： | 凤眼莲 铁 锰 硅 吸附位点 官能团 |
Effect of Fe-Mn-Si on the biomass structure of Eichhornia crassipes |
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| Wu SW,Zhu DW,Zhou WB,Deng L.Effect of Fe-Mn-Si on the biomass structure of Eichhornia crassipes[J].Spectroscopy and Spectral Analysis,2011,31(4):1087-1091. |
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| Authors: | Wu Shao-Wei Zhu Duan-Wei Zhou Wen-Bing Deng Li |
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| Institution: | Laboratory of Plant Nutrition and Ecological Environment Research, Microelement Research Center of Huazhong Agricultural University, Key Lab of Subtropical Agriculture & Environment, Ministry of Agriculture, Wuhan 430070, China. wswei.123@webmail.hzau.edu.cn |
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| Abstract: | Eichhornia crassipes (water hyacinth) was cultivated under different iron (Fe), manganese (Mn) and silicon (Si) nutrient treatments for its biomass characteristics research which was determined by various items including nutrient element content (Fe, Mn and Si), adsorption sites and active function groups. The results show that Mn and Si can enhance acidic sites of the plant, in which Mn plays a great role, but Fe reduces the acidic sites. The sequence of acidic sites' amount among three parts of the plant is root > stem > leaf, in the treatment of Fe, Mn and their combination, and leaf > stem > root in Si treatment. The amount of alkaline sites is less than that of acidic sites, and the difference in their distributions among three parts of the plant is not great. Mn and Si treated Eichhornia crassipes stalks have more amorphous material, such as lignin, pectin and xylan (hemicellulose), which have more functional groups of -OH, -COOH and acidic sites. |
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