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应用生态学报 ›› 2001, Vol. ›› Issue (3): 451-454.

• 研究论文 • 上一篇    下一篇

14C菲在“植物-火山石-营养液-空气”系统中的迁移和转化

姜霞, 区自清, 应佩峰, Ayfer Yediler Antonious Kettrup   

  1. 1. 中国科学院沈阳应用生态研究所陆地生态过程开放研究实验室, 沈阳 110016;
    2. 德国国家环境与健康研究中心生态化学研究所, GSF/IC
  • 收稿日期:2000-12-19 修回日期:2001-02-19 出版日期:2001-05-25
  • 通讯作者: 姜霞,女,1974年生,在读博士生,从事污染生态方面的研究,已发表论文数篇.E-mail:jiangxia@iae.syb.ac.cn
  • 基金资助:
    国家自然科学基金(29677021);德国BMBF资助

Transportation and transformation of 14C-phenanthrene in closed chamber (nutrient solution-lava-plant-air) system

JIANG Xia, OU Ziqing, YING Peifeng, Ayfer Yediler, Antonious Ketrrup   

  1. 1. Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016;
    2. GSF/Institute of Ecological Chemistry, Germany
  • Received:2000-12-19 Revised:2001-02-19 Online:2001-05-25

摘要: 利用放射性同位素示踪技术,研究14C菲在植物火山石营养液空气封闭系统中的迁移转化.结果表明,菲在该系统中降解较快,实验进行到23d时,营养液中的放射性含量仅为施入时的25%.实验结(46d)时,14C放射性在该系统各部分间的分布顺序为根(38.55%)>挥发性有机代谢产物(VOCs,17.68%)>火石(14.35%)>CO2(11.42%)>茎(2%);植物体内的放射性物质主要以结合态(根4.68%;茎叶0.68%)与植物组织结合和以极性代谢产物(根23.14%;茎0.78%)形式存在.

Abstract: The transportation and transformation of 14C phenanthrene in a closed ‘plant lava nutrient solution air' chamber system was studied by using radioactivity technology. The results showed that in this closed chamber system,phenanthrene was degraded fast.The radioactivity of 14C left at 23d in the nutrient solution was only 25% of applied.At the end of experiment (46d),the distribution sequence of 14C activity in the components of closed chamber system was root (38.55%)>volatile organic compounds (VOCs, 17.68%)>lava (14.35%)>CO2(11.42%)> stem (2%). 14C activities in plant tissue were combined with the tissue,and existed in the forms of lava bound(root 4.68%; stem and leaves 0.68%) and polar metabolites (root 23.14%; stem 0.78%).

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