| ^14C—菲在“植物—火山石—营养液—空气”系统中的迁移和转化 |
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| 引用本文： | 姜霞 区自清 等. ^14C—菲在“植物—火山石—营养液—空气”系统中的迁移和转化[J]. 应用生态学报, 2001, 12(3): 451-454 |
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| 作者姓名： | 姜霞 区自清 等 |
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| 作者单位： | 姜霞（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）;区自清（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）;应佩峰（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） |
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| 基金项目： | 国家自然科学基金(29677021)和德国BMBF资助项目. |
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| 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％，实验结束（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%）＞火山石（14.35%）＞CO2（11.42%0＞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。
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| 关 键 词： | ^14C－菲 封闭培养系统 多环芳烃 植物 迁移转化 |
| 文章编号： | 1001-9332(2001)03-0451-04 |
| 修稿时间： | 2000-12-19 |
Transportation and transformation of 14C-phenanthrene in closed chamber (nutrient solution-lava-plant-air) system] |
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| X Jiang,Z Ou,P Ying,A Yediler,A Ketrrup. Transportation and transformation of 14C-phenanthrene in closed chamber (nutrient solution-lava-plant-air) system][J]. The journal of applied ecology, 2001, 12(3): 451-454 |
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| Authors: | X Jiang Z Ou P Ying A Yediler A Ketrrup |
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| Affiliation: | Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016. jiangxia@iae.syb.ac.cn |
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| 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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