[14C-菲在密闭室（营养液-熔岩-植物-空气）系统中的迁移与转化]

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

作者信息

Jiang X, Ou Z, Ying P, Yediler A, Ketrrup A

机构信息

Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016.

出版信息

Ying Yong Sheng Tai Xue Bao. 2001 Jun;12(3):451-4.

PMID:11758435

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%).

摘要

利用放射性技术研究了14C-菲在封闭的“植物-熔岩-营养液-空气”室系统中的迁移和转化。结果表明，在该封闭室系统中，菲降解迅速。营养液中23天时剩余的14C放射性仅为施加量的25%。实验结束时（46天），封闭室系统各组分中14C活性的分布顺序为根（38.55%）>挥发性有机化合物（VOCs，17.68%）>熔岩（14.35%）>CO2（11.42%）>茎（2%）。植物组织中的14C活性与组织结合，以结合熔岩（根4.68%；茎和叶0.68%）和极性代谢物（根23.14%；茎0.78%）的形式存在。