^(14)C-菲在营养液-火山石-小麦有控系统中的迁移和转化  

Transportation and transformation of^(14) C phenanthrene in a controlled nutrient solution lava wheat system.

作　　者：李滢[1] 区自清[1] 孙铁珩[1] 

机构地区：[1]中国科学院沈阳应用生态研究所

出　　处：《应用生态学报》1998年第3期318-322,共5页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金;中国科学院陆地生态系统痕量物质生态过程开放实验室基金

摘　　要：利用放射性同位素示踪技术研究了１４Ｃ标记菲在有控系统中的迁移转化．结果表明，１４Ｃ菲在有控系统中降解较快，施入药品２４ｄ后仅有０．３２％的１４Ｃ－菲存留在植物、营养液和火山石中．植物吸收的１４Ｃ放射性大部分被结合到植物组织中，其它１４Ｃ主要以菲的极性代谢物形态存在．With isotopic techniques, the transportation and transformation of 14 C phenanthrene in a controlled nutrient solution(NS) lava wheat system was conducted. The results suggest that after applied for 24 days, 14 C phenanthrene in the controlled system degraded fast, and only 0.32 % of it remained in the plant, NS and lava. Most of 14 C activity absorbed by plant was incorporated in plant tissues, and the remains existed prominantly as polar metabolites of phenanthrene.

关 键 词：有害物质 多环芳烃 菲 小麦 ^14C标记 有控系统 

分 类 号：X131[环境科学与工程—环境科学]