摘要
多环芳烃(PAHs)在土壤中达到吸附平衡时存在”快”和”慢”两个吸附过程.植物能够从土壤中吸收低分子量的PAHs并向植物的地上部分迁移转化,但PAHs在植物体内主要的累积方式是植物地上部分的空气污染.微生物对PAHs的降解依然是去除PAHs的主要方式,主要通过微生物产生的酶的作用.本文详细分析了影响PAHs生物去除的各种因素.
Adsorption equilibrium of PAHs in the soil can be reached by two mainly processes, 'quick' and 'slow'. Although PAHs with low molecular may be absorbed by the plant root, and transferred and transformed into other upper part of plant, the main accumulation pathway for PAHs in plant is from the air to the leaf surface. Micro-bial degradation of PAHs by its enzymatic capacity is the main process of the degradation of PAHs in nature. In addition, factors effecting the biodegradation of PAHs are analyzed in details in this review.
出处
《应用生态学报》
CAS
CSCD
2002年第4期501-504,共4页
Chinese Journal of Applied Ecology
基金
国家自然科学基金资助项目(29677021).
