柴油的挥发损失以及柴油对种子萌发和幼苗生长的影响。

Losses of diesel oil by volatilisation and effects of diesel oil on seed germination and seedling growth.

作者信息

Kroening S J, Leung D W, Greenfield L G, Galilee C

机构信息

Department of Plant and Microbial Sciences, University of Canterbury, Christchurch, New Zealand.

出版信息

Environ Technol. 2001 Sep;22(9):1113-7. doi: 10.1080/09593332208618221.

DOI:10.1080/09593332208618221

PMID:11816772

Abstract

For phytoremediation to be effective, seeds must germinate and subsequently grow, or seedlings must become established, in contaminated soil. In this study, the effect of diesel oil on the viability of seeds of white clover and ryegrass together with long term abiotic diesel oil loss were investigated. Losses of diesel by volatilisation were found to be as high as 58% over 360 days suggesting that volatilisation (abiotic loss) may be a significant method of contaminant removal that may have been previously underestimated or overlooked in short term studies. White clover and ryegrass seeds were able to germinate in the presence of volatile diesel components and following 24 weeks immersion in diesel oil, which suggested that properties of their seed coats prevented diesel oil causing damage to the seeds.

摘要

为使植物修复有效，种子必须在受污染土壤中发芽并随后生长，或者幼苗必须扎根。在本研究中，调查了柴油对白三叶草和黑麦草种子活力的影响以及柴油长期的非生物损失情况。结果发现，在360天内，柴油挥发损失高达58%，这表明挥发（非生物损失）可能是一种重要的污染物去除方法，而在短期研究中这一点可能之前被低估或忽视了。白三叶草和黑麦草种子能够在挥发性柴油成分存在的情况下发芽，并且在柴油中浸泡24周后仍能发芽，这表明它们种皮的特性可防止柴油对种子造成损害。