抚顺市突发性氯气污染事故对植物影响的生态调查

1　引　言突发性环境污染是指在非正常情况下的污染,它有一定的特殊性。它没有固定的排放方式和排放途径,具有突发性,在瞬时或短时间内大量排放污染物质,对生态环境造成严重污染和破坏,给人民生命财产造成重大损失。这类污染事故越来越引起世界各国环境学家和政府的重视,正在探索如何防止突发性环境污染事故,以及当发生时应当采取的对策1,4]。但对突发性环境污染造成的生态环境影响及长期效应缺乏足够重视,国内外少见报道。本文报道抚顺市突发性氯气污染事故的生态影响调查结果。2　研究的范围、内容和方法2.1　事故发生的背景某年8月一辆…

Ecological Survey of Effects of an Accident of Cl2 Pollution on Plants in Fushun City, Liaoning

The results of ecological survey of effects of an accident of Cl 2 pollution on plants and crops in Fushun city were reported. (1)The closer to the pollution source,the more seriously the plants were harmed. The harm degrees are different from plant to plant. (2)The yields of vegetable (Chine cabbage, turnips) and rice in the polluted area decreased 67%-15% and 38%-5% respectively, and the rate of output positively correlated to the distance between the areas and the pollution source. (3)The sudden harm to trees with strong tolerance such as popular, willow and Acacia by Cl 2 pollution can be recovered soon and no long-term harm was observed. The studies showed that the ecological survey plays an important role in evaluating and dealing with pollution accidents.