石油污灌渠底泥生态毒性诊断研究

应用生态学报 ›› 2005, Vol. 16 ›› Issue (1): 175-179.

石油污灌渠底泥生态毒性诊断研究

宋玉芳^1,2, 周启星^1,2, 宋雪英^1,3, 张薇^1,3, 孙铁珩^1,2

1. 中国科学院沈阳应用生态研究所陆地生态过程重点实验室, 沈阳, 110016;
2. 沈阳大学沈阳环境工程重点实验室, 沈阳, 100041;
3. 中国科学院研究生院, 北京, 100039

收稿日期:2004-02-05 修回日期:2004-05-13 出版日期:2005-01-15 发布日期:2005-01-15
通讯作者: 宋玉芳,女,1954年10月出生,博士,研究员.从事陆地生态系统污染生态学研究,发表论文50余篇.E-mail:Songyufang@hotmail.com
基金资助:
国家自然科学基金重点项目(20337010)、国家自然科学基金项目(20277041)、国家重点基础研究发展规划项目(2004CB418503)、沈阳大学沈阳环境工程重点实验室基金和中国科学院沈阳应用生态研究所海外留学基金资助项目.

Eco-toxicity diagnosis on sediments of petroleum wastewater irrigation channel

SONG Yufang^1,2, ZHOU Qixing^1,2, SONG Xueying^1,3, ZHANG Wei^1,3, SUN Tieheng^1,2

1. Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
2. Key Laboratory of Environmental Engineering, Shenyang University, Shenyang 100041, China;
3. Graduate School of Chinese Academy of Sciences, Beijing 100039, China

Received:2004-02-05 Revised:2004-05-13 Online:2005-01-15 Published:2005-01-15

摘要/Abstract

摘要： 底泥样品采自沈阳东部石油污水灌渠的上、中、下游.进行了重金属Cu、Zn、Pb、Cd、矿物油含量分析和生态毒性试验.结果表明,所有底泥均有污染物积累.矿物油含量为408～118 300 mg·kg^-1,Cu为17.83～78.53 mg·kg^-1,Zn为35.76～155.16 mg·kg^-1,Pb为8.50～31.03 mg·kg^-1,Cd为0.1 mg·kg^-1～1.0mg·kg^-1.底泥对高等植物有不同程度的生长抑制或刺激效应,对蚯蚓有急性致死及慢性亚致死效应.种子发芽根伸长抑制率为-29.81%～93.8%,蚯蚓14d死亡率最大值为100%.蚯蚓14d和28d体重增长抑制率分别为-36.6%～6.08%和-40.4%～6.1%.研究表明,长期石油污水灌溉导致河道底泥中污染物的积累和较强生态毒性.

关键词: 底泥, 污水灌溉, 生态毒性, 蚯蚓, 高等植物

Abstract: Sediment samples were collected from several sites in the upper,mid and lower reaches of the petroleum wastewater irrigation channel in eastern Shenyang of China,and the concentrations of their Cu,Zn,Pb,Cd and mineral oil were analyzed.The results showed that the pollutants were accumulated in all of sediment samples,with 408～118 300 mg·kg^-1 mineral oil,17.83～78.53 mg·kg^-1 Cu,35.76～155.16 mg·kg^-1 Zn,8.50～31.03 mg·kg^-1 Pb and 0.1～1.0 mg·kg^-1 Cd.The sediments showed an inhibition or stimulation effect on plant root elongation and a lethal and sub-lethal effect on earthworm.The inhibition rate of root elongation based on germination test was-29.81 to 93.8%.During 14 d exposure,the maximum mortality rate of earworm was 100%,and during 14d and 28d exposure,the inhibition rate of its body weight growth was-36.6%～-6.08% and -40.4%～6.1%,respectively.The study indicated that a long-term irrigation with petroleum wastewater resulted in the accumulation of pollutants in channel sediments and enhanced eco-toxicity.

Key words: Sediment, Wastewater irrigation, Eco-toxicity, Earthworm, Higher plant

中图分类号:

X171.5

宋玉芳, 周启星, 宋雪英, 张薇, 孙铁珩. 石油污灌渠底泥生态毒性诊断研究[J]. 应用生态学报, 2005, 16(1): 175-179.

SONG Yufang, ZHOU Qixing, SONG Xueying, ZHANG Wei, SUN Tieheng. Eco-toxicity diagnosis on sediments of petroleum wastewater irrigation channel [J]. Chinese Journal of Applied Ecology, 2005, 16(1): 175-179.

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