华东师范大学学报(自然科学版) ›› 2006, Vol. 2006 ›› Issue (4): 127-133.

• 环境科学 • 上一篇    下一篇

苏州河底泥疏浚对围隔中水生生态系统的影响

戚仁海, 徐亚同, 刘 赟   

  1. 华东师范大学 环境科学系，上海 200062
  • 收稿日期:2005-03-25 修回日期:2005-09-07 出版日期:2006-07-25 发布日期:2006-07-25
  • 通讯作者: 戚仁海

Influence of Dredging on Suzhou Creek Ecology System(Chinese)

QI Ren-hai, XU Ya-tong, LIU Yun   

  1. Department of Environment Science, East China Noemal University, Shanghai 200062,China
  • Received:2005-03-25 Revised:2005-09-07 Online:2006-07-25 Published:2006-07-25
  • Contact: QI Ren-hai

摘要： 通过底泥疏浚的围隔试验，对疏浚前后水质状况、浮游生物、微生物数量以及水体对生物的毒性进行对比，结果显示，疏浚使水质有所改善，水体中重金属浓度基本处于稳定；对微生物的数量没有太大的不良影响，且可以很快恢复到原来的水平；疏浚后水体的生物毒性降低，表现在疏浚后河水对发光细菌的毒性降低，试验动物死亡率下降，肝体比下降，精子异常发生率下降.因此，苏州河合理的底泥疏浚有利于水生生态系统的恢复.

关键词: 苏州河, 底泥, 疏浚, 水生生态系统, 生物毒性, 苏州河, 底泥, 疏浚, 水生生态系统, 生物毒性

Abstract: This study investigated the effects of dredging on the water quality, the quantity of plankton and microbe, and the toxicity of sediment. The results were as follows: after dredging, the water quality was improved; the concentration of heavy metal in water held the line; the variety of the microbe quantity was not obvious and might be recovered soon; and the toxicity of sediment was relatively weak, it included that the toxicity of sediment for the luminescent bacteria was depressed; the death rate of animal declined; the rate of liver in avoirdupois declined; and the rate of exceptional mouse sperm declined. It is suggested that dredging in Suzhou creek helped for the recovery of the aquatic ecosystem.

Key words: sediment, dredging, aquatic ecosystem, toxicity, Suzhou creek, sediment, dredging, aquatic ecosystem, toxicity

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