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生态学杂志 ›› 2005, Vol. ›› Issue (9): 1106-1109.

• 研究简报 • 上一篇    下一篇

应用微核技术对北京三海水域污染状况的研究

李雅轩, 胡英考, 蔡民华, 乔立光, 李杰   

  1. 首都师范大学生命科学学院, 北京, 100037
  • 收稿日期:2004-10-25 修回日期:2004-11-29 出版日期:2005-09-10
  • 通讯作者: 李雅轩,女,1965出生,硕士,副教授.主要从事植物分子细胞遗传学方面的研究.E-mail:lyx1006@sohu.com
  • 基金资助:
    北京市教育委员会科技发展计划资助项目(200310028112)

Study on water pollution of Sanhai in Beijing with micronucleus test method

LI Yaxuan, HU Yingkao, CAI Minhua, QIAO Liguang, LI Jie   

  1. College of Life Science, Capital Normal University, Beijing 100037, China
  • Received:2004-10-25 Revised:2004-11-29 Online:2005-09-10

摘要: 2003和2004年于北京三海(西海、后海和前海)分别采集21、22个样品,利用蚕豆根尖微核技术对水体的污染状况进行了遗传毒性分析。结果表明,水体总体显示出不同程度的遗传毒性特征。2003、2004两年中,微核相对率<1.5的样本分别占4.7619%、18.1818%,主要分布于前海和后海湖心区域;微核相对率为1.5~2.0的样本分别占28.5714%和13.6364%;微核相对率为2.0~3.5的样本分别占28.5714%和45.4545%;微核相对率>3.5的样本分别占38.0952%和22.7273%。其中,在民居密集的西海区域,两年重度污染率均达到40%。结果表明,水体污染程度与人为因素具有显著相关。本文对试验方法亦进行了讨论。

关键词: 天然沸石, 土壤养分, 生物有效性, 土壤化学性质

Abstract: The micronucleus test with Vicia faba root tip cell was used to study the water pollution of Sanhai in Beijing with 21 and 22 samples respectively in 2003 and 2004.The results showed that the whole aquatic area was polluted and appeared genetic toxicity.The sample frequencies with micronucleus rates lower than 1.5 were 476% and 18.18%,respectively,which distributed in the center of Qianhai and Houhai.The samples of micronucleus rates between 15~20 were 28.57% and 13.64%.However,the samples of micronucleus rates between 2.0~3.5 were 28.57% and 45.45%.The samples which micronucleus rates were higher than 3.5 were 38.0% and 22.7%.Among these sample sites,the densely populated Xihai was heavily polluted.

Key words: Natural zeolite, Soil nutrient, Bioavailability, Soil chemical property

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