| 三价砷对藻类群落结构的影响 |
| |
| 引用本文： | 高世荣,修瑞琴,郑静,许永香,任改英.三价砷对藻类群落结构的影响[J].环境科学,1997,18(4):79-80. |
| |
| 作者姓名： | 高世荣 修瑞琴 郑静 许永香 任改英 |
| |
| 作者单位： | 中国预防医学科学院环境卫生与卫生工程研究所 |
| |
| 摘 要： | 为了探讨三价砷对微型生物群落结构的影响，进而评价水质，采用Ｃａｉｒｎｓ提出的ＰＦＵ方法在群落级水下上模拟研究了Ａｓ＾３＋对藻类群落的毒性，结果表明，藻类类群随着Ａｓ＾３＋浓度增大而减少，多样性指数随Ａｓ＾３＋浓度增加而明显下降，藻类群落迁入速率随时间延长而下降，消失速度则随时间而上升，Ａｓ＾３＋对藻类群落结构在ＬＯＥＣ为３２ｍｇ／Ｌ和５６ｍｇ／ＬＮＯＥＣ为１ｍｇ／Ｌ，结果表明用藻类群落在ＰＦＵ上群
|
| 关 键 词： | 藻类群落 毒性试验 生物监测 砷 结构 |
| 收稿时间： | 1996/12/11 0:00:00 |
Effects of Arsenic on Algae Communities Structure |
| |
| Gao Shirong,Xiu Ruiqin.Effects of Arsenic on Algae Communities Structure[J].Chinese Journal of Environmental Science,1997,18(4):79-80. |
| |
| Authors: | Gao Shirong Xiu Ruiqin |
| |
| Institution: | Institute of Environmental Health and Engineering, CAPM, Beijing 100050;Institute of Environmental Health and Engineering, CAPM, Beijing 100050;Institute of Environmental Health and Engineering, CAPM, Beijing 100050;Institute of Environmental Health and Engineering, CAPM, Beijing 100050;Institute of Environmental Health and Engineering, CAPM, Beijing 100050 |
| |
| Abstract: | In this study, a simulated test of As3+ toxicity was carried out according to the PFU method reported by Cairns in order to approach the effects of arsenic on algae communities structure as well as to evaluate the quality of the water. The results showed that the algae communities decrease with the arsenicion concentration increasing, and the diversity index decline distinctly with As3+ concent ration increasing. The moving speed of algae communities reduces, but their disappearing speed quickenes with the prolongation of time. The low estob-served effect concent ration(LOEC)and the no observed effect concentration(NOEC)of As3+ for algae communities structure were 32 or 56mg/L and 1mg/L, respectivel. |
| |
| Keywords: | arsenic pollution algae communities water quality evaluation |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《环境科学》浏览原始摘要信息 |
| 点击此处可从《环境科学》下载免费的PDF全文 |
|
