| 铜绿微囊藻在竞争生长条件下对氧化还原电位降低的响应 |
| |
| 引用本文： | 张民,孔繁翔,史小丽,邢鹏,谭啸.铜绿微囊藻在竞争生长条件下对氧化还原电位降低的响应[J].湖泊科学,2007,19(2):118-124. |
| |
| 作者姓名： | 张民 孔繁翔 史小丽 邢鹏 谭啸 |
| |
| 作者单位： | 1. 中国科学院南京地理与湖泊研究所,南京,210008;中国科学院研究生院,北京,100039;南京信息工程大学,南京,210044
2. 中国科学院南京地理与湖泊研究所,南京,210008 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划)
,
中国科学院知识创新工程项目 |
| |
| 摘 要： | 在室内研究了有、无伊乐藻存在条件下,不同水平的氮及氮磷比(N/P)对实验体系中附着藻类和浮游藻类生长的影响,结果表明:1)在有沉水植物的体系中,当氮浓度较高时(5 mg/L),浮游藻类对N/P的变化比附着藻类更为敏感;而当氮浓度较低时(2 mg/L),浮游藻类与附着藻类对N/P的响应则没有显著的差异;2)在有沉水植物的体系中,当N/P为15时,随水体中氮浓度的升高,附着藻类的生物量显著增加,但浮游藻类的变化不显著.当N/P为25时,随水体中氮浓度的升高,浮游藻类及附着藻类的生物量均显著升高;3)附着藻类的生物量在无沉水植物(伊乐藻)存在的情况下要比有沉水植物(伊乐藻)存在时高得多,且随氮浓度升高,其生物量的增加量也远高于后者.而对浮游藻类而言,情况则完全相反.
|
| 关 键 词： | 附着藻类 浮游藻类 营养盐 太湖 氮磷比 附着 浮游藻类 影响 phytoplankton nutrient 完全 增加量 浓度升高 情况 生物量 水体 差异 响应 敏感 变化 氮浓度 实验体系 沉水植物 结果 |
| 收稿时间： | 2006-02-20 |
| 修稿时间： | 2006-07-12 |
Responses of Microcystis aeruginosa to reducing oxidation reduction potential under competition growth condition |
| |
| ZHANG Min,KONG Fanxiang,SHI Xiaoli,XING Peng and TAN Xiao.Responses of Microcystis aeruginosa to reducing oxidation reduction potential under competition growth condition[J].Journal of Lake Science,2007,19(2):118-124. |
| |
| Authors: | ZHANG Min KONG Fanxiang SHI Xiaoli XING Peng and TAN Xiao |
| |
| Institution: | Nanjing Institute of Geography and Limnology, Chinese Acadamy of Sciences, Nanjing 20008, P.R.China;Graduate School of Chinese Acadamy of Sciences, Beijing 10039, P.R.China,Nanjing Institute of Geography and Limnology, Chinese Acadamy of Sciences, Nanjing 20008, P.R.China,Nanjing Institute of Geography and Limnology, Chinese Acadamy of Sciences, Nanjing 20008, P.R.China,Nanjing Institute of Geography and Limnology, Chinese Acadamy of Sciences, Nanjing 20008, P.R.China;Graduate School of Chinese Acadamy of Sciences, Beijing 10039, P.R.China and Nanjing Institute of Geography and Limnology, Chinese Acadamy of Sciences, Nanjing 20008, P.R.China;Graduate School of Chinese Acadamy of Sciences, Beijing 10039, P.R.China |
| |
| Abstract: | The effects of nutrients on periphytton and phytoplankton in the condition with and without macrophyte were studied.The results show:1) When the nitrogen concentration was 5 mg/L,the effects of the nitrogen vs phosphorus ratio on phytoplankton were more sensitive than periphyton.While the nitrogen concentration was 2 mg/ L,this effect was no significant different between the periphyton and phytoplankton.2) When the ratio of nitrogen vs phosphorus was 15,the periphyton biomass increased significantly following the increasing of nitrogen,but hyto- plankton biomass was relatively stable.When this ratio was 25,the biomass of both periphyton and phytoplankton were increased significantly following the increment of nitrogen.3) The periphyton biomass was higher and in- creased more fast following the increasing of nitrogen in the condition without macrophyte than with macrnphyte, while it was reverse for the phytoplankton. |
| |
| Keywords: | Periphtic algae phytoplankton nutrient Lake Taihu |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《湖泊科学》浏览原始摘要信息 |
| 点击此处可从《湖泊科学》下载免费的PDF全文 |
|
