首页 | 本学科首页   官方微博 | 高级检索  
     

不同氮源和曝气方式对淡水藻类生长的影响
引用本文:刘春光,金相灿,孙凌,孙红文,朱琳,于洋,戴树桂,庄源益. 不同氮源和曝气方式对淡水藻类生长的影响[J]. 环境科学, 2006, 27(1): 101-104
作者姓名:刘春光  金相灿  孙凌  孙红文  朱琳  于洋  戴树桂  庄源益
作者单位:南开大学环境科学与工程学院天津市生态环境修复与污染防治重点实验室,天津,300071;中国环境科学研究院,北京,100012;南开大学环境科学与工程学院天津市生态环境修复与污染防治重点实验室,天津,300071;天津大学环境科学与工程学院,天津,300072
基金项目:国家重点基础研究发展计划(973)项目(2002CB412301);国家高技术研究发展计划(863)项目(2003AA601030);南开大学-天津大学科技合作项目(AJ0013)
摘    要:利用水族箱微宇宙研究了2种氮源水体中不同曝气条件对藻类生长的影响.试验使用铵态氮(NH4+-N)和硝态氮(NO3--N)作为氮源,每种氮源水体分别设置不曝气、连续曝气、昼间曝气和夜间曝气4个处理.结果显示:试验初期以NH4+-N为主要氮源的水体中藻类生长明显好于以NO3--N为主要氮源的水体.试验后期则以NO3--N为主要氮源的藻类生长情况更好.连续曝气对于2种氮源水体中藻类生长有着不同的影响;昼间曝气对2种氮源的藻类生长影响不大;而夜间曝气对藻类生长有明显的抑制作用.NH4+-N含量较高的水体中蓝藻容易成为优势种,而NO3--N含量高的水体中则以绿藻为主.不同曝气条件下藻类优势种没有明显差别.

关 键 词:氮源  曝气方式  藻类  叶绿素  优势种
文章编号:0250-3301(2006)01-0101-04
收稿时间:2004-12-30
修稿时间:2004-12-302005-03-14

Effects of Nitrogen Source and Aeration Mode on Algae Growth in Freshwater
''LIU Chun-guang,JIN Xiang-can,SUN Ling,SUN Hongwen,ZHU Lin,YU Yang,Dai Shu-gui and ZHUANG Yuan-yi. Effects of Nitrogen Source and Aeration Mode on Algae Growth in Freshwater[J]. Chinese Journal of Environmental Science, 2006, 27(1): 101-104
Authors:''LIU Chun-guang  JIN Xiang-can  SUN Ling  SUN Hongwen  ZHU Lin  YU Yang  Dai Shu-gui  ZHUANG Yuan-yi
Affiliation:Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China. liuchunguang@nankai.edu.cn
Abstract:Aquarium microcosms were used to study the effects of nitrogen source and aeration mode on the growth and species changes of algae in freshwater.Nitrate nitrogen(NO3--N) and ammonia nitrogen(NH4+-N) were used as nitrogen sources.For each nitrogen source,four modes of aeration were selected, including control,continuous aeration,aeration during the day,and aeration at night.In the early stage of the experiment,algae in the NH4+-N treatment experiment grew well.In the later stage,algae in the NO3--N treatment experiment grew better.For different aeration modes,continuous aeration show varied effects on algae growth in the two nitrogen source treatments.Day-only aeration had little effect on algae growth.Night-only aeration inhibited algae growth considerably.In NH4+-N treatments,cyanophyta became dominant species easily.In contrast,chlorophyta dominated in NO3--N treatments.
Keywords:nitrogen sources  aeration patterns  algae  chlorophyll  dominant species
本文献已被 CNKI 维普 万方数据 PubMed 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》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号