| 北京城区水华发生氮磷比变化趋势及原因分析 |
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| 引用本文： | 崔莉凤,游亮,黄振芳,刘载文.北京城区水华发生氮磷比变化趋势及原因分析[J].环境科学与技术,2007,30(10):47-49. |
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| 作者姓名： | 崔莉凤 游亮 黄振芳 刘载文 |
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| 作者单位： | 1. 北京工商大学,北京,100037
2. 北京市水文总站,北京,100039 |
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| 摘 要： | 分析了北京什刹海水体的总氮、总磷、氮磷比以及叶绿素的数据,发现氮磷比在水华发生过程中有明显的规律性。三个监测点氮磷比全年呈下降→平稳的变化趋势。藻类复苏期氮磷比为15:1左右,藻类指数增长期稳定在5:1左右,氮磷比的降低是水华产生的结果。监测数据表明藻类在大量生长时主要受氮的影响,表现为氮限制性河湖。
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| 关 键 词： | 富营养化 总氮 总磷 氮磷比 |
| 文章编号： | 1003-6504（2007）10-0047-03 |
| 修稿时间： | 2006-11-20 |
TN/TP Ratio of Lake Water and Its Implication in Algae Bloom of Beijing's Urban Lake |
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| CUI Li-feng,YOU Liang,HUANG Zhen-fang,LIU Zai-wen.TN/TP Ratio of Lake Water and Its Implication in Algae Bloom of Beijing''''s Urban Lake[J].Environmental Science and Technology,2007,30(10):47-49. |
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| Authors: | CUI Li-feng YOU Liang HUANG Zhen-fang LIU Zai-wen |
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| Abstract: | Ratio of TN/TP was investigated in an urban lake in Beijng with respect to variation of the ratios during different seasons. The study found that the ratio was much higher during algae resuscitation period than during algae reproduction period. According to the investigation,it was concluded that the limiting factor of nutrient for algae growing was nitrogen. |
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| Keywords: | eutrophication total nitrogen (TN) total phosphorus (TP) ratio |
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