| 营养盐对白洋淀草型富营养化的驱动与限制 |
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| 引用本文： | 王珺,裴元生,杨志峰.营养盐对白洋淀草型富营养化的驱动与限制[J].中国环境科学,2010,30(Z1):7-13. |
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| 作者姓名： | 王珺 裴元生 杨志峰 |
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| 作者单位： | 北京师范大学环境学院,水环境模拟国家重点实验室,北京,100875 |
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| 基金项目： | 国家自然科学基金资助项目，水体污染控制与治理科技重大专项 |
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| 摘 要： | 对流入白洋淀的府河水体及沉积物中氮、磷营养元素进行了测试,并结合1991~2007年的历史数据,研究了白洋淀富营养化的基本特征及营养盐驱动机制.结果表明,府河氮、磷浓度严重超标,属于劣Ⅴ类水体.草型湖泊水生植物的生长与水体中营养盐限制类型密切相关.在高营养盐浓度下,水体氮、磷相对比(N/P)为14~16时,有利于水生高等植物生长,促使芦苇成为白洋淀优势物种.草型富营养化是白洋淀的基本特征,氮是湖泊草型富营养化的限制因子.通过降低府河输入白洋淀的含氮污染物总量,可有效缓解白洋淀草型富营养化状况.
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| 关 键 词： | 草型富营养化 氮 叶绿素a (Chl. a) N/P 白洋淀 |
| 收稿时间： | 2009-10-30; |
Effects of nutrients on the plant type eutrophication of the Baiyangdian Lake |
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| WANG Jun,PEI Yuan-sheng,YANG Zhi-feng.Effects of nutrients on the plant type eutrophication of the Baiyangdian Lake[J].China Environmental Science,2010,30(Z1):7-13. |
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| Authors: | WANG Jun PEI Yuan-sheng YANG Zhi-feng |
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| Institution: | WANG Jun,PEI Yuan-sheng,YANG Zhi-feng(State Key Laboratory of Water Environment Simulation,School of Environment,Beijing Normal University,Beijing 100875,China) |
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| Abstract: | The eutrophic status of the Baiyangdian Lake was investigated based on the analysis of water and sediment samples from 2008 and historical data from 1991 to 2007.The water quality of the Fuhe River,which is the major tributary into the lake,was worse than that required by Grade V.The primary production of the plant type lake was closely linked to nutrient limitation in the river water rather than that in the sediments.Under higher nutrient concentrations,the mass ratio of nitrogen to phosphorus(N/P) in the ... |
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| Keywords: | N/P plant type eutrophication nitrogen Chl a N/P Baiyangdian Lake |
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