| 水动力条件对富营养化影响规律探讨 |
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| 引用本文： | 李锦秀,杜斌,孙以三.水动力条件对富营养化影响规律探讨[J].水利水电技术,2005,36(5):15-18. |
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| 作者姓名： | 李锦秀 杜斌 孙以三 |
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| 作者单位： | 1. 中国水利水电科学研究院,北京,100038
2. 长江水利委员会,水文局,湖北,武汉,430010 |
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| 摘 要： | 富营养化防治的技术关键，是需要了解抑制藻类生长的外部环境条件及其影响作用规律．基于国内外对气候条件和营养盐条件对藻类生长速率影响研究成果基础上，采用机理分析和实际案例分析相结合的方法，重点探讨了以流速为表征要素的水动力条件对藻类生长速率的影响特点，并且以三峡库区支流大宁河为例，初步建立了流速对藻类生长速率影响规律的经验关系式，为预测三峡库区富营养化演变态势提供基础，进而为有效防治富营养化提供技术支撑．
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| 关 键 词： | 水动力 藻类 生长速率 三峡库区 支流 |
| 文章编号： | 1000-0860(2005)05-0015-04 |
| 修稿时间： | 2004年11月11 |
Effect of hydrodynamics on the eutrophication |
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| LI Jin-xiu,DU Bin,SUN Yi-san.Effect of hydrodynamics on the eutrophication[J].Water Resources and Hydropower Engineering,2005,36(5):15-18. |
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| Authors: | LI Jin-xiu DU Bin SUN Yi-san |
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| Abstract: | The key technology to make the effective measures for the control of the eutrophication is to understand the external environmental factors of restraining the algal growth. The effect of hydrodynamics on the algal growth rate is mainly studied herein based on the analysis of the algal growth mechanism and the measurement data of the Daninghe river which is a branch of Three-Gorges Reservoir, and then an empirical formula of the algal growth rate related with water velocity is proposed for the Daninghe River; which can be used to predict the change status of the eutrophication of the branch when the water velocity is decreased with the increase of water level of the Three Gorges Reservoir. |
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| Keywords: | hydrodynamics algal growth rate Three Gorges Reservoir branch |
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