| 闽江流域水体氨氮降解系数实验模拟研究 |
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| 引用本文： | 游雪静,张玉珍,苏玉萍,陈锦,姜炳棋,林燕秋.闽江流域水体氨氮降解系数实验模拟研究[J].福建地理,2014(1):61-67. |
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| 作者姓名： | 游雪静 张玉珍 苏玉萍 陈锦 姜炳棋 林燕秋 |
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| 作者单位： | [1]福建师范大学环境科学与工程学院,福州350007 [2]福建省环境科学研究院,福州350003 |
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| 基金项目： | 福建省环境科学研究院横向项目（HE0551）、公益类科研院所专项（2001R1004,DH756）资助 |
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| 摘 要： | 本研究采用模拟实验对闽江流域氨氮的降解规律进行研究,降解系数采用稳态一维降解模型进行分析计算,闽江上游流域氨氮的平均降解系数为0.140~0.260 d-1,中下游流域氨氮的平均降解系数为0.099~0.203 d-1。结果表明,闽江上游流域氨氮自净能力比中下游流域的自净能力好,古田溪断面的氨氮平均降解系数低于全国的平均值,说明氨氮自净能力相对较弱,本研究为确定流域水环境容量和纳污能力及制定污染物总量控制提供科学依据。
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| 关 键 词： | 闽江流域 氨氮 降解系数 |
A Study on Degradation Coefficients of Ammonia-Nitrogen in Minjiang Basin |
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| YOU Xue-jing,ZHANG Yu-zhen,SU Yu-ping,CHEN Jin,JIANG Bing-qi,LIN Yan-qiu.A Study on Degradation Coefficients of Ammonia-Nitrogen in Minjiang Basin[J].Fujian Geography,2014(1):61-67. |
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| Authors: | YOU Xue-jing ZHANG Yu-zhen SU Yu-ping CHEN Jin JIANG Bing-qi LIN Yan-qiu |
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| Institution: | 1. Environmental Science and Engineering College, Fujian Normal University, Fuzhou 350007, China; 2. Fujian Provincial Academy of Environmental Science, Fuzhou 350003, China) |
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| Abstract: | Degradation coefficients of ammonia nitrogen in Minjiang Basin were studied by indoor simu-lation experiment .One-dimensional steady degradation model was used for analysis and evaluation , showing that the average ammonia nitrogen degradation coefficients of the upper Minjiang Basin ranges from 0.140 d-1 to 0.260 d -1 and the coefficients of the middle and lower reaches ranges from 0.099 d-1 to 0.203 d-1 .The investigation also indicated that ammonia self-purification ability of the upper basin was relatively high , comparing to low degradation rate in middle and lower reaches .The average degradation coefficients of Gutian section were lower than national average .This indicated that ammo-nia self-purification capability is weak .This study will help to determinate water environmental capaci-ty, pollutant carrying capacity and total amount control of pollutants . |
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| Keywords: | Minjiang Basin ammonia-nitrogen degradation coefficients |
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