| 湄洲湾海水硝化作用研究——^15N-NH4^＋氧化法 |
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| 引用本文： | 郑盛华,蔡真珍,王宪,钟硕良,罗冬莲,杨妙峰,姜双城.湄洲湾海水硝化作用研究——^15N-NH4^＋氧化法[J].福建水产,2013(5):349-354. |
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| 作者姓名： | 郑盛华 蔡真珍 王宪 钟硕良 罗冬莲 杨妙峰 姜双城 |
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| 作者单位： | [1]福建省水产研究所,福建厦门361013 [2]厦门海洋职业技术学院,福建厦门361002 [3]厦门大学海洋与地球学院,福建厦门361005 |
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| 基金项目： | 福建省专项基金（2005021477）;福建省自然科学基金（D0610020）. |
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| 摘 要： | 本文利用^15N-NH4^＋氧化法对湄洲湾近岸水体的硝化作用进行深入研究.结果表明,湄洲湾近岸水体硝化速率范围在0.51～ 4.60 μmol·L-1·d-1.养殖区附近较高的硝化速率,有利于海水对NH4^＋-N污染物的自净作用,当水体硝化作用强烈时,水中的NO3^-的浓度也随之升高,表明海水中NO3^-主要来自于细菌的硝化作用.湄洲湾海水NH4^＋-N的周转时间在1～9d,表层水体的NH4^＋-N转化时间高于底层水.硝化作用转化NH4＋为NO2^-,并最终转化为NO3^-,减少了NH3-N及NH4^＋-N对近岸养殖系统中生物的危害.
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| 关 键 词： | 硝化作用 ^15N-NH4^＋氧化法 湄洲湾 |
Research of nitrification in coastal water of Meizhou Bay [15N] ammonium oxidation method |
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| ZHENG Sheng-hua,CAI Zhen-zhen,WANG Xian,ZHONG Shuo-liang,LUO Dong-lian,YANG Miao-feng,JIANG Shuang-cheng.Research of nitrification in coastal water of Meizhou Bay [15N] ammonium oxidation method[J].Journal of Fujian Fisheries,2013(5):349-354. |
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| Authors: | ZHENG Sheng-hua CAI Zhen-zhen WANG Xian ZHONG Shuo-liang LUO Dong-lian YANG Miao-feng JIANG Shuang-cheng |
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| Institution: | 1. Fisheries Research Institute of Fujian, Xiamen 361013, China： 2. Xiamen Ocean Vocational College, Xiamen 361002, China： 3. College of Ocean ＆ Earth Science, Xiamen University, Xiamen 361005, China) |
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| Abstract: | These studies were conducted to estimate nitrification in coastal water of Meizhou Bay by 15N ] ammonium oxidation method. The nitrification rate of 0. 51 - 4.60 μmol . L-I . d-1 were recorded, and the higher nitrification rate in water close to aquaculture area were propitious to ammonium self - purification. Higher nitrification rate was observed at high NO3 concentration water column, which showed NO3- produced mostly from nitrification. The biological turnover times for NH~ were short （1 -9 d） in coastal water of Meizhou Bay with the longer turnover times in surface seawater. Nitrification transformed NH4 to NO2- , final to NO3 , reducing the harm to organisms of coastal aquaculture system resulted from NH3 -N and NH4 -N. |
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| Keywords: | nitrification [ 15N ] ammonium oxidation method Meizhou Bay |
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