| 珠江口淇澳岛海岸带反硝化作用研究 |
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| 引用本文： | 覃超梅,周怀阳,吴自军,邓雄. 珠江口淇澳岛海岸带反硝化作用研究[J]. 海洋科学, 2009, 33(2): 74-79 |
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| 作者姓名： | 覃超梅 周怀阳 吴自军 邓雄 |
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| 作者单位： | 环境保护部华南环境科学研究所,广东,广州,510655;中国科学院广州地球化学研究所,广东,广州,510640 |
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| 基金项目： | 中国科学院广州地球化学研究所知识创新工程领域前沿项目,广东省博士科研启动基金 |
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| 摘 要： | 采用N2通量法,在一套连续流动培养装置中测定珠江口淇澳岛海岸带的反硝化速率,探讨各种因素对淇澳岛海岸带反硝化速率的影响.结果表明,反硝化速率受NO3-的利用率影响,而不是NO3-的绝对浓度.大型红树植物对淇澳岛海岸带的反硝化速率影响最大,其次是硝酸盐利用率,而有机质含量的影响较小.由于大型红树植物的影响,样品Q0411-5的反硝化速率比同在岛内的Q0411-3高出1倍.样品Q0412-14的NO3-培养前后的浓度变化(△NO3-)是Q0412-9的4倍多,因为受硝酸盐利用率的影响,它的反硝化速率却是Q0412-9的2倍多.温度对反硝化速率的影响程度尚不能确定.
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| 关 键 词： | 珠江口淇澳岛 反硝化作用 反硝化速率 影响因素 |
| 收稿时间： | 2006-10-26 |
The study of denitrification rate in Qi'ao island coastal zone,Pearl River estuary |
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| QIN Chao-mei,ZHOU Huai-yang,WU Zi-jun and DENG Xiong. The study of denitrification rate in Qi'ao island coastal zone,Pearl River estuary[J]. Marine Sciences, 2009, 33(2): 74-79 |
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| Authors: | QIN Chao-mei ZHOU Huai-yang WU Zi-jun DENG Xiong |
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| Affiliation: | 1.South China Institute of Environmental Sciences;SEPA;Guangzhou 510655;China;2.Guangzhou Institute of Geochemistry Chinese Academy of Science;Guangzhou 510640;China |
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| Abstract: | By means of the N2 flux method,denitrification rates of five sediment samples are measured using a continuous flow-through systems for studing the effect of various factors on denitrification in the studying area.The results are as follows:Denitrification rate is not limited by the absolute concentration of NO-3,but the availability of NO-3.The effect of macrophyte on denitrification rate in coastal zone of Qi'ao island is the most important,the following is availability of NO-3,the effect of organic carbon... |
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| Keywords: | Qi'ao island at Pearl River estuary denitrification denitrification rate affecting factors |
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