| 长江口滨岸潮滩柱样沉积物与孔隙水中氮的垂直分布特征 |
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| 引用本文： | 刘巧梅,刘敏,许世远,侯立军,欧冬妮.长江口滨岸潮滩柱样沉积物与孔隙水中氮的垂直分布特征[J].海洋科学,2004,28(9):13-19. |
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| 作者姓名： | 刘巧梅 刘敏 许世远 侯立军 欧冬妮 |
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| 作者单位： | 华东师范大学地理系,教育部地理信息重点实验室,上海,200062 |
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| 基金项目： | 国家自然科学基金资助项目(40131020，49801018)，教育部高等学校骨干教师资助计划项目，上海市重点学科资助项目 |
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| 摘 要： | 对长江口滨岸潮滩柱样沉积物及孔隙水中NH4^ -N、NO3^--N和NO2^--N的剖面进行了分析。结果表明，沉积物和孔隙水中NH4^ -N，NO3^--N和NO2^--N剖面分布基本一致，其中NH4^ -N含量最高，这说明有机质的降解反应主要是在缺氧或无氧环境中进行的；沉积物中有机质含量与NH4^ -N含量线性相关；NO3^--N和NO2^--N在剖面中以0～20cm变化剧烈，说明表层和深层有机质的降解程度发生改变。
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| 关 键 词： | 柱样沉积物 孔隙水 无机态氮 潮滩 长江口 |
| 文章编号： | 1000-3096(2004)09-0013-07 |
| 收稿时间： | 2003/6/23 0:00:00 |
| 修稿时间： | 2003年6月23日 |
Nitrogen profiles in core sediment and interstitial water of tidal flats in Changjiang (Yangtze) River Estuary |
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| LIU Qiao-mei,LIU Min,XU Shi-yuan,HOU Li-jun,OU Dong-ni.Nitrogen profiles in core sediment and interstitial water of tidal flats in Changjiang (Yangtze) River Estuary[J].Marine Sciences,2004,28(9):13-19. |
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| Authors: | LIU Qiao-mei LIU Min XU Shi-yuan HOU Li-jun OU Dong-ni |
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| Abstract: | Profile of inorganic nitrogen in interstitial water and sediment were analyzed for the tidal flats in the Changjiang(Yangtze)River Estuary. Results sho w that the profiles of the nitrogen in sediment and in interstitial water are the same, composing of NH+4-N.This result shows that the degradation of organic matter occurred mainly in anaerobic conditions. Relationship between organic matter and NH+4-N of the core sediment is linear. The range of NH-3-N and NH-2-N is wide especially from top 0 cm to 20 cm of the core, Decomposition of organic matter in surface sedimnt is different from that in deeper sediment. |
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| Keywords: | core sediment interstitial water inorganic nitrogen tidal flats the Changjiang(Yangtze)River Estuary |
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