| 白令海颗粒有机物碳、氮同位素组成及其生物地球化学意义 |
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| 引用本文： | 林峰,陈敏,童金炉,曹建平,邱雨生,郑敏芳.白令海颗粒有机物碳、氮同位素组成及其生物地球化学意义[J].海洋学报(英文版),2014,33(12):40-47. |
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| 作者姓名： | 林峰 陈敏 童金炉 曹建平 邱雨生 郑敏芳 |
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| 作者单位： | 厦门大学海洋与地球学院, 厦门 361005, 中国;厦门大学海洋与地球学院, 厦门 361005, 中国;近海海洋环境科学国家重点实验室, 厦门 361005, 中国;厦门大学海洋与地球学院, 厦门 361005, 中国;厦门大学海洋与地球学院, 厦门 361005, 中国;厦门大学海洋与地球学院, 厦门 361005, 中国;近海海洋环境科学国家重点实验室, 厦门 361005, 中国;厦门大学海洋与地球学院, 厦门 361005, 中国 |
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| 基金项目： | The Chinese Polar Environment Comprehensive Investigation and Assessment Programs under contract Nos CHINARE2014- 03-04-03 and CHINARE2014-04-03-05; the National Natural Science Foundation of China under contract No. 41125020; the 5th Chinese Arctic Research Program; the Polar Science Strategic Research Foundation of China under contract No. 20120307. |
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| 摘 要： | Stable carbon and nitrogen isotopic composition of particulate organic matter(POM) were measured for samples collected from the Bering Sea in 2010 summer. Particulate organic carbon(POC) and particulate nitrogen(PN) showed high concentrations in the shelf and slope regions and decreased with depth in the slope and basin, indicating that biological processes play an important role on POM distribution. The low C/N ratio and heavy isotopic composition of POM, compared to those from the Alaska River, suggested a predominant contribution of marine biogenic organic matter in the Bering Sea. The fact that δ13C and δ15N generally increased with depth in the Bering Sea basin demonstrated that organic components with light carbon or nitrogen were decomposed preferentially during their transport to deep water. However, the high δ13C and δ15N observed in shelf bottom water were mostly resulted from sediment resuspension.
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| 关 键 词： | 颗粒有机物 颗粒有机碳 同位素组成 氮同位素 生物地球化学 白令海 POM 组成测定 |
| 收稿时间： | 3/1/2014 12:00:00 AM |
| 修稿时间： | 7/8/2014 12:00:00 AM |
Carbon and nitrogen isotopic composition of particulate organic matter and its biogeochemical implication in the Bering Sea |
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| LIN Feng,CHEN Min,TONG Jinlu,CAO Jianping,QIU Yusheng and ZHENG Minfang.Carbon and nitrogen isotopic composition of particulate organic matter and its biogeochemical implication in the Bering Sea[J].Acta Oceanologica Sinica,2014,33(12):40-47. |
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| Authors: | LIN Feng CHEN Min TONG Jinlu CAO Jianping QIU Yusheng and ZHENG Minfang |
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| Institution: | 1.College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China2.College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China;State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China |
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| Abstract: | Stable carbon and nitrogen isotopic composition of particulate organic matter (POM) were measured for samples collected from the Bering Sea in 2010 summer. Particulate organic carbon (POC) and particulate nitrogen (PN) showed high concentrations in the shelf and slope regions and decreased with depth in the slope and basin, indicating that biological processes play an important role on POM distribution. The low C/N ratio and heavy isotopic composition of POM, compared to those from the Alaska River, suggested a predominant contribution of marine biogenic organic matter in the Bering Sea. The fact that δ13C and δ15N generally increased with depth in the Bering Sea basin demonstrated that organic components with light carbon or nitrogen were decomposed preferentially during their transport to deep water. However, the high δ153C and δ15N observed in shelf bottom water were mostly resulted from sediment resuspension. |
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| Keywords: | particulate organic matter 13C 15N Bering Sea |
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