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南极普里兹湾及其邻近海域悬浮颗粒有机物的碳同位素组成及其影响因素

任春燕 陈敏 高众勇 郭劳动 贾仁明 刘萧 邱雨生 郑敏芳

任春燕, 陈敏, 高众勇, 郭劳动, 贾仁明, 刘萧, 邱雨生, 郑敏芳. 南极普里兹湾及其邻近海域悬浮颗粒有机物的碳同位素组成及其影响因素[J]. 海洋学报, 2015, 37(12): 74-84. doi: 10.3969/j.issn.0253-4193.2015.12.008
引用本文: 任春燕, 陈敏, 高众勇, 郭劳动, 贾仁明, 刘萧, 邱雨生, 郑敏芳. 南极普里兹湾及其邻近海域悬浮颗粒有机物的碳同位素组成及其影响因素[J]. 海洋学报, 2015, 37(12): 74-84. doi: 10.3969/j.issn.0253-4193.2015.12.008
Ren Chunyan, Chen Min, Gao Zhongyong, Guo Laodong, Jia Renming, Liu Xiao, Qiu Yusheng, Zheng Minfang. Stable carbon isotopic composition of suspended particulate organic matter in the Prydz Bay and its adjacent areas[J]. Haiyang Xuebao, 2015, 37(12): 74-84. doi: 10.3969/j.issn.0253-4193.2015.12.008
Citation: Ren Chunyan, Chen Min, Gao Zhongyong, Guo Laodong, Jia Renming, Liu Xiao, Qiu Yusheng, Zheng Minfang. Stable carbon isotopic composition of suspended particulate organic matter in the Prydz Bay and its adjacent areas[J]. Haiyang Xuebao, 2015, 37(12): 74-84. doi: 10.3969/j.issn.0253-4193.2015.12.008

南极普里兹湾及其邻近海域悬浮颗粒有机物的碳同位素组成及其影响因素

doi: 10.3969/j.issn.0253-4193.2015.12.008
基金项目: 南北极环境综合考察与评估专项(CHINARE01-04-03,04-01-06,04-04,04-03-05);国家自然科学基金杰出青年基金项目(41125020)。

Stable carbon isotopic composition of suspended particulate organic matter in the Prydz Bay and its adjacent areas

  • 摘要: 依托中国第29次南极科学考察航次开展了南大洋普里兹湾及其邻近海域悬浮颗粒有机物碳同位素组成(δ13CPOC)的研究,结合温度、盐度、营养盐和溶解CO2的数据,揭示了影响研究海域颗粒有机物碳同位素组成的主控因素,计算出混合层中浮游植物吸收无机碳过程的碳同位素分馏因子。结果表明,普里兹湾及其邻近海域的δ13CPOC介于-28.5‰~-21.1‰,平均值为-24.6‰,表现出湾内大于湾外的特征。浮游植物同化吸收CO2过程的碳同位素分馏是影响研究海域混合层δ13CPOC的主要因素,根据δ13CPOC和1/[CO2(aq)]的线性拟合关系,计算出浮游植物同化吸收CO2过程的碳同位素分馏因子εp为23.4‰。δ13CPOC的垂直分布随深度增加而增大,反映出颗粒有机物垂向输送过程中颗粒有机物再矿化过程同位素分馏作用的影响。
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  • 收稿日期:  2015-09-30
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