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南沙群岛西部海域两柱状沉积物中碳和氮的分布和来源特征及埋藏通量估算
Authors
党爱翠
陈绍勇
+3 more
马福俊
高学鲁
龙爱民
Publication date
31 December 2007
Publisher
Abstract
对位于南沙群岛海域西部近大陆架-残留沉积区(NS01站)和深海沉积区(NS02站)的2个沉积物柱状样进行了研究,测定了它们的粒度组成、CaCO3含量、总有机碳含量(TOC)、总碳含量(TC)、总有机物含量(TOM)和总氮含量(TN),估算了它们的埋藏通量及陆/海源TOC和TN的相对含量.结果表明,该海域沉积物主要是粒径小于63μm的细粒度组分,粒度组成随深度的变化很小.沉积物粒度不是控制CaCO3含量、TOC、TC、TOM、TN和TOC/TN垂向变化的主要因素.NS01站CaCO3含量、TOC、TC、TOM和TN的含量及埋藏通量均低于NS02站.NS01站TOC/TN随深度的变化主要受控于TN的变化,而NS02站则主要受控于TOC的变化.2个研究站位的TOC和TN均以海洋自生为主,NS01站沉积物中海洋自生TOC和TN的平均值分别为53.2%和81.4%,NS02站沉积物中海洋自生TOC和TN的平均值分别为64.5%和87.7%
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Institutional Repository of Yantai Institute of Coastal Zone Research, CAS
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oai:ir.yic.ac.cn:133337/4183
Last time updated on 18/09/2018
Institutional Repository of Yantai Institute of Coastal Zone Research, CAS
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oai:ir.yic.ac.cn:133337/32221
Last time updated on 19/08/2023
Institutional Repository of South China Sea Institute of Oceanology, CAS
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oai:ir.scsio.ac.cn:344004/7069
Last time updated on 18/12/2017