| 南极普里兹湾沉积物中的糖类分布及意义 |
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| 引用本文： | 于培松,扈传昱,朱小萤,潘建明,张海生.南极普里兹湾沉积物中的糖类分布及意义[J].海洋学报,2008,30(1):59-66. |
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| 作者姓名： | 于培松 扈传昱 朱小萤 潘建明 张海生 |
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| 作者单位： | 1.国家海洋局, 海洋生态系统与生物地球化学重点实验室, 浙江, 杭州, 310012 |
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| 基金项目： | 极地战略基金
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国家重点实验室基金 |
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| 摘 要： | 利用中国第18和21次南极考察获取的南极普里兹湾沉积物样品,分析了其中的有机碳和糖类物质的含量及组成,结果表明糖类和有机碳的分布受上层水体的初级生产、地形条件和水体垂直稳定度等多种因素的控制。表层沉积物中糖类物质的平均含量为3.03 mg/g,最高值为5.60mg/g,出现在湾内的毗邻陆架区。沉积物有机碳含量与表层海水叶绿素a具有良好的相关性,能够反映上层水体初级生产的变化。单糖组分的研究可以判定其生源母质,沉积物中有机质的来源主要是海洋上层生物。糖类是易被降解利用的有机质,通过糖类物质中六碳糖的比重及其垂直分布的变化可以判断出不同站位沉积速率的相对快慢。
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| 关 键 词： | 沉积物 糖类 沉积速率 普里兹湾 南极 |
| 文章编号： | 0253-4193(2008)01-0059-08 |
| 收稿时间： | 2007/1/23 0:00:00 |
| 修稿时间： | 2007年1月23日 |
Distributions and implications of neutral monosaccharides in sediments of Prydz Bay, Antarctic |
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| YU Pei-song,HU Chuan-yu,ZHU Xiao-ying,PAN Jian-ming and ZHANG Hai-sheng.Distributions and implications of neutral monosaccharides in sediments of Prydz Bay, Antarctic[J].Acta Oceanologica Sinica (in Chinese),2008,30(1):59-66. |
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| Authors: | YU Pei-song HU Chuan-yu ZHU Xiao-ying PAN Jian-ming and ZHANG Hai-sheng |
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| Affiliation: | 1.Lab of Marine Ecosystem and Biogeochemistry, State Oceanic Adiministration, Hangzhou 310012, China2.Lab of Marine Ecosystem and Biogeochemistry, State Oceanic Adiministration, Hangzhou 310012, China;Lab of Polar Science, State Oceanic Administration, Shanghai 200136, China |
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| Abstract: | Organic carbon and neutral monosaccharides were performed on sediments from Prydz Bay (Antarctic) during the CHINARE-18/21 cruise.The results show that the distributions of organic carbon and neutral monosaccharides in surface sediments were controlled by primary production in upper water, submarine topography and water stability.The average cotent of neutral monosaccharides in surface sediment is 3.03 mg/g, the hig hest value is 5.60 mg/g and occurred in adjacent continental shelf.The relation between concentration of organic carbon and Chl a in surface water is close.The neutral monosaccharides compositions can reflect the source of biogenic matter.Plankton in upper ocean are the main source of organic carbon in surface sediment.The neutral monosaccharides are liable to degrade.We can presume the relative sedimentation rate by the abundance of hexoses and their vertical distributions. |
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| Keywords: | sediments neutral monosaccharides deposition rate Prydz Bay Antarctic |
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