海洋学研究 >

2014 , Vol. 32 >Issue 3: 65 - 71

DOI: https://doi.org/10.3969/j.issn.1001-909X.2014.03.009

研究论文

赤道太平洋上层水体颗粒态生物硅分布及与营养盐的关系

  • 朱庆梅 ,
  • 庄燕培 ,
  • 李宏亮 ,
  • 徐燕青 ,
  • 刘希真 ,
  • 张静静 ,
  • 王奎 ,
  • 金海燕
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  • 1.国家海洋局 第二海洋研究所,浙江 杭州 310012;
    2.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;
    3.浙江工业大学 化学工程与材料学院 海洋系,浙江 杭州 310014;
    4.浙江省海洋监测预报中心,浙江 杭州 310007
朱庆梅(1987-),女,山东莒南县人,硕士研究生,主要从事海洋生物地球化学方面的研究。E-mail: zhuqingmei1987@163.com

收稿日期: 2013-12-18

  修回日期: 2014-05-23

  网络出版日期: 2022-11-25

基金资助

国际海底区域研究开发“十二五”项目资助(DY125-13-E-01);国家自然科学基金重大研究计划重点支撑项目资助(91128212)

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Distribution of particular biogenic silica and its relationship with nutrients in the upper waters of the Equatorial Pacific

  • ZHU Qing-mei ,
  • ZHUANG Yan-pei ,
  • LI Hong-liang ,
  • XU Yan-qing ,
  • LIU Xi-zhen ,
  • ZHANG Jing-jing ,
  • WANG Kui ,
  • JIN Hai-yan
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  • 1. The Second Institute of Oceanography, SOA, Hangzhou 310012, China;
    2. Laboratory of Marine Ecosystem and Biogeochemistry, SOA, Hangzhou 310012, China;
    3. Department of Oceanography, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, China;
    4. Marine Monitoring＆Forecasting Center of Zhejiang Province, Hangzhou 310007, China

Received date: 2013-12-18

  Revised date: 2014-05-23

  Online published: 2022-11-25

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摘要

依托中国“大洋一号”第20和第21调查航次,分析测定了东、西赤道太平洋4个站位的颗粒态生物硅浓度及其粒级结构。结果显示赤道太平洋采样站各层位颗粒态生物硅(PBSi)总浓度分布范围为5~65 nmol/dm3,东赤道太平洋的调查站位颗粒态生物硅的总浓度平均值达46 nmol/dm3,是西赤道太平洋的近3倍。PBSi的粒径结果显示在东赤道太平洋调查站位0.8~20 μm粒径颗粒是PBSi的主要来源,其平均贡献率高达64%;而在西赤道太平洋2种粒径的生物硅贡献率相当。营养盐分布对PBSi的浓度及粒径分布有显著的影响,并在一定程度上控制了“硅质泵”的组成结构,是控制大洋生物泵运转的重要因素。

关键词： 赤道太平洋; 颗粒态生物硅; 营养盐; 硅质泵

本文引用格式

朱庆梅 , 庄燕培 , 李宏亮 , 徐燕青 , 刘希真 , 张静静 , 王奎 , 金海燕 . 赤道太平洋上层水体颗粒态生物硅分布及与营养盐的关系[J]. 海洋学研究, 2014 , 32(3) : 65 -71 . DOI: 10.3969/j.issn.1001-909X.2014.03.009

Abstract

During the Chinese DY20 and DY21 cruises, size-fractionated particulate biogenic silica (PBSi) and nutrients were analyzed for samples at 4 stations in the eastern and western Equatorial Pacific. It showed that the total PBSi concentrations at 4 stations were at a range of 5~65 nmol/ dm3 and its mean value in the eastern Equatorial Pacific was 46 nmol/dm3, which was about 3 times higher than that in the western Equatorial Pacific. PBSi concentrations with the size of 0.8~20 μm accounted for the major contributor of the total PBSi concentrations in the eastern Equatorial Pacific with an average contribution of 64%, while the contributions of two size classes of PBSi concentrations were equal in the western Equatorial Pacific. The results were that the distribution of nutrients had a prominent impact on the concentration and size composition of biogenic silica. And it might be an important factor in controlling the efficiency of biological pump in the Equatorial Ocean by controlling the composition structure of “silica pump”.

Key words： Equatorial Pacific; particulate biogenic silica; nutrients; silica pump

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