楚科奇海表层沉积物的生源组分及其对碳埋藏的指示意义

李宏亮; 陈建芳; 金海燕; 金明明; 于晓果; 张海生

楚科奇海表层沉积物的生源组分及其对碳埋藏的指示意义

1.
国家海洋局, 第二海洋研究所, 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
2.
国家海洋局, 第二海洋研究所, 国家海洋局海底科学重点实验室, 浙江, 杭州, 310012

基金项目: 国家自然科学基金资助项目(40476003;40403013);中国第二次北极科学考察资助项目

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出版历程
- 收稿日期: 2006-11-21
- 修回日期: 2007-08-27

Biogenic constituents of surface sediments in the Chukchi Sea:implications for organic carbon burying efficiency

1.
Laboratory of Marine Ecosystem and Biogeochemistry of SOA, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
2.
Laboratory of Submarine Geosciences of State Oceanic Administration, Second Institute of Oceanography, State Oceanic Administration, Hangzhu 310012, China

摘要

摘要: 工业革命以来大气中CO₂浓度由280 ppm剧增至375 ppm,是导致全球气候变暖的主要原因^[1]。海洋作为大气CO₂的“汇”之一,每年可吸收人类释放CO₂气体总量的30%,对全球碳循环的收支平衡有重要作用^[2]。两极地区是CO₂的主要汇区,也是全球变化的重要反馈窗口。因此,了解碳在北冰洋的生物地球化学循环过程是十分必要的^[3-4]。海洋中的生源沉积物主要来自于海洋上层浮游生物碎屑的沉降,主要由蛋白石(以生物硅代替,BSi)、碳酸钙(CaCO₃)和有机质(通常用有机碳替代,TOC)组成^[5]。
- 生源物质 /
- 有机碳稳定同位素 /
- C/N比值 /
- 有机碳埋藏 /
- 表层沉积物 /
- 楚科奇海
- biogenic material /
- stable organic carbonisotope /
- C/N ratio /
- organic carbon /
- surface sediment /
- the Chukchi Sea

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