赤道东北太平洋沉积物间隙水中溶解有机碳的分布特征

倪建宇; MAGGIULLIMichael

赤道东北太平洋沉积物间隙水中溶解有机碳的分布特征

倪建宇¹,
MAGGIULLIMichael²

1.
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
2.
柏林工业大学, 环境工程研究所, 德国, 柏林, D-10623

基金项目: 国家自然科学青年基金项目(40206012);大洋矿产资源勘探开发专项基金项目(Dy105-02-01)资助

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出版历程
- 收稿日期: 2006-03-30
- 修回日期: 2006-12-18

Dissolved organic carbon in sediments from the equatorial northeastern Pacific

NI Jian-yu¹,
MAGGIULLI Michael²

1.
Key Laboratoryof Submarine Geosciences of State Oceanic Administration, Hangzhou 310012, China
2.
Institute of Environmental Technology, Technical University of Berlin, Berlin D-10623, Germany

摘要

摘要: 沉积物间隙水中的溶解有机碳(DOC)是沉积物有机质矿化过程中的中间产物^[1],沉积物中的有机质通过微生物水解和(厌氧)发酵等方式溶解成各类具有不同分子量的有机化合物,通常总称为溶解有机碳,并释放到沉积物间隙水中.而溶解有机碳又进一步被细菌等微生物所利用,最终被氧化为溶解无机碳,完成有机质的矿化过程.因此,沉积物间隙水中DOC的浓度是消耗和生成之间平衡的结果^[1].已有的研究表明,沉积物间隙水中DOC的含量显著高于底层水体中DOC的含量,导致其向底层水体的扩散;近期的研究也表明,来自海底沉积物的DOC通量是底层水体中DOC的重要来源,是海洋有机碳储库中的重要组成之一^[2~4].
- 溶解有机碳 /
- 间隙水 /
- 海底扩散通量 /
- 赤道东北太平洋
- DOC /
- porewater /
- diffusive benthic flux /
- equatorial northeastern pacific

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参考文献(14)

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