摘要
以东海近岸泥质区和济州岛西南泥质区表层沉积物的木质素含量(Λ8)及其特征参数为主要指针,结合总有机碳(TOC)、总氮(TN)和C/N,分析比较两地区的物质来源,特别是陆源有机物的迁移埋藏。结果表明:近岸泥质区沉积物中陆源有机物占主导,集中体现在该区Λ8与TOC有类似的分布特征,而台湾暖流和东海沿岸流的相互作用是其主要影响因素。济州岛西南泥质区,陆源有机物的贡献相对较小且有较高的氧化降解程度,这与其距离木质素母源较远相吻合。
In this paper, the source of terrigenous organic matter in the surface sediments from inner shelf mud area of East China Sea （ECS） and southwest mud area of Cheju Island, especially its transport and burial, was discussed by using lignin yield （AS） and its characteristic parameters as major indicators, combined with elemental analysis inclu- ding Total Organic Carbon （TOC）, Total Nitrigen （TN）, and Carbon/Nitrigen ratio （C/N）. The results showed that the distribution of A8 was similar to that of TOC in the inner shelf mud area of ECS, which suggested that the terrigenous organic matter was the dominant source of organic matter. The interaction between Taiwan Warm Current and Donghai Coastal Current was a major factor to control the distribution pattern. However, terrigenous organic matter had a little contribution to the organic matter and underwent high degree of oxidative degradation in the southwest mud area of Cheju Island. This is consistent with the fact that the sources of terrigenous organic matters are distant to their lignin origins around Cheju Island.
出处
《海洋环境科学》
CAS
CSCD
北大核心
2014年第4期509-513,530,共6页
Marine Environmental Science
基金
国家自然科学基金项目(41276067)
国家自然科学重大国际(地区)合作研究项目(41020164005)
关键词
木质素
陆源有机物
CuO氧化法
东海
lignin
terrigenous organic matter
CuO oxidation
East China Sea
