珠江口及近海表层沉积有机质的特征和来源

doi:10.11978/j.issn.1009-5470.2010.01.098

热带海洋学报 ›› 2010, Vol. 29 ›› Issue (1): 98-103.doi: 10.11978/j.issn.1009-5470.2010.01.098cstr: 32234.14.j.issn.1009-5470.2010.01.098

珠江口及近海表层沉积有机质的特征和来源

张凌1,2, 陈繁荣2, 殷克东1, 吕莹3, 杨永强2, 张德荣1

1.中国科学院南海海洋研究所热带海洋环境动力学重点实验室, 广东广州 510301; 2. 中国科学院广州地球化学研究所, 广东广州 510640; 3. 北京师范大学环境学院, 北京 100875

收稿日期:2008-09-24 修回日期:2009-01-07 出版日期:2010-01-15 发布日期:2001-01-08
基金资助:
中国科学院知识创新工程重要方向性项目(珠江河口及近海生态环境演化规律与调控机制研究, KCX2-SW-212)

The characteristics and sources of surface sediments in the Pearl River Estuary and its adjacent shelves

ZHANG Ling1,2, CHEN Fan-rong2, YIN Ke-dong1, LÜ Ying3, YANG Yong-qiang2, ZHANG De-rong1

1. Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China; 2. Guangzhou Institute of Geochemistry, CAS, Guangzhou 510640, China; 3. School of Environment, Beijing Normal Univer-sity, Beijing 100875, China

Received:2008-09-24 Revised:2009-01-07 Online:2010-01-15 Published:2001-01-08
About author:张凌(1974—), 女, 新疆伊宁市人, 博士, 从事海洋地球化学研究。

摘要/Abstract

摘要：

测定了珠江口及近海表层沉积物中总有机碳(TOC), 总氮(TN)及稳定碳同位素组成和几类主要有机化合物(水解氨基酸THAA、糖类TCHO、脂类lipid、酸不溶有机物AIOC), 并分析了沉积有机质及化合物的特征和来源。结果表明珠江口表层沉积有机质主要为陆源和水生混合来源, 而近海有机质主要为当地水生来源。大量的陆源高等植物(含有较多的木质素、纤维素等)输入珠江口, 使得珠江口个别站位沉积物中糖类物质含量大幅高于近海样品; 而珠江口与近海沉积物中水生来源有机质的含量相当。氨基酸和糖类占TOC的份额在浮游生物和悬浮颗粒物中分别为56%和48%, 在表层沉积物中为19%, 说明珠江口和近海的有机质从水柱到达沉积物-水界面的过程中经历了较充分的降解。珠江口样品中活性组分氨基酸和糖类占TOC的份额低于近海, 可能说明珠江口沉积有机质的降解程度高于近海。

关键词: 有机质, 来源, 碳同位素, 珠江口, 近海

Abstract:

The authors study the characteristics and sources of organic carbon, nitrogen and the hydrolysable amino acids (THAA), total carbohydrates (TCHO), total lipid and acid-insoluble organic compounds (AIOC) in the surface sediments of the Pearl River Estuary (PRE) and its adjacent shelves. The results show that the organic matter in the PRE was mainly derived from mixed sources of terrestrial and aquatic origins, whereas the organic matter in the adjacent shelves was predominantly algal-derived. Terrestrial higher plants were rich in more lignin and cellulose, which were exported to the PRE. As a result, the content of TCHO in the sediment of the estuary was higher than that in the adjacent shelves, while the content of aquatic organic matter in the estuary was close to that in the adjacent shelves. The proportions of THAA and TCHO were 56%, 48% and 19% in plankton, suspended particulate and surface sediment, respectively; suggesting that the organic matter had undergone degradation during the sedimentation to the water-sediment interface.

Key words: organic matter, source, carbon isotope, the Pearl River Estuary, adjacent shelf

张凌,陈繁荣,殷克东,吕莹,杨永强,张德荣. 珠江口及近海表层沉积有机质的特征和来源[J]. 热带海洋学报, 2010, 29(1): 98-103.

ZHANG Ling,CHEN Fan-rong,YIN Ke-dong,LÜ Ying,YANG Yong-qiang,ZHANG De-rong. The characteristics and sources of surface sediments in the Pearl River Estuary and its adjacent shelves[J]. Journal of Tropical Oceanography, 2010, 29(1): 98-103.

参考文献

[1] HU JIANFANG, PENG PING’AN, JIA GUODONG et al. Distribution and sources of organic carbon, nitrogen and their isotopes in sediments of the subtropical Pearl River estuary and adjacent shelf, Southern China[J]. Marine chemistry, 2006, 98: 274−285.
[2] CALLAHAN J, DAI M, CHEN R et al. Distribution of dissolved organic matter in the Pearl River Estuary, China[J]. Marine Chemistry, 2004, 89: 211−224.
[3] JIA GUODONG, PENG PING’AN. Temporal and spatial variations in signatures of sedimented organic matter in Lingding Bay (Pearl estuary), southern China[J]. Marine Chemistry, 2003, 82: 47−54.
[4] GRAHAM M C, EAVES M A, FARMER J G et al. A study of carbon and nitrogen stable isotope and elemental ratios as potential indicators of source and fate of organic matter in sediments of the Forth Estuary, Scotland[J]. Estuarine, Coastal and Shelf Science, 2001, 52: 375−380.
[5] O'LEARY M H. Carbon isotopes in photosynthesis. Bioscience, 1988, 38: 328−336.
[6] SCHUBERT C J, CALVERT S E. Nitrogen and carbon isotopic composition of marine and terrestrial organic matter in Arctic Ocean sediments: implications for nutrient utilization and organic matter composition[J]. Deep-Sea Research, 2001, 48: 789−810.
[7] ANDREWS J E, GREENWAY A M, DENNIS P F. Combined carbon isotope and C/N ratios as indicators of source and fate of organic matter in poorly flushed, tropical estuary: Hunts Bay, Kingston Harbour, Jamaica[J]. Estuarine, Coastal and Shelf Science, 1998, 46: 743−756.
[8] RAYMOND P A, BAUER J E. Use of 14C and 13C natural abundances for evaluating riverine, estuarine, and coastal DOC and POC sources and cycling:a review and synthesis[J]. Organic Geochemistry, 2001, 32: 469−485.
[9] YAMAMURO M. Chemical traces of sediment organic matter origins in two coastal lagoons[J]. Journal of Marine Systems, 2000, 26: 127−134.
[10] THORNTON S F, MCMANUS J. Application of organic carbon and nitrogen stable isotope and C/N ratios as sources indicator of organic matter provenance in estuarine system evidence from the Tay Estuary, Scotland[J]. Estuarine, Coastal and Shelf Science, 1994, 38: 219−233.
[11] MATSON E A, BRINSON M M. Stable carbon isotopes and the C:N ratio in the estuaries of the Pamlico and Neuse Rivers, NC[J]. Limnology and Oceanography, 1990, 35: 1290−1300.
[12] ELIZABETH A C, JAMES E C. Molecular and isotopic tracers used to examines sources of organic matter and its incorporation into the food webs of San Francisio Bay[J]. Limnology and Oceanography, 1995, 40: 67−81.
[13] MACKO, S A, ENGEL M H, HARTLEY G. Isotopic compositions of individual carbohydrates as indicators of early diagenesis of organic matter in peat[J]. Chemical Geology, 1991, 93: 147−161.
[14] GRUTTERS M, VAN RAAPHORST W, HELDER W. Total hydrolysable amino acid mineralization in sediments across the Atlantic continental slope (Goban Spur)[J]. Deep-Sea Research Part I, 2001, 48: 811−832.
[15] SIGLEO A C. Biochemical components in suspended particles and colloids: carbohydrates in the Potomac and Patuxent Estuaries[J]. Organic Geochemistry, 1996, 24: 83−93.
[16] OGIER S, DISNAR J R, ALBÉRIC P. Neutral carbohydrate geochemistry of particulate material (trap and core sediments) in a eutrophic lake (Aydat, France)[J]. Organic Geochemistry, 2001, 32: 151−162.
[17] WANG XUCHEN, DRUFFEL E R M, GRIFFIN S. Kashgarian M. Radiocarbon studies of organic compound classes in plankton and sediment of the northeastern Pacific Ocean[J]. Geochimica et Cosmochimica Acta, 1998, 62: 1365−1378.
[18] CHEN FANRONG, ZHANG LING, YANG YONGQIANG et al. Chemical and isotopic alteration of organic matter during early diagenesis: Evidence from the coastal area off-shore the Pearl River estuary, south China [J]. Journal of Marine Systems, 2008, 74: 372−380.
[19] MEYERS P A, ISHIWATARI R. Lacustrine organic geochemistry−An overview of indicators of organic matter sources and diagenesis in lake sediments[J]. Organic Geochemistry, 1993, 20: 867−900.

珠江口及近海表层沉积有机质的特征和来源

The characteristics and sources of surface sediments in the Pearl River Estuary and its adjacent shelves

PDF (PC)

赞

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	孙泽铭, 韩树宗, 王明杰, 苏翰祥. 不同路径台风对中国近海海温的影响特征统计分析[J]. 热带海洋学报, 2024, 43(5): 17-31.
[2]	高洁, 余克服, 许慎栋, 黄学勇, 陈飚, 王永刚. 西沙群岛永乐环礁礁外坡沉积物中有机碳的含量与来源分析[J]. 热带海洋学报, 2024, 43(3): 131-145.
[3]	张哲然, 胡俊洋, 周凯, 张鹏晖, 邢久星, 陈胜利. 不同类型台风气象场对深圳近海海域风暴潮模拟的比较研究—以台风“山竹”为例^*[J]. 热带海洋学报, 2023, 42(6): 1-14.
[4]	王辰燕, 史敬文, 颜安南, 康亚茹, 王煜轩, 覃素丽, 韩民伟, 张瑞杰, 余克服. 有机磷酸酯在南海长棘海星中的生物富集特征及来源解析[J]. 热带海洋学报, 2023, 42(5): 30-37.
[5]	宋星宇, 林雅君, 张良奎, 向晨晖, 黄亚东, 郑传阳. 粤港澳大湾区近海中小型浮游动物分布特征及影响因素^*[J]. 热带海洋学报, 2023, 42(3): 136-148.
[6]	赵中贤, 孙珍, 毛云华, 张伙带. 南海北部陆缘不均匀伸展及脉动式构造升降史^*[J]. 热带海洋学报, 2023, 42(3): 96-115.
[7]	董汉英, 苏娟, 周声圳, 梁少霞, 陈观宇, 王凡. 南海西沙海域冬季海水重金属质量浓度水平及来源分析^*[J]. 热带海洋学报, 2023, 42(2): 169-177.
[8]	高娜, 赵明利, 马毅, 徐婉明, 詹海刚, 蔡树群. 台风对珠江口风暴增水的影响分析[J]. 热带海洋学报, 2023, 42(1): 32-42.
[9]	唐灵, 聂宇华, 王平, 汤超莲. 1974—2020年珠江口外海海洋热浪变化趋势分析[J]. 热带海洋学报, 2022, 41(6): 143-150.
[10]	商博文, 吴云超, 江志坚, 刘松林, 黄小平. 珠江口沉积物有机质特征、来源及其对碳存储的意义[J]. 热带海洋学报, 2022, 41(3): 16-28.
[11]	尹天齐, 王庆, 杨宇峰, 岑竞仪. 基于形态学和DNA分子鉴定的珠江口浮游动物群落结构比较研究[J]. 热带海洋学报, 2022, 41(3): 172-185.
[12]	陈琼, 唐世林, 吴颉. 基于GF-4卫星反演的珠江口水体表层悬浮泥沙时空变化特征*[J]. 热带海洋学报, 2022, 41(2): 65-76.
[13]	杨远征, 徐超, 唐世林, 李莎. 南海及邻近海区科学数据中心资源建设初探[J]. 热带海洋学报, 2021, 40(6): 14-22.
[14]	帅义萍, 陈寅超, 刘子嘉, 葛在名, 马梦真, 张苑芳, 李芊. 2016年春季季风转换期的珠江冲淡水分布与生态特征分析^*[J]. 热带海洋学报, 2021, 40(5): 63-71.
[15]	陆春菊, 陆玫霖, 刘昕明, 刘永宏, 高程海, 徐新亚. 广西涠洲岛柳珊瑚共附生真菌多样性及其抑菌活性^*[J]. 热带海洋学报, 2021, 40(5): 45-52.