Distribution of lignin and sources of organic matter in surface sediments from the adjacent area of the Changjiang Estuary in China

YANG Li-yang; WU Ying; ZHANG Jing; YU Hao; ZHANG Guo-sen; ZHU Zhuo-yi

Article Contents

Article Navigation > Haiyang Xuebao > 2008 > 30(5): 35-42

YANG Li-yang, WU Ying, ZHANG Jing, YU Hao, ZHANG Guo-sen, ZHU Zhuo-yi. Distribution of lignin and sources of organic matter in surface sediments from the adjacent area of the Changjiang Estuary in China[J]. Haiyang Xuebao, 2008, 30(5): 35-42.

Citation:

PDF( 575 KB)

Distribution of lignin and sources of organic matter in surface sediments from the adjacent area of the Changjiang Estuary in China

State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China

Received Date: 2007-11-19
Rev Recd Date: 2008-08-18

Abstract

Abstract

Elemental,stable carboniso topic and lignin analyses were carried out to study the sources of surface sedimentary or ganic matterin the adjacentarea of the Changjiang Estuary.Ratios of carbonis nitrcyen content vary from 6.2 to 7.7,corresponding with bulk δ¹³C values of -19.9×10^-3~-22.4×10^-3. The content sum of vanillyl,syringyl and cinnamyl phenols produced from the oxidation of 100 mg or ganic carbonis between 0.15×10^-2 and 1.56×10^-2 mg/mgin shelf sediments,comparing with a value of 2.50×10^-2 mg/mg in the mouth of the Changjiang Estuary.Averaged at 0.90,high values of(Ad/Al)v suggest that the terrigenous organic matter in the shelf is highly degraded.S/V(0.78±0.35)and C/V (0.13±0.08)ratios further indicate that these terrigenous organic matter originate from a mixture of woody and nonwoody angiosperm plants.Lignins in the southern shelf have a higher degree of degradation and more contribution from nonwoody angiosperm sources,which deposits along the coastline with a significant off shore decreasing trend.The distribution of lignin in the north is more homogenous due to the different hydrodynamic conditions.End-member calculations suggest that terrigenous organic matter can represent approximately 5% to 57% of total organic matterin various samples with a distinct off shore decreasing trend.Soil-derived terrestrial organic matter may account to majority compositionin most samples.
- lignin,
- terrigenous organic matter,
- sediment,
- continental shelf,
- Changjiang Estuary

FullText(HTML)

References(28)

References

LIU J P,XU K H,LI A C,et al.Flux and fate of Yangtze River sediment delivered to the East China Sea[J].Geomorphology,2007,85(3-4):208-224.

ZHANG J.Heavy metal compositions of suspended sediments in the Changjiang (Yangtze River) estuary:significance of riverine transport to the ocean[J].Continental Shelf Research,1999,19(12):1521-1543.

HEDGES J I,KEIL R G.Sedimentary organic matter preservation:an assessment and speculative synthesis[J].Marine Chemistry,1995,49(2-3):81-115.

GORDON E S,GONI M A.Sources and distribution of terrigenous organic matter delivered by the Atchafalaya River to sediments in the northern Gulf of Mexico[J].Geochimica et Cosmochimica Acta,2003,67(13):2359-2375.

HEDGES J I,KEIL R G,BENNER R.What happens to terrestrial organic matter in the ocean?[J].Organic Geochemistry,1997,27(5/6):195-212.

WU Y,ZHANG J,LIU S M,et al.Sources and distribution of carbon within the Yangtze River system[J].Estuarine,Coastal and Shelf Science,2007,71(1-2):13-25.

GOlql M A.Record of terrestrial organic matter composition in Amazon fan sediments[J].Proceedings of the Ocean Drilling Program,Scientific Results,1997,155:519-530.

GONI M A,RUTTENBERG K C,EGLINTON T I.A reasaessment of the sources and importance of land-derived organic matter in surface sediments from the Gulf of Mexico[J].Geochimica et Cosmochimica Acts,1998,62(18):3055-3075.

刘星,吴莹,张经.术质素在河口与陆架海洋环境中的示踪[J].海洋环境科学,2001,20(3):61-66.

朱纯,潘建明,卢冰,等.长江口及邻近海域现代沉积物中正构烷烃分子组合特征及其对有机碳运移分布的指示[J].海洋学报,2005,27():59-67.

于灏,吴莹,张经.等.长江流域植物和土壤的木质紊特征[J].环境科学学报,2007,27(5):817-823.

郭志刚,杨作升,曲艳慧,等.东海中陆架泥质区及其周边表层沉积物碳的分布与固碳能力的研究[J].海洋与湖沼,1999,30(4):421-426.

蔡德陵.黄河与长江口区有机碳的同位素地球化学[M]//中国主要河口的生物地球化学研究—化学物质的迁移与环境.北京:海洋出版社,1990:160-186.

HUANG Y,STREET-PERROTT F A,METCALFE S E,et al.Climate change as the dominant control on glacial-interglacial variations in C3 and CA plant abundance[J].Science,2001,293:1647-1651.

RAYMOND P A,BAUER J E.Riverine export of aged terrestrial organic matter to the North Atlantic OceanEJ].Nature,2001,409:497-500.

HEDGES J I,PARKER P L.Land-derived organic matter in surface sediments from the Gulf of Mexico[J].Geochimica et Cosmochimica Acta,1976,40(9):1019-1029.

GORDON E S,GONI M A.Controls on the distribution and accumulation of terrigenous organic matter in sediments from the Mississippi and Atchafalaya River margin[J].Marine Chemistry,2004,92(1-4):331-352.

郭志刚,杨作升,张东奇,等.冬,夏季东海北部悬浮体分布及海流对悬浮体输运的阻隔作用[J].海洋学报,2002,24:71-80.

MEYERS P A.Organic geochemical proxies of paleoceanographic,paleolimnologic,and paleoclimatic processes[J].Organic Geochemistry,1997,27(5-6):213-250.

WU Y,ZHANG J,LIU D J,et al.Isotope variability of particular organic matter at the PN section in the East China Sea[J].Biogeochemistry,2003,65:31-49.

REN J L,ZHANG J,I.I J B,et al.Dissolved aluminum in the Yellow Sea and East China Sea-Al as a tracer of Changjiang (Yangtze River) discharge and Kuroshio incuraionEJ].Estuarine,Coastal and Shelf Science,2006,68(1-2):165-174.

郭志刚,杨作升,林田,等.东海泥质区单体正构烷烃的碳同位紊组成及物源分析[J].第四纪研究,2006,26:384-390.

GOlql M A,TEIXEIRA M J,PERKEY D W.Sources and distribution of organic matter in a river-dominated estuary(Winyah Bay,SC,USA)[J].Estuarine,Coastal and Shelf Science,2003,57(5-6):1023-1048.

HEDGES J 1,CLARK W A,QUAY P D,et al.Compositions and fluxes of particular organic material in the Amazon River[J].Limnology and Oceanography,1986,31(4):717-738.

BIANCHI T S,MITRA S,MCKEE B A.Sources of terrestrially-derived organic carbon in lower Mississippi River and Louisiana shelf sediments:implications for differential sedimentation and transport at the coastal margin[J].Marine Chemistry,2002,77(2-3):211-223.

BIANCHI T S,ARGYROU M,CHIPPETT H F.Contribution of vascular-plant carbon to surface sediments across the coastal margin of Cyprus (eastern Mediterranean)[J].Organic Geochemistry,1999,30(5):287-297.

MILTNER A,EME1S K-C.Terrestrial organic matter in surface sediments of the Baltic Sea,Northwest Europe,as determined by CuO oxidation[J].Geochimiea et Cosmochimica Acts,2001,65(8):1285-1299.

GONI M A,YUNKER M B,MACDONALD R W,et al.Distribution and sources of organic biomarkera in arctic sediments from the Mackenzie River and Beaufort Shelf[J].Marine Chemistry,2000,71(1-2):23-51.

Relative Articles

Supplements(0)

Cited By

Proportional views