Features of Distribution and Degradation of Organic Matter in the Coastal-Shelf Area of Buor-Haya Gulf (Laptev Sea)

被引：0

作者：

Pogodaeva, T. V. ^{[1
]}

Khodzher, T. V. ^{[1
]}

Zhuchenko, N. A. ^{[1
]}

Grigoriev, M. N. ^{[2
]}

机构：

[1] SB RAS, Limnol Inst, Irkutsk, Russia

[2] Melnikov Permafrost Inst SB RAS, Yakutsk, Russia

来源：

ARCTIC, SUBARCTIC: MOSAIC, CONTRAST, VARIABILITY OF THE CRYOSPHERE | 2015年

关键词：

Arctic; bottom sediments; carbon isotopes; Laptev Sea; nitrogen; organic carbon;

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Organic matters of coastal-shelf zone of the Laptev Sea (Buor-Haya Gulf) were studied. Detailed distribution of organic matter in coastal, surface and bottom sediments were revealed. The structure, genesis, the conditions of formation and degradation of organic matter were determined. A clear dependence of the content of organic matter and its quality on the dimension fractions deposits was revealed. Two groups of organic matter were distinguished: 1 - associated with clays, with the lighter isotopes of carbon; and 2 - associated with sand, with heavier isotopes of carbon. Undegraded woody detritus was a separate group. By a combination of factors: the content of organic carbon, nitrogen, and their ratio, isotopy were defined organic matter with varying degrees of degradation. Higher organic matter degradation was observed in thawed horizons above the roof of underwater permafrost.

引用

页码：296 / 299

页数：4

共 6 条

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Pogodaeva, T. V.
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Zhuchenko, N. A.
Grigoriev, M. N.
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BIOGEOSCIENCES, 2011, 8 (07) : 1865 - 1879
[4] SEASONAL VARIABILITY OF THE ORGANIC-MATTER IN A SEDIMENTARY COASTAL ENVIRONMENT - SOURCES, DEGRADATION AND ACCUMULATION (CONTINENTAL-SHELF OF THE GULF-OF-LIONS, NORTHWESTERN MEDITERRANEAN-SEA)
BUSCAIL, R
POCKLINGTON, R
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CONTINENTAL SHELF RESEARCH, 1995, 15 (07) : 843 - 869
[5] The relationship between chromophoric dissolved organic matter and dissolved organic carbon in the European Atlantic coastal area and in the West Mediterranean Sea (Gulf of Lions)
Ferrari, GM
MARINE CHEMISTRY, 2000, 70 (04) : 339 - 357
[6] Organic matter features, degradation and remineralisation at two coastal sites in the Ligurian Sea (NW Mediterranean) differently influenced by anthropogenic forcing
Misic, Cristina
Castellano, Michela
Harriague, Anabella Covazzi
MARINE ENVIRONMENTAL RESEARCH, 2011, 72 (1-2) : 67 - 74

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