Changes in accumulation rate of organic carbon during the last 8,000 years in sediments of Nakaumi Lagoon, Japan

被引：18

作者：

Sampei, Y

Matsumoto, E

Tokuoka, T

Inoue, D

机构：

[1] Shimane Univ, Fac Sci & Engn, Dept Geosci, Matsue, Shimane 690, Japan

[2] Nagoya Univ, Inst Hydrospher Atmospher Sci, Chikusa Ku, Nagoya, Aichi 46401, Japan

[3] CRIEPI, Abiko Res Lab, Abiko, Chiba 27011, Japan

来源：

MARINE CHEMISTRY | 1997年 / 58卷 / 1-2期

关键词：

organic carbon accumulation rate; organic carbon content; lagoon; climate;

D O I：

10.1016/S0304-4203(97)00024-8

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Changes in the organic carbon accumulation rate (C-org A.R.) and their relation to climate changes during the last 8,000 years were investigated in a 20 m sediment core from the Nakaumi Lagoon, southwest Japan. High-resolution C-14 dating was possible from fifteen shell samples. The warm climate interval 8,000-6,500 cal. yr B.P. was accompanied by increase in the C-org A.R. (21-32 g m(-2) yr(-1)) and the cool climate interval 3.000-2,000 cal. yr B.P. by a decrease (11 g m(-2) yr(-1)). The accumulation of both terrestrial and planktonic organic matter increased during the warm interval. The lagoon seems to act as a more effective small sink for atmospheric CO2 following the global warming climate. (C) 1997 Elsevier Science B.V.

引用

页码：39 / 50

页数：12

共 35 条

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