The organic carbon content is in close relation to productivity in the ocean, which can be used to reconstruct the long periodic changes in ocean paleoproductivity.
有机碳含量与海洋生产力关系极为密切，它可用来重建海洋古生产力的长期变化。
The organic carbon accumulation rates indicate that the paleoproductivity increased in the northern SCS and decreased in the southern SCS during the past 900 years.
有机碳分析南海北部近900年来古生产力呈上升趋势，南部则为下降趋势。
The organic carbon accumulation rates indicate that the paleoproductivity increased in the northern SCS and decreased in the southern SCS during the past 900 years.
有机碳分析南海北部近900年来古生产力呈上升趋势，南部则为下降趋势。
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