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。
2
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.