A preliminary discussion on the OC source in surface sediments from the Chukchi Sea is made together with the observed data during 2 arctic expeditions,and it is concluded that the burial of sedimentary OC may depend mainly on the biological pump.

• 结合2次北极考察的实测结果,对楚科奇海海底表层沉积物中的有机碳来源进行了初步讨论,认为沉积有机碳埋葬可能主要取决于生物泵。