Abstract:

ediment samples collected at Chukchi Sea and nearby area during CHINARE were analyzed and discussed to search the spatio-temporal and vertical rule of TC、TOC、TP and TN.Contents of TC in sediments range from 0.89% to 2.17%,contents of TN range from(0.24 mg/g) to 1.66mg/g and contents of TP range from 0.15 mg/g to 0.96mg/g.Total carbon of Station C2-1、S11 and M07 is mainly composed of organic carbon,and this result confirms the conclusion that Chukchi Sea area is an efficient carbon accumulation area.The organic carbon of four stations mainly comes from the ocean.There is an obvious positive correlation between TOC and TN at Station P24 and M07,which could indicate the consanguineous relationshi between nitrogen and organic carbon and the existent form of nitrogen is organic nitrogen at Station P24 and M07.