海洋沉降颗粒有机质在海洋环境中扮演着重要的角色,它不仅为海洋生物提供了食物、参与了海洋化学循环,而且为海底沉积物提供了沉积有机质,因此,海洋沉降颗粒有机质的来源、传送和转移过程一直受到人们的关注.海洋沉降颗粒有机质的传送过程可以通过测定沉降颗粒物质的有机碳含量去认识,对它们的来源以及生物和生物化学作用过程则可通过研究其脂类化合物的组成特征而详细了解.笔者首次对我国南、东海沉降颗粒物质进行了有 Marine sedimentation particulate organic matter plays an important role in the marine environment. It not only provides food for marine life, participates in ocean chemistry cycles, but also provides sedimentary organic matter for marine sediments. Therefore, the origin, The transfer process of ocean sediment particles has been paid attention to.Monitoring process of oceanic sediment particle organic matter can be realized by measuring the organic carbon content of sedimentary particulate matter and their origin and biological and biochemical processes can be studied by studying the compositional characteristics of their lipid compounds For more details, I first carried out the sedimentation of particulate matter in the South China Sea and the East China Sea