根据南海南北陆坡两个站位的柱状样中底栖有孔虫分布，结合有机碳、稳定同位素分析，获得南海近4万年来高分辨率的表层古生产力记录，进而探讨晚第四纪东亚古季风的变迁。研究表明，由于冬季风在本次冰期、夏季风在全新世早期约10000aB．P．急剧增强，分别在南海南北陆坡产生海岸上升流，加上陆源营养物输入增多，使得表层古生产力明显增高、有机碳通量增大至3．5gC／（m2·103a）以上，从而底栖有孔虫群中Buliminaaculeata和Uvigerinaperegrina占绝对优势。 According to the distribution of benthic foraminifera in the columnar samples from two stations in the South China Sea and the South China Strait, with the analysis of organic carbon and stable isotope, the high-resolution paleoproductivity records of the South China Sea for nearly 40,000 years were obtained. Monsoon changes. Studies show that due to the winter monsoon in this glacial period, the summer monsoon was about 10000aB in the early Holocene. P. The sharp increase in coastal upwelling in the South China Sea and the South China Sea respectively, coupled with the increase of terrigenous nutrient input, significantly increased the paleoproductivity of the surface layer and increased the organic carbon flux above 3.5gC / (m2 · 103a) Bulimina aculeata and Uvigerina peregrina occupy an absolute advantage in the foraminifera.