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提供了南海大陆坡上 1 796 2孔深海沉积物的孢粉记录。该孔长 8m ,底部1 4C年龄为 3 0 0 0 0aBP ,跨越了深海氧同位素 3期、末次冰期、冰消期和全新世几个地质历史阶段。孢粉记录显示末次冰期低海面时南海南部出露的陆架上覆盖了低地雨林。同时 ,在邻近的岛屿上山地雨林扩张 ,表明气候比现在凉 ,但是没有变干的迹象。冰消期植被和气候都经历了快速变暖和变凉的波动。全新世时 ,红树林和低地雨林的扩张以及孢粉沉积率的明显降低均表明气候变暖 ,海面上升 ,大陆架被淹没
Pollen records of 1 796 2-hole deep-sea sediments on the South China Sea continental slope were provided. The hole is 8m long and the bottom of 1 4C is 300oa BP, spanning three stages of deep-sea oxygen isotopes, the last ice age, the ice age and the Holocene geological history. Pollen records show that lowland rainforests were covered on the shelf exposed in the southern part of the South China Sea during the last glacial low sea level. Meanwhile, the expansion of mountain rainforests on neighboring islands shows the climate is cooler than it is now, but there is no sign of drying out. Ice extinction Vegetation and climate have experienced rapid warming and cooling fluctuations. During the Holocene, the expansion of mangroves and lowland rainforests and the significant decrease in the deposition rate of sporopollen indicate that the climate is warming, the sea surface rises and the continental shelf is submerged