对南海北部B106站柱状剖面进行了高分辨率孢粉与藻类研究,部分样品作了AMS^14C年代测定。根据孢粉成分的变化将南海B106站从下至上划分了3个孢粉组合带,依次为:1带(294-194 cm)以Pinus-Quercus(常绿)-Gramineae-Polypodiaceae-Pterdium-Dicranopteris为主孢粉带;2带(194-94cm)以Pinus-Quercus(常绿)-Polypodiaceae-Pteridium-Dicranopteris为主孢粉带;3带(94-4 cm)以Pinus-Polypodiaceae-Pteridium-Quercus(常绿)-Dicranopteris为主孢粉带。并相应恢复了南海北部11 000 aBP以来3个植被、气候、古环境演替阶段,结合AMS^14C测年资料,对B106站柱状地层时代划分作了讨论,为南海古气候、古环境演变研究提供了科学依据。
Based on the high-resolution sporopollen and algae research of the sediments from core B106 in the northern South China Sea, three sporopollen zones have been distinguished in ascending order: Zone 1(294- 194 cm) : Pinus-Quercus (evergreen) - Gramineae-Polypodiaceae-Pterdium-Dicranopteris. Zone 2 ( 194 - 94 cm) : Pinus-Quercus (evergreen)-Polypodiaceae-Pteridium-Dicranopteris. Zone 3(94-4 cm) : Pinus-Polypodiaceae-Pteridium-Quercus (evergreen)-Dicranopteris. These sporopollen zones reflect three stages of vegetation, climate and paleoenvironment evolution of the northern South China Sea since 11 000 years ago. Combined with AMS ^14C dating, the sporopollen and algae data can be a scientific evidence for stratigraphic division and reconstruction of paleoclimate and paleoenvironment in the South China Sea.