【摘要】 通过对南海294站深海柱状剖面孢粉、藻类的研究,将294站从下至上划分为7个孢粉组合带: 带为Dacrydium-Pinus-Lithocarpus-Quercus(常绿)-Cyathea-Polypodiaceae; 带为Castanopsis-Lithocarpus-Dacrydium-Quercus(常绿)-Pinus-Polypodiaceae; 带为Quercus(常绿)-Castanopsis-Podocarpus-Cyathea-Polypodiaceae; 带为Polypodiaceae-Cyathea-Pteris-Pinus-Gramineae; 带为Quercus(常绿)-Podocarpus-Lithocarpus-Pinus-Cyathea-Polypodi-aceae; 带为Pinus-Quercus(常绿)-Palmae-Mangrovepollen-Gramineae; 带为Dacrydium-Palmae-Mangrovepollen-Pinus-Cyperaceae-Cyathea。相应恢复了南海东部地区12万年以来5个植被、气候演替阶段,依次为:炎热、湿润的热带季雨林—暖热而稍干的热带北缘半常绿季雨林—炎热、湿润的热带季雨林—暖热而稍干的热带北缘半常绿季雨林—炎热、湿润的热带季雨林。结合氧同位素测年资料,对南海294站柱状剖面地层时代划分进行了讨论。更多还原

【Abstract】 Based on the spore\|pollen and algae research of the sediments at Core 294 in the South China Sea, seven spore\|pollen zones have been distinguished in ascending order:Ⅰ:\%Dacrydium\|Pinus\|Lithocarpus\|Quercus\%(evergreen)\|\%Cyathea\%\|PolypodiaceaeⅡ:\%Castanopsis\|Lithocarpus\|Dacrydium\|Quercus\%(evergreen)\|\%Pinus\%\|PolypodiaceaeⅢ:\%Quercus\%(evergreen)\|\%Castanopsis\|Podocarpus\|Cyathea\%\|PolypodiaceaeⅣ:Polypodiaceae\|\%Cyathea\|Pteris\|Pinus\%\|GramineaeⅤ:\%Quercus\%(evergreen)\|\%Podocarpus\|Lithocarpus\|Pinus\|Cyathea\%\|PolypodiaceaeⅥ:\%Pinus\|Quercus\%(evergreen)\|Palmae\|Mangrove pollen\|GramineaeⅦ:\%Dacrydium\|\%Palmae\|Mangrove pollen\|\%Pinus\%\|Cyperaceae\|\%Cyathea\%The spore\|pollen zones reflected five stages of vegetation succession and climatic fluctuation of the eastern South China Sea in the past 120,000 years. The five stages were as follows:hot and wet tropical monsoon forest-worm and a little dry semi\|evergreen monsoon forest of northern tropic-hot and wet tropical monsoon forest-worm and a little dry semi\|evergreen monsoon forest of northern tropic-hot and wet tropical monsoon forest. Combined with Oxygen Isotope dating, the spore\|pollen and algae data provided evidence for stratigraphic division and for reconstruction of paleoclimate and paleoenvironment in the South China Sea.更多还原