【摘要】 对取自南黄海CJ08-185柱样进行了高密度的孢粉分析,并依据孢粉成分的变化将柱样自下而上划分出3个孢粉组合带,同时,结合精确的AMS14C测年数据,恢复了南黄海陆缘区全新世大西洋期以来植被和气候演化的历史。更多还原

【Abstract】 Through an intensive study on pollen and spores from core CJ08-185,three palynological assemblages have been distinguished.Based on the AMS 14C dating data,three stages of the evolution of paleovegetation and paleoclimate have been reconstructed since the Atlantic period in the coastal areas of South Yellow Sea as follows:(1)The mixed forest of evergreen broad-leaf trees,deciduous broad-leaf trees and conifers,indicating a hot and moist climate(Atlantic period);(2)The mixed forest of conifers and broad leaves-grassland,taking Quercus,Pinus as the main elements in palynological assemblages,reflecting a warm and little dry climate (Sub-Boreal period);(3)The mixed forest of conifers and broad leaves with a few kinds of evergreen broad-leaf trees.It was a warm and slightly dry period (Sub-Atlantic period).更多还原