摘要
ThepollenanalysisofDGKS9617coreintheEastChinaSea(coveringaboutthelast6800years)showsfiveobviouspollenassemblagesandsevensub-assemblages.Combinedwiththesedimentandtheresultofdiatomanalysis,theclimatechangesarereconstructedduringtheMiddleandLateHolocene.Correspondingtothepollenassemblages,theclimateshiftsjustasfollows:AssemblageⅠ-WarmandDryStage,AssemblageⅡ-CoolandHumidStage,AssemblageⅢ-HotandDryStage(themeanannualtemperatureis2~3℃higherthanthattoday),AssemblageⅣ-CoolandHumidStage,AssemblageⅤ-WannandDryStage.Thethirdstageisdividedintothreesubstagesi.e.aslightcolderanddryone,aslightwannerandhumidoneandaslightwarmeranddryone.Duringthefifthstage,theclimatebecomessimilartothattodaywiththreewarmsubstagesandtwocoolsubstages.
出版日期
2001年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)