简介：Theeffectiveprecipitationandtheframeofatmosphericcirculationinthepastthreekeyperiods,i.e.30kaBP,18kaBPand6kaBP,havebeenanalyzedonthebasisofthepalaeolakestatusrecordproducedbytheChineseLakeStatusDataBase.Theresultsshowthatthewest-centralpartofChinawascharacterizedbyhighlake-levelsat30kaBP,resultingfromstrengthenedsouthwestmonsoons;whereasthehighlakestand,occurringinthewest-centralpartofChinaat18kaBP,wascausedbythesouthwardshiftandthestrengtheningofwesterliesalthoughthehigh-standdistributionwasreduced.Meanwhile,theeast-centralpartofChinawasunderthecontrolofstrongwintermonsoonsat18kaBP.Thehighlake-levels,whichoccurredintheeast-centralpartofChinaat6kaBP,arerelatedtotheenhancedEast-Asiansummermonsoons;whiletheloweringofthelake-levelinthewest-centralpartofChinaat6kaBPwasduetothenorthwardshiftandcorrespondingshrinkofthewesterlies.Acomparisonb