1、獨(dú)創(chuàng)性聲明本人聲明所呈交的學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作及取得的研究成果。據(jù)我所知，除了文中特別加以標(biāo)注和致謝的地方外，論文中不包含其他人已經(jīng)發(fā)表或撰寫過(guò)的研究成果，也不包含為獲得或其他教育機(jī)構(gòu)的學(xué)位或證書而使用過(guò)的材料。與我一同工作的同志對(duì)本研究所做的任何貢獻(xiàn)均已在論文中作了明確的說(shuō)明并表示謝意。，學(xué)位論文作者簽名：吉日亞萍簽字日期：為，嚴(yán)年易月【1日學(xué)位論文版權(quán)使用授權(quán)書本學(xué)位論文作者完全了解江西師范大學(xué)研究生院有關(guān)保留、

2、使用學(xué)位論文的規(guī)定，有權(quán)保留并向國(guó)家有關(guān)部門或機(jī)構(gòu)送交論文的電子版和紙質(zhì)版，允許論文被查閱和借閱。本人授權(quán)江西師范大學(xué)研究生院可以將學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫(kù)進(jìn)行檢索，可以采用影印、縮印或掃描等復(fù)制手段保存、匯編學(xué)位論文。(保密的學(xué)位論文在解密后適用本授權(quán)書)學(xué)位論文作者簽名：詛亞莘簽字日期：為f壚年6月I1日導(dǎo)師簽名：形砂y簽字日期：年，，月日≯t丫。‘f／AbstractTlleregionalsaJlddustaccu

3、mulationsystemofPoyangLakeinNorthJiangxiduringtllelaStglacialisaregionalresponsethatintheglacialclimateconditionthewintermonsoonstrengthen，sealevelgreatlyreduced，causingthefloodplainsoftheⅥmgtzeRiverandtheGanRiverexposed

4、ThatsandhillXiashusoilaccumulationsvstemissimilartothedesert10essaccumulationsysteminNorthernButbecauseofits10wlatitude，thewintermonsoonforthehandlingpowersignificantlylessthaninthenonllandtheprovenancerangeisnarrowSOthe

5、scaleofsanddustaccumulationsvstemisfarlessthanthenorthdesertloesssystemDuetothesourceofsandISlinear，andrestrictedbVlocallandform，localsanddustaccumulationsystemisdividedintoseveralrelativelyindependentsubsystemBasedonthe

6、fieldworkofthesouthwestofPoyangLake，thewestsideofGanRiVerdownstre鋤，wechosetheHoutian—DagulingsectionasthestudyareaThesectionwassetninesedimentarysectionsalongwiththemodemdirectionofwintermons00nItincludesthefloodplainsec

7、tion，sandhillsectionandXiashusoilsectionThispaperonlyfocusesontheyellow—brownXiashusoillocatedinuppersections(sincet11elastglaciation)，onthelowerreticulateredclaytemporarilynotinv01vedThesectionanalysisisusedtotestatotal

8、of65samplesInthispaperweusesedimentologyandgeochemistrymethodtoanalysisofsamplesinthestudyarea，includingtheanalysisofgranularitycharacteristicsandtheconstantelementcharacteristicsThearticledrawthefollowingconclusions：(1)

9、GrainsizefrequencycurvesoftheHoutianDagulingsectiondenotesparticlesizetapering，fineparticlespeakincreasesgraduallyandcoarseparticlepeakgraduallyshrinkingfromnorthtosouthAndintheendofsectionfoundyellowclayFromthepointofsp

10、atialdistribution，sedimentaryfaciesofthissectiontransmitfromsandduneinHoutiansandhills～sandloess一clayloessfromFengchengtoDagulinghillstoloessclayinDagulinghillalongwiththemodemdirectionofwintermonsoonInthatprocess，thegra

11、insizecompositionandparametersshowasystematicchangefromnorthtosouthwithlogarithmicfunctionmodeofthedistancetoHoutianGanRivervalleyWithinthedistanceof20km，theychangeviolentlybutoutofthisdis啪cewillbeasymptoticallystableThu