云南騰沖上新世五種植物化石角質(zhì)層研究.pdf

1、蘭州大學碩士研究生學位論文云南騰沖上新世五種植物化石角質(zhì)層研究研究生姓名：云飛指導老師：孫柏年教授蘭州大學資源環(huán)境學院2007年5月本工作受國家自然科學基金(編號：40372012；40502005)、國家重點基礎研究發(fā)展規(guī)劃項目(編號：2006CB701400)和教育部科學技術(shù)研究重點項目(編號：104177)資助。AbstractThemicros訂ucturesoffivefossilangiospermleavesfromthe

2、PlioceneMangbangformationofTengchonginYunnanProvincewerestudiedinthepresentpaperThefivefossilleavesa∞Excentrodendronhsienmu(ChunetHow)HTChanget＆HMiauMachilusthunbergiiSiebetZuceCyclobalanopsisehevalieri(Hickel：ACamus)，Ma

3、ngiferaindicaLandAquilariaagallochaRoxbMuchworkhadbeendoneabouttheepidermalcharactersofthesefossilLavesandtheirmicrostructttresgreatlyincreasethecorrectdefiningoffossilangiospermsandprovidestrongevidencetoclassificationo

4、ffossilangiospermsAstaeeleavesactaSimportantinterfacesofinteractionof#antsandtheirouterenvironmentfossilplantleaveshave鋤importantruleinreconstructingpalaeoalraosphericCOzconcentxationandinunderstandingtheinterrelationoft

5、heatmosphereandthebiosphereAcomparisonbetweonstomatalparameterofthefossilExcenWodendronhsienmuandthatofitsnearestrelativespeciesExcentrodendrontonkinesewasmadeandtheStomatalRatioMethodWaSappliedinneconstruetingthepalaeoa

6、tmosphericc02concentrationatthetimeofthePlioceneinTengchongYunuan(4224ppmv)，whichshowsthatthefossilspeciesExcentrodendronhsienmuc觚beusedasabioindicatorofthepalaeoatmospheficC02Thepresentworkisofgreatimportanceforustecogn

7、izetheinfluenceoftheglobalatmosphericC02concentrationOnstomatalfrequencyforreconstructingancientatmosphericC02concentrationbyusingfossilleavesandforunderstandinginterrelationshipbetweenclimateandbiosphereKeywords：Pliocen