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1、貴州大學2015屆碩士研究生學位論文conductedontheforestgermplasmresource.Accordingtothestatisticalresults,atotalof149families566generaand1131speciesxylophyta（includingvariant,varietiesandcultivatedspecies）weredistributed.Therewere8families18genera24speciesgymnospermand141families548genera1105specie
2、sangiospermwhosemonocotyledonswere22families89genera144species,Dicotyledonswere119families459genera963species.Theinvestigationindicatedthattheforestgermplasmresourcewereabundant,thesystemevolvedperfectly,andhadthefeatureofancientandrelict.TheEconomicplantsresources,suchasTimberspec
3、ies,wildwoodyornamentalplants,edibleplants,medicinalplants,oilplants,fiberplants,honeyplants,tanningplantsandsoon,theancienttreesandrareandprotectedtreespeciesresourceswereclassifiedandstudiedinthisresearch.Accordingtotheresultsofthissurvey,someadviceonconservationandutilizationoff
4、oresttreesgermplasmresourcesresourceisofferedofJinPingcountry.TheresultsalsoshowedthatPhoebebournei、Liquidambarformosana、Faguslongipetiolata、Phyllostachysedulis4excellentpopulationswhichweremoreabundantinGuiZhoushouldbebetterprotectedandutilizedreasonably.Basingontheanalysis,theJin
5、PingCountyflorahadtropicalcharacteristicinfamilylevel,reflectingitsoriginandformationhadarelativelongancienttropicalorigin.However,inthegeneralevel,thecompositionoftemperatewasmorethanthetropical,thetemperatecharacteristicwasshowed,butmanygeneraofplantsweretheimportanttransitionspe
6、ciesfromtemperatetotropicallocations,demonstratingtheJinPingCountyflorahadcloselyconnectionwiththetropicalflora.Intheleveloftropicalcompositionmajority,presentscertaintropicalnature,showthattheregion'sfloraandtropicalcloserelationship.Thekindoflevelmoretemperatecomponents,andthepro
7、portionoftropicalelementswas1.97:1,theproportionofEastAsiacompositioninthetemperatecompositionwasthelargest,mirroringJinPingflorabelongedtoEastAsiaflora.TheendemicspeciesofChinawere451species,accountingfor41.6%,illustratingtheflorahadveryhighspecificpropertiesanddiscussesthereasono
8、fthisuniquephenomenon.Keyw
