中国特有植物青毛杨群落物种多样性特征研究.pdf

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1、AgriculturalScience＆Technology，2011，12(11):1744－1748Copyright2011，InformationInstituteofHAAS．Allrightsreserved．ForestryResearchonSpeciesDiversityCharacteristicsofChineseEndemicPlantPopulusshanxiensis11*12SUNDong-hui，GUODong-gang，SHANGGUANTie-liang，WANGZhen-jun1．CollegeofEnvironmentalScienc

2、eandResources，ShanxiUniversity，Taiyuan030006;2．ManagementBureauoftheHeichashanMoun-tainNationalNatureReserve，Lvliang036300Abstract［Objective］ThisstudyaimedatresearchingthespeciesdiversityofPopulusshanxiensiscommunityinHeichashanMountain．［Meth-od］Basedonsamplingmethods，investigationinsamplin

3、gspotswascarriedoutaccordingtotheimportantindicator，theabundanceindex(N)，Simpsonindex(λ)，Shannon－Weinerindex(H')andhomogeneityindex(EandE)wereusedforanalysis．［Results］Speciesdiver-015sityindexofPopulusshanxiensiscommunitywasnotonlydependedonthespeciescompositionsofcommunities，butalsoclosely

4、relatedtotheimportantvalueofspecies．TheorderofabundanceindexanddiversityindexineachlayerofPopulusshanxiensiscommunitywasherblayer＞shrublayer＞treelayer，andtheabundanceindexwaspositivelyrelatedtothediversityindex;whilethevariationtrendofcommunityhomogeneityindexwasdifferentfromthatofabundance

5、indexanddiversityindex，andthehomogeneityhadshownnegativecorrelationwiththedominance．［Conclusion］Inthisstudy，thegrowthstatusandconditionsofPopulusshanxiensiswerefurtherunderstoodandresearched，whichhadlaidthe-oreticalfoundationforprotectingtheendangeredspeciesandprovidedbasicinformationforthe

6、futurestudiesofendangeredspeciesandrelateddisciplines．KeywordsPlantcommunity;Speciesdiversity;Communitystructure;HeichashanMountain;PopulusshanxiensisPlantcommunityspeciesdiversityrefersprimarilytothesearchingonspeciesdiversityofPopulusshanxiensiscommu-composition，structure，functionofplantc

7、ommunityandthenity，thegrowthstatusandconditionsofPopulusshanxiensis［1］diversityandcomplexityofdynamicchange．Researchonwerefurtherunderstoodandstudied，whichhadlaidtheoreti-speciesdiversityofplantcommunitywasanimportantissueincalfoundationforprotectingthee