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1、第34卷第3期西南林業(yè)大學(xué)學(xué)報Vo1．34No．32014年6月JOURNALOFSOUTHWESTFORESTRYUNIVERSITYJun．20l4doi：10．3969／j．issn．2095—1914．2014．03．004龍王山落葉闊葉林群落特征及物種多樣性研究徐建韋新良王敬汪賢挺俞立鵬(1．浙江農(nóng)林大學(xué)浙江省森林生態(tài)系統(tǒng)碳循環(huán)與固碳減排重點實驗室，浙江臨安3113002．安吉縣龍王山自然保護區(qū)管理處，浙江安吉313300)摘要：采用豐富度(、)、多樣性(D、H)和均勻度(I，，、)各2種指數(shù)研究龍王山落葉闊葉
2、林的物種多樣性。結(jié)果表明，龍王山落葉闊葉林植物資源豐富，灌木種數(shù)最多，草本植物最少，共計有維管柬植物54科91屬140種(含變種)；群落層次分明，從上到下，分為喬木層、灌木層和草本層，并有少量層間植物。喬木層和草本層中優(yōu)勢種比較明顯，灌木層中各優(yōu)勢種的差異不明顯；豐富度指數(shù)(R、尺)，多樣性指數(shù)(D、H)，均勻度指數(shù)(、)的變化趨勢均一致，灌木層>喬木層>草本層；t檢驗結(jié)果表明，各個層次之間的物種豐富度和多樣性差異性均顯著，灌木層的均勻度指數(shù)(-，，、JR)與喬木層和草本層的差異性并不顯著，而喬木層與草本層均勻度差異卻相
3、對顯著。關(guān)鍵詞：落葉闊葉林；群落；物種多樣性；差異性；龍王山中圖分類號：$718．54文獻標志碼：A文章編號：2095—1914(2014)03—0019—08SpeciesDiversityandtheCommunityCharacteristicsofDeciduousBroad—LeavedForestinLongwangMountainXUJian，WEIXin—liang，WANGJing，WANGXian—ting，YULipeng(1．ZhejiangProvineialKeyLaboratoryO±Car
4、bonCyclinginForestEcosystemsandCarbonSequestration，ZhejiangA&FUniversity，LinanZhejiang311300，China；2．ManagementDepartmentofLongwangMountainNatureReserve，AnjiZhejiang313300，China)Abstract：SpeciesdiversityofplantcommunitiesinLongwangMountainwasstudiedbyusingseperat
5、ely2in—dexofrichnessindex(R1，R2)，diversityindices(D，H)andevennessindex(Jl，J2)．Theresultsshowedthatthedeciduousbroad—leavedforestinthisareahadrichplantspecies．Amongthem，thenumberofshrubspecieswerethemostandtheherbweretheleast．Ittotaled54families，91generaand140spec
6、ies(includingvariations)ofvascularplantspecies．Theverticalstructureofcommunitywasrelativelybeautifullylayeredwhichcouldbedi·videdintotreelayer，shrublayer，herblayer，andadefinitenumberofinterstratumplantsbesides．Thedominantspeciesintreeandherblayerwerequiteobvious，
7、butthedominantspeciesintheshrublayerofthedifferenceswastheopposite．Thechangetrendofrichnessindex(RlandR2)、diversityindex(DandH)andevennessindex(JlandJ2)werethesame(shrublayer>treelayer>herblayer)．T-testresultsshowedthatthedifferencesofthespe—ciesrichnessanddivers
8、itybetweenalllayersweresignificantly．Theevennessindexbetweentheshrublayerandtheotherlayershasnosignificantdifference，whiletheevennessindexofthetreeandshrublaye
