森林草原交錯(cuò)帶節(jié)肢動(dòng)物群落組成與多樣性的研究.pdf

1、河北農(nóng)業(yè)大學(xué)碩士學(xué)位論文森林草原交錯(cuò)帶節(jié)肢動(dòng)物群落組成與多樣性的研究姓名：劉穎華申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：森林保護(hù)指導(dǎo)教師：高寶嘉20060611StudiesonthearthropodcommunitystructureanddiversityintheforeststeppeecotoneName：LiuYinghuaSupervisor：GaoBaojiaSpecialty：ForestprotectionAbstractThea

2、uthorhasresearchedthecompositionanddiversityofarthropodcommunitiesintheforest—steppeecotone，includingcommunitystructure，seasonalvariation，venicNstructure，nutritionstructure，communitydiversitycommunitysimilarities，sub—com

3、munitiesnicheandSOonTheresultisasfollows：1Throu【ghinvestigatingthearthropodcommunitiesinthedifferenthabitats，wediscoveredthatintheforestandforest—stepperegion，thenumberofindividualandspeciesofmixedforestwasapparentlyrich

4、erthanthatofpureforest，andthatinmeadow—steppeecotone，thespeciesofarthropodcommunityinwhichthenaturalenemywaspredominated，wasrichandthenumberofthemwasmorethantheotherdominativeamongthem2Analyzingthenutritionstructure，ther

5、esultindicatedthatthespeciesinforestwasricherthanthatinforest—steppe，inwhichbasespecieswasoutstandingandthenumberofintermediatespecieswasasmanyasthatoftopspecies，andthatnutritionalstructureofarthropodcommunitiesinforestz

6、onewasmorecomplexthanthatofforest—meadowregionInaddition，inMeadowstepperegionthenumberofspeciesweremorethanthatofforestzoneandforest—meadowregion，whosecommunitiesstabilitywashigherthanandforest—meadowregionFromtheverlica

7、lstructureofdifferentstandtypes，thenumberofindividual，diversityevenindexofarthropodcommunitiesinherballayerwaslargestthantheothersandstabilitywasstronger；butleaflitterlayerwassmallerthantheothers3Withthetimechangingthenu

8、mberofindividuals，species，diversityindexandevenindexofarthropodcommunitiesindifferentstandtypesvadedasfollows：AugustJulySeptemberMayandtheruleoftimechangingwasprimarilycausedbyenvironmentalfactorsAnalyzingthetimedynamico

9、fthevarioussubcommunitiesofArthropodcommunitiesinthreedifferenthabitats，theresultshowedthatthenumberofenemyandpestsubcommunityandtheirspecieswasaffectedasthenumberofneutralarthropodsub—communitiesbythreedifferenthabitats