高山林间活立木中松褐天牛种群分布及动态特征

打开文本图片集

关键词：马尾松（Pinus massoniana Lamb.）；活立木；松褐天牛（Monochamus altermatus Hope）；种群分布；高山林间；动态特征

中图分类号：S763.38 文献标识码：A

文章编号：0439-8114（2025）06-0092-05

DOI：10.14088/j.cnki.issn0439-8114.2025.06.015

Thepopulationdistributionanddynamiccharacteristicsof Monochamus alternatus Hope among the living trees in alpine forest area

HONG Cheng-hao1，SUNLiang1，HAO Cai-hao²，LU Zong-rong，ZHA Yu-ping1 .HubeiAcademyofForestry，Wuhan43005，China;2.CollgeofPlantScienceandTechnology，HuazhongAgriculturalUnivesi Wuhan43007O，China；3.EnshiForestSeedandForestDiseaseandPestControlStation，Enshi450O，Hubei，China）

Abstract：Bydisectinglivingtresinmountainforests，thespatialdistributionharacteristicsofthepopulationofMonohamusalter natus Hope withinthewoodsegmentsof Pinus massonianaLamb.wereanalyzed.Meanwhile，theemergenceof Monochamusalternatus Hopewas monitoredatdferentaltitudesitesinmountainforests toexploreitspopulationdynamicpates.Teresultsshowdthatin thethreeplotsatdiffrentaltitudesof450m（D1），680m（D2）and1Om（D3），thedensityof intrusionholesandemergence holesofMonocamusalternatusHopewasrelativelyhighinthemiddle-upperpartoftetree.Thecorelationequationsestablished forthenumberofintrusionholes，mergenceholesandtheheightofthetreerunksinthetreealtitudeplotscouldfectivelytiate thepopulationdistributioofMonochamusalteratus Hopewithinthetrees.InthealtitudeplotsofDandD3，thenumberofitrusion holeswassignicantlyorrlaedwithtumbeofemergehles，withorrlaioncoffientsofO.12nd.74espctively Atanaltitudeangeof450～OOm，othteinitialemergeneperiodandthefialemergeneperiodofMonochamusalteratusHope were gradually delayed as the altitude increased.The initial emergence period was postponed by 15～30d ，and the final emergence period was postponedby6～31d.Itsemergenceperiodastedfor86～88d.Itsactiveperiodwasalsodelayedasthealtitudeincreased. Theinitialapperaneofisctivitysopody55，uttaparaceofisctiitysosisttlyintt day period of October.

KeyWords：Pinus masoniana Lamb.;living wood;Monochamus alternatus Hope；populationdistribution；alpineforestarea;dynamic characteristics

松褐天牛（MonochamusalternatusHope）属鞘翅目（Coleoptera）天牛科（Cerambycidae），主要为害马尾松（PinusmassonianaLamb.）黑松（Pinusthunber-giiParl.）雪松（Cedrusdeodara（Roxburgh）G.Don）等多种松属和其他种类的木本植物[12]，是松材线虫（Bursaphelenchusxylophilus）的媒介昆虫，松褐天牛在补充营养、产卵和取食过程中，会将松材线虫注入松树体内[3]，从而引发松材线虫病，造成松树枯萎死亡，每年由此造成的损失数以亿元计。（剩余7487字）