第51卷第1期2023年3月贵州林业科技GuizhouForestryScienceandTechnologyVol.51,No.1Mar.,2023黄胸木蠹蛾危害程度与林分因子及立地条件关系的初步分析张吉乾1,张文凤1,梁挺2,李新贵3*(1.贵州省国有扎佐林场,贵州修文550201;2.贵州省林业学校,贵州修文550201;3.贵州省国有龙里林场,贵州龙里551200)摘要:2018—2021年,在贵州对黄胸木蠹蛾寄主植物及其与当地林分因子和立地条件的相互关系进行调查中发现:黄胸木蠹蛾在贵州主要为害麻栎、栓皮栎,其中受害林木最小胸径为4cm,受害林木高度最低为地面根茎处(0m),最高可达8.8m,主要集中在1~5m区间;从危害程度上看,麻栎纯林>麻栎柳杉混交林>麻栎栓皮栎混交林>其他阔叶混交林,混交林受害程度低于纯林;危害程度与海拔、坡度、坡位、坡向、郁闭度等因子均为负相关,危害程度与立地条件没有密切关系。关键词:黄胸木蠹蛾;危害;林分因子;立地条件;相互关系中图分类号:S763文献标识码:AAPreliminaryAnalysisonRelationshipAmongCossuschinensisDamagelevel,StandfactorsandSiteconditionsZHANGJi-qian1,ZHANGWen-feng2,LIANGTing2,LIXin-gui3*(1.GuizhouProvinceState-owedFarmStation,Xiuwen,Guizhou550201;2.GuizhouProvinceForestrySchool,Xiuwen,Guizhou550201;3.GuizhouProvinceState-owedFarmStation,LongLi,Guizhou551200)Abstract:AninvestigationwasperformedonthehostplantsofCossuschinensisinGuizhoufrom2018to2021.Therelationshipwasalsoclarifiedwiththedamagelevel,localstandfactors,andsiteconditions.TheresultsshowedthatCossuschinensismainlydamagedQuercusacutissimaandQ.variabilisinthestudyare-a.Amongthem,theminimumdiameteratbreastheight(DBH)oftheinjuredtreeswas4cm,andthelow-estheightoftheinjuredtreeswasconcentratedintherangeof1~5mfromthegroundrhizome(0m)to8.8m.Furthermore,thedamagelevelwasrankedinthedescendingorderoftheQ.acutissimapureforest>Q.acutissima-Cryptomeriajaponicavar.sinensismixedforest>Q.acutissima-Q.variabilismixedforest>otherbroad-leavedmixedforest.Specifically,thedamagelevelinthemixedforestwaslowerthanthatinthepureone.Thedamagelevelwasnegativelycorrelatedwiththealtitude,slope,slopeposition,slopedirection,andcanopydensity,whereas,therewasnocorrelationtothesiteconditions.Keywords:Cossuschinensis;harm;standfactors;si...
