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  

A Preliminary Analysis on Relationship Among Cossus chinensis Damage level,Stand factors and Site conditions

作　　者：张吉乾 张文凤 梁挺 李新贵 ZHANG Ji-qian;ZHANG Wen-feng;LIANG Ting;LI Xin-gui(Guizhou Province State-owed Farm Station,Xiuwen,Guizhou 550201;Guizhou Province Forestry School,Xiuwen,Guizhou 550201;Guizhou Province State-owed Farm Station,LongLi,Guizhou 551200)

机构地区：[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

出　　处：《贵州林业科技》2023年第1期22-25,6,共5页Guizhou Forestry Science and Technology

基　　金：贵州省林业科研课题“贵州省麻栎木蠹蛾防控技术研究”(黔林科合[2018]03号)。

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4 cm,受害林木高度最低为地面根茎处(0 m),最高可达8.8 m,主要集中在1~5 m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。An investigation was performed on the host plants of Cossus chinensis in Guizhou from 2018 to 2021.The relationship was also clarified with the damage level,local stand factors,and site conditions.The results showed that Cossus chinensis mainly damaged Quercus acutissima and Q.variabilis in the study area.Among them,the minimum diameter at breast height(DBH)of the injured trees was 4 cm,and the lowest height of the injured trees was concentrated in the range of 1~5 m from the ground rhizome(0 m)to 8.8 m.Furthermore,the damage level was ranked in the descending order of the Q.acutissima pure forest>Q.acutissima-Cryptomeria japonica var.sinensis mixed forest>Q.acutissima-Q.variabilis mixed forest>other broad-leaved mixed forest.Specifically,the damage level in the mixed forest was lower than that in the pure one.The damage level was negatively correlated with the altitude,slope,slope position,slope direction,and canopy density,whereas,there was no correlation to the site conditions.

关 键 词：黄胸木蠹蛾 危害 林分因子 立地条件 相互关系 

分 类 号：S763[农业科学—森林保护学]