环境对皖西大别山皱鞘双条杉天牛发生的影响  

Influence of environmental factors on the occurrence of Semanotus bifasciatus sinoauster in Dabieshan Mountains of Western Anhui Province

作　　者：梁修山 刘琪 李多详 何进义 武琦 

机构地区：[1]六安市森林病虫害防治检疫站,安徽六安237002 [2]六安市裕安区狮子岗乡林业站,安徽六安237018 [3]六安市裕安区森林病虫害防治检疫站,安徽六安237012 [4]六安市裕安区石板乡林业站,安徽六安237122

出　　处：《中国森林病虫》2003年第6期14-17,共4页Forest Pest and Disease

摘　　要：皖西大别山林区 4月月候气温在 18 6～ 2 0 6℃时 ,皱鞘双条杉天牛Semanotusbifasciatussinoauster (Gressitt)卵孵化率为 74 74 %～ 82 35 %。通过抚育管理的纯林 ,每hm2 在 390 0株以下的 8a～ 16a生林分 ,抽样林分平均种群密度在 0 4 6头以下 ,有虫株率为 0 33%～ 14 5 0 % ,未抚育管理的纯林种群密度每株在 1 1头～ 1 6 1头、有虫株率为 2 1 6 7%～ 2 6 83%。而混交林极少 。The results showed that the hatching rate of Semanotus bifasciatus sinoaustereggs was between 74.74% and 82.35% when the temperature in April was between 18.6 ℃ and 20.6 ℃?In the tending pure forests,the stands with (3900) trees or less at the age of 8-16 per hectare were sampled,the average population density of the pest was below 0.46 per tree and the attacking rate ranged from 0.33% to 14.50%.In the pure stands without tending the population density was from 1.10 to 1.61 per tree and the attacking rate ranged from 21.67% to 26.83%.But there were few in the mixed forests.

关 键 词：皱鞘双条杉天牛 杉木 环境 种群密度 

分 类 号：S763.38[农业科学—森林保护学]