摘要
一、火烧迹地概况大兴安岭火烧区位于北纬52°15＇-53°33＇,东经121°51＇-125°5＇,树种单一,林分主要由落叶松Larix gmelini Rupr.、樟子松pinus sylvestris var.mongolica Litv.和白桦Betula platyphylla Suks.组成。1987年5月,该地区发生特大森林火灾,火灾面积133万ha,过火有林地和疏林地面积114万ha,森林生态环境受到严重破坏。1989年,火烧迹地上暴发次期性蛀干害虫(主要是天牛和小蠹虫),火烧立木和楞堆都严重被害。
After forest fire in the Daxinganling Mountains, the burnt-woods were se- riously attacked by many kinds of borers Meanwhile the populations of the na- tural enemies increased rapidly with the outbreaks of the tree borers. The natural enemies were studied and classified in 1988-1989. 51 species of natural en- emies were found, belonging to Insecta, Arachnoidea, Ares and Hyphomycetes.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1992年第1期80-84,共5页
Scientia Silvae Sinicae
