摘要
黄帝陵古柏有害虫６４种，其中地下害虫１３种，占２０．３％；枝梢害虫１９种，占２９．７％；蛀干害虫１０种，占１５．６％；食叶害虫２２种，占３４．４％。天敌昆虫２８种，占３９．３％。天敌昆虫与害虫比例为１：２．２９，但由于历史和自然灾害的原因，生态平衡遭到破坏，应从加强管理措施上促进生态平衡的恢复。
There are 64 species of pest damaging the antique Platycladdus orientalis in Huangdiling Tomb, among them 13 species are underground pests,19 species are twig pests,10 species are stem borers and 22 leaf pests,which account for 20.3%,29.7%,15.6%,and 34.4% of the total respectivey.Meanwhile,there are 28 species of natural enemies, of which 17 specie are predacious insects,11 species are parasitic insects, acciunt for 60.7% and 39.3% respectively.The ratio between natural enemy and pest is 1:2.29 Balance of ecosystem has been destroyed for historic and physical reasons,it is recommended to strengthen the management and control,so that to recover the balance of the ecosystem.
出处
《西北林学院学报》
CSCD
1995年第1期109-112,共4页
Journal of Northwest Forestry University
基金
陕西省森林病虫防治检疫总站资助.
关键词
古侧柏
昆虫种群
结构
黄帝陵
antique Platycladus
insect population
structure
