【摘要】 本文采用反复调查和查迹调查相结合的方法,编制1987～1990年两代光肩星天牛(Anoplophova glabripennis Motsch)在北京杨、大官杨上发生为害的自然种群平均生命表.揭示了该虫自然种群数最消长的动态规律,找出了影响其种群数最变动的关键因子为预测预报和综合治理提供了科学依据.更多还原

【Abstract】 The native species average life table of Anoplophora glabripennis Motsch which occured on Populus ’pekinensis’ and P dekuanensis Hsu.for two generations from 1987 to 1990 was compiled with the methods of repeating investigation and tracing investigation.更多还原