摘要
通过调查得出林分因子如郁闭度、坡向、坡位对松毛虫白僵病流行均有不同程度的影响，研究分析了气候条件中温湿度的影响和温湿系数与松毛虫白僵病感染率的相关关系，两者模型为Ｙ＝ １２．１８＋ １４．４６Ｘ（Ｙｘｙ＝ ０．７７３１）。
The investigation shows that the stand factors(such as crown density,exposure and so on.)have effects on the epidemic of dendrolimus punctatus muscardine to some extent.The effect of temperature and moisture on the epidemic of the disease was analysed.The corelation between temperature moisture index and the infection rate of the disease was studied.their model is y=12.8+14.46x(r xy =0.773).
出处
《森林病虫通讯》
北大核心
1999年第4期4-7,共4页
Forest Pest and Disease
关键词
林分因子
气候条件
白僵病
松毛虫
stand factors,climatic condition, Dendrolimus punctatus, muscardine
