【摘要】 根据勃利县林业局通天一林场种子园1986～1991年的气象资料，对5、6月的日最高气温与日最低气温的温差和日最大风力的日数进行概率分析。结果表明，我国引发落叶松枯梢病发生的环境条件与日本不同，温差和风力是引发该病的主要诱因。更多还原

【Abstract】 The meteorological materials of Tongtianyi Forest Farm, Boli Forestry Bureau in 1986 ~1991 were Studied. The results indicate that the environment characteristics for the occurence of Larch botryosphearia laricina is different from that of Japan’ s. The main causes of this dis-ease are the range of temperature and wind force.更多还原