吉林省森林防火期的分析与研究  

Research and Analysis of Forest Fireproof Period in Jilin Province

作　　者：杨美和[1] 高颖仪[1] 

机构地区：[1]吉林林学院森林资源系

出　　处：《吉林林学院学报》1998年第1期11-16,共6页

基　　金：吉林省科委课题

摘　　要：根据１９６９～１９９６年全省森林火灾约３０００个例统计，采用随机变量的积累概率的分位数求值理论，得到下列结果：①不同林分的着火概率和各林分的春秋森林防火期．②不同地区的着火概率和各地区的防火始终期．③环境温度与林分着火的积累概率的关系：在适宜的火环境温度（０～２０℃）下，针阔叶混交林的着火积累概率最低，即抗火性和耐火性最好；含油脂高的针叶混交林和落叶松林的积累概率高，最易着火；阔叶混交林和柞树林居中．④“法定”的春秋防火期的积累概率分布．According to over 3,000 examples of forest fire from 1969 to 1996 in Jilin Province,used fractile evaluation theory of random variable accumulative probability.The results showed:①Fire probability and fireproof period of the different forest stands in Spring and Autumn.②Fire probability and fireproof period in the different regions.③Relationship between environmental temperature and fire accumulative probability of forest stand:fire accumulative probability under 0℃～20℃,coniferbroad mixed forest is the lowest,aceroseleaved mixed forest and larch forest are highest.④Accumulative probability distribution of legal fireproof period in Spring and Autumn.

关 键 词：森林防火期 着火积累概率 林分 

分 类 号：S762.2[农业科学—森林保护学]