不同林分类型着火性的研究  

On the Ignition of Different Stand Type

作　　者：杨美和[1] 高颖仪[1] 赵宏伟[2] 

机构地区：[1]吉林林学院森林资源系 [2]吉林省洮南市林业局

出　　处：《吉林林学院学报》1997年第2期70-75,共6页

基　　金：吉林省科学技术委员会课题

摘　　要：根据１９６９～１９９５年吉林省森林火灾个例（２５００个）资料，分不同林分类型，作了日变化、年变化、地区分布和不同疏密度与不同林龄等项的着火频率统计和分析，得出：①各林分着火性的日变化为“单波型”，年变化为“双波型”．②中等疏密度（０．４～０．７）和幼龄林阶段着火频率最大；疏密度在０．７以上和中壮龄林的着火性最差．③东部长白山地区以柞林和阔叶林的着火频率最高；中部以落叶松林的着火频率最大；According to forest fire material of Jilin province from 1969 to 1995,ignition frequency of daily change,annual change,local distribution,different thickness and stand age were calculated for different stand types,the results were:(1)Daily change of every stand ignition was sigle type,annual change was double type.(2)Middle thickness(0.4～0.7) and sapling forest were the highest ignition frequency;Ignition character of thickness above 0.7 and middle forest were the worst.(3)Oak and broad leaved forest in the east of Changbai mountain were the highest ignition frequency;Larch in the middle area were the highest;Broad leaved forest in the west were the highest.

关 键 词：林分着火性 森林防火 影响因子 林分类型 

分 类 号：S762.1[农业科学—森林保护学]