大气环流指数和湿润系数与林火关系的研究  

Relations between Atmospheric Circulation Index and Wet Coefficient and Forest Fire

作　　者：杨美和[1] 高颖仪[1] 郝广明[2] 

机构地区：[1]吉林林学院资源环境系 [2]吉林林学院科研处

出　　处：《吉林林学院学报》1998年第2期81-85,共5页

基　　金：吉林省科委课题

摘　　要：根据１９５１～１９９６年亚洲地区环流指数和吉林省各地湿润系数同气象火灾的统计分析，得到下列结果：①１月环流指数（Ｉｍ，Ｉｚ）和湿润系数（Ｐ）与我省春季（４月）气候的干湿具有前兆关系，可以用来预测春季森林火灾的数量；②我省年度气象火灾与延吉、吉林、通化３站１月湿润系数存在三元线性回归关系，可以用来预测年度森林火灾；③延边、通化白山两地区，当年春季（４月）林火同前１年５月该地的湿润系数和水热比系数存在二元线性回归关系，可以用来预测该地春季森林火灾频次．According to relations between atmospheric circulation in Asia and wet coefficient in Jilin Province and meteorological fire from 1969 to 1996,the results showed:①Atmospheric circulation ( I m, I z) in January and wet coefficient ( P ) that can forecast numbers of forest fire were premonitory to climate in Spring.②Meteorological fire in Jilin Province and wet coefficient in January in Yanji,Jilin,Tonghua region were ternary linear regression,which can forecast forest fire of the whole year.③In Yanbian,Tonghua,region wet coefficient and hot coefficient of this year(April) and before Year(May) were binary linear regression,which can forecast the frequacies of forest fire in Spring.

关 键 词：大气环流指数 湿润系数 预报因子 林火预报 

分 类 号：S762.1[农业科学—森林保护学]