吉林省重特大森林火灾与气象因子的关系研究

Relationship of Particularly Serious Forest Fires and Meteorological Factors in Jilin Province

摘要: 通过搜集吉林省1969—1980年间的全部森林火灾资料，建立Excel资料库；根据受害森林面积来划分重特大森林火灾，对吉林省重特大森林火灾与气象因子的关系进行了研究。结果表明：吉林省引起重特大森林火灾的风向主要为西风和偏西风，尤其是西南风和西北风；风速在3~5级容易发生重特大森林火灾，4级时发生重特大森林火灾次数和面积均为最大；当温度在16~20℃发生重特大森林火灾次数和面积均最大。

Abstract: We have collected all forest fire data from 1969 to 1980 in Jilin Province, established an Excel database, Particularly serious forest fires are classified according to the damaged forest area, and the relationship between the particularly serious forest fires and meteorological factors in Jilin Province was studied. The results demonstrated that the wind directions which caused the particularly serious forest fires in Jilin Province were mainly west wind and westerly wind, especially southwest wind and northwest wind. The wind speed of 3-5 level was apt to occurrence of particularly serious forest fires. The number and area of particularly serious forest fires were the largest when wind speed was 4 level, and the temperature was 16-20℃.