摘要
为了解山东省森林火灾发生规律和特征,对1993—2020年火灾数据进行统计,利用Arcgis、Excel等工具对火灾发生的原因、时间和空间分布规律等进行分析。结果显示:共发生森林火灾473次,一般森林火灾占总数的67.65%,较大火灾占31.92%,重大火灾仅占0.42%;随着年份的增加,发生火灾次数呈现出总体增加的趋势,主要是由于祭祀用火、其他非生产性用火、农事用火等人为火引起;在一年当中,春季火灾发生频率最高,春季火灾占总数的68.92%,夏季火灾最少,仅占总数的2.75%;由于人类活动多发生于白天,在一天中,10~18时是火灾的高发期,在这期间曾发生火灾347次,占火灾总数的73.36%,且火灾常发生于可燃物和森林较多的山区。
In order to understand the regularity and characteristics of forest fires in Shandong Province,the fire data from 1993 to 2020 were collected and analyzed by Arcgis,Excel and other tools,including the causes,time and spatial distribution of fires.The results showed that there were 473 forest fires,of which 67.65%were general forest fires,31.92%were large fires,and only 0.42%were major fires;With the increase of the years,the number of fires showed an overall increasing trend,which was mainly caused by human fires such as sacrificial fires,other non-productive fires,and agricultural fires;In a year,the frequency of fire in spring is the highest,accounting for 68.92%of the total,and the least in summer,accounting for only 2.75%of the total;As human activities mostly occur in the daytime,10~18 o'clock is the peak fire occurrence period in a day,during which 347 fires occurred,accounting for 73.36%of the total number of fires,and fires often occur in mountainous areas with more combustible materials and forests.
作者
吕常笑
秦乃花
李萍
崔晓坤
张园利
吴可
LV Chang-xiao;QIN Nai-hua;LI Ping;CUI Xiao-kun;ZHANG Yuan-li;WU Ke(Shandong Territorial Spatial Planning Institute,Jinan 250014,Shandong,P.R.China;Jinan Xinlvhao Co.,Ltd.,Jinan 250014,Shandong,P.R.China)
出处
《森林防火》
2023年第2期1-6,共6页
JOURNAL OF WILDLAND FIRE SCIENCE
基金
中央级公益性科研院所基金项目(CAFYBB2018GD001)。
关键词
森林火灾
年际变化
季节变化
空间分布
Forest fires
Interannual variation
Seasonal changes
Spatial distribution
