近20年四川省森林火灾时空动态变化及火源分析  

Temporal and Spatial Characteristics of Forest Fires and Fire Source in Sichuan Province in the Past 20 Years

作　　者：李娜娜[1] 王甜 周楷玲 邹秤 潘立 李月波 曹令媛 严刚 LI Na-na;WANG Tian;ZHOU Kai-ling;ZOU Cheng;PAN Li;LI Yue-bo;CAO Ling-yuan;YAN Gang(Sichuan Forestry Survey,Design and Research Institute Co.,Ltd.,Chengdu 610000,Sichuan,P.R.China;Sichuan Forest and Grassland Fire Monitoring Center,Chengdu 610000,Sichuan,P.R.China)

机构地区：[1]四川省林业勘察设计研究院有限公司,四川成都610000 [2]四川省森林和草原防火监测中心,四川成都610000

出　　处：《森林防火》2025年第1期15-20,共6页JOURNAL OF WILDLAND FIRE SCIENCE

基　　金：省级财政林业草原改革发展资金防火课题研究“四川森林火灾灾损林地植被恢复技术研究项目”。

摘　　要：基于MODIS数据,结合历史火灾记录资料、林地等数据,对四川省森林火灾的时空动态变化规律进行研究。结果表明:2003—2022年,四川省过火林地面积呈先增加后减少趋势,林火次数呈现减少趋势。近20年间,四川省林火空间分布总体上由分散趋于聚集,集中于川南的攀枝花市和凉山州。四川省森林火灾主要由烧荒烧炭、小孩玩火和野外吸烟等人为因素引起,占比89.0%。Based on MODIS data,combined with historical fire records and forest area data,the temporal and spatial dynamic changes of forest fires in Sichuan Province were studied.The results showed that from 2003 to 2022,the area of burned forest area and the number of forest fires in Sichuan Province increased first and then decreased,and the number of forest fires showed a decreasing trend.In the past 20 years,the spatial distribution of forest fires has generally tended to gather from dispersion,concentrated in Panzhihua City and Liangshan Prefecture in southern Sichuan.Forest fires in the province are mainly caused by human factors such as burning charcoal,children playing with fire and smoking in the field,accounting for 89.0%.

关 键 词：森林火灾 过火林地 时空分布 火源 四川 

分 类 号：S762[农业科学—森林保护学]