摘要
气候和可燃物是野火事件发生最为重要的影响因素。该文基于中国东北地区2001—2017年17年的MODIS火产品数据以及火季节严重程度数据,通过ArcGIS的核心密度估计函数对东北地区野火火点进行空间分析以及R语言进行其与火季节严重程度的相关分析,对研究区内野火火点密度与野火季节严重程度进行了相关研究。结果表明,野火密度最高的区域位于根河市中部、呼玛县、鄂伦春自治旗、阿荣旗、牙克石市、阿荣旗等区域,且最高密度达到3.94次/km^2;野火火点密度高的区域,其野火季节严重程度也较高,相关系数最高达0.82。
Climate and combustibles are the most important factors which influence wildfire events.Based on the MODIS fire product data and fire seasonal severity rating data from 2001 to 2017 in Northeast China,this paper conducted a related study on the wildfire point density and wildfire seasonal severity rating in the study area.The spatial analysis of wildfire points in Northeast China by the core density estimation function of ArcGIS and the correlation analysis with the fire seasonal severity rating by R are performed.The study found that the areas with the highest wildfire density are located in the central part of Genhe City,Huma County,Elunchun Autonomous Banner,Arong Banner,Yakeshi City,Arong Banner,etc.,and the highest density reaches 3.94 times/km^2.The severity of wildfire seasons in areas with high wildfire firepoint density is also higher,with a correlation coefficient of up to 0.82.
作者
李晓梅
Li Xiaomei(School of Geographical Sciences Northeast Normal University,Changchun 130024,China)
出处
《安徽农学通报》
2020年第13期60-62,116,共4页
Anhui Agricultural Science Bulletin
基金
吉林省自然科学基金:长白山区森林火发生风险的气候驱动机制及其对全球气候变化响应研究,编号:20200201212JC。
关键词
野火
火季节严重程度
东北地区
Wildfire
Fire seasonal severity rating
Northeast China