摘要
本文主要以AQUA MODIS卫星遥感影像为主要数据源,应用地理信息数据分析技术对黑龙江省2002~2017年草原火发生时间和空间变化进行分析,结果表明:从季节尺度变化分析,春季是黑龙江省草原火的高发期,过火面积最大,变化范围为105.00~30130.25 km2,秋季次之,夏季草原过火面积较春季和秋季都小,变化范围为17.00~1744.75 km2;全省年际草原火面积平均为(9374.17±9812.97)km2,变化范围为1603.25~33515.75 km2,存在极显著增加趋势;从空间分布可见,春季、夏季和秋季火点集中分布区域均在松嫩平原草原区齐齐哈尔和大庆。
In this paper,AQUA MODIS satellite remote sensing image was used as the main data source,and geographic information data analysis technology was used to analyze the temporal and spatial changes of grassland fire occurrence in Heilongjiang Province from 2002 to 2017.The results showed that:from the analysis of seasonal scale variation,spring was the most frequent period of grassland fire in Heilongjiang Province,with the largest burning area in the range of 105.00-30130.25 km2,followed by autumn.Summer grassland fire area was smaller than spring and autumn,with the range of 17.00-1744.75 km2.The average annual grassland fire area of the whole province was 9374.17±9812.97 km2,and the variation range was 1603.25-33515.75 km2 with an extremely significant increasing trend.It could be seen from the spatial distribution that the concentrated distribution areas of fire points in spring,summer and autumn were Qiqihar and Daqing in Songnen plain.
作者
魏云敏
孙家宝
袁强
WEI Yunmin;SUN Jiabao;YUAN Qiang(Heilongjiang Forest Protection Institue,Heilongjiang Harbin 150081)
出处
《林业科技》
2023年第4期50-54,共5页
Forestry Science & Technology
基金
黑龙江省财政项目“可燃物调控方式对土壤理化性质的影响研究”
黑龙江省财政项目“黑龙江省草原火时空分布格局、影响因素及防控对策研究”
国家青年基金项目31700574资助。
关键词
遥感影像
草原火
时空分布
Heilongjiang province
grassland fire
temporal and spatial distribution
