摘要
以贵州省毕节市赫章县2021年3月18日较大森林火灾为例,利用火灾前后Landsat 8遥感数据及ENVI遥感数据处理分析软件,通过图像预处理、计算归一化植被指数和燃烧面积指数等方法,提取森林火灾过火区域,计算过火面积。结果表明,利用Landsat 8数据能够较好地提取森林火灾过火区域,过火面积估算准确率达96.2%。
Taking the forest fire in Hezhang County,Bijie City,Guizhou Province on March 18,2021 as an example,this paper used Landsat 8 remote sensing data,and remote sensing data processing and analysis software(ENVI),to extract and calculate the burned area based on image preprocessing,calculation of normalized vegetation index and burned area index.The results showed that the burned area of forest fire could be extracted well by using Landsat 8 data,and the accuracy of burned area was 96.2%.
作者
董奎
董平
陈兰
DONG Kui;DONG Ping;CHEN Lan(Bijie Center of Natural Forest Resources Protection,Bijie,Guizhou 551700,China;Sichuan Shanhaitu Agriculture and Forestry Technology Co.,Ltd.,Chengdu 610081,China;Bijie Institute of Forestry Inventory and Planning,Bijie,Guizhou 551700,China)
出处
《林业调查规划》
2024年第1期187-191,共5页
Forest Inventory and Planning
