The procedure of the analysis is as follows :first,the digital road map was made based on the paper map ofFangshan,southwest Beijing,andthefire distribution map was made byinputingthefire points collected withGPSinto the GIS.

• 首先对房山区的纸质地形图进行扫描,制作房山的道路分布专题图,并将GPS采集的林火火点位置转入ArcView GIS,制作林火火点位置图;