北京市森林可燃物分类研究  

Study on the Fuel Types Classification of Forests in Beijing

作　　者：田晓瑞[1] 戴兴安[2] 王明玉[1] 舒立福[1] 高成德[3] 

机构地区：[1]中国林业科学研究院森林生态环境与保护研究所国家林业局森林保护学重点实验室,北京100091 [2]中南林业科技大学,长沙410004 [3]北京市林业局,北京100029

出　　处：《林业科学》2006年第11期76-80,共5页Scientia Silvae Sinicae

基　　金：北京自然科学基金资助项目(6042025)

摘　　要：利用北京市土地利用图和LandsatTM影像,采用监督分类方法对可燃物进行分类,获得可燃物分类图,并对各类可燃物的特征进行详细描述。结果表明:可燃物可分6类,即O-1草地(中低盖度)、O-2草地(高盖度)、S-1灌丛、S-2幼林、C-1针叶林、M-1针阔混交林和B-1阔叶林。由于TM卫星影像分辨率的限制,很难分别出林分垂直结构的差异。这一分类结果,可以满足森林火险等级预报的需要,但对于火行为预报,还需要根据林分燃烧性、林分垂直结构及可燃物分布状态进一步分类。对当前的可燃物分类方法与制图途径以及未来的发展趋势进行讨论。Fuel type is a basic concept to describe the state of fuel, and it is usually used as a basic input for the fire behavior model of the forest fire danger rating system. The paper uses the land cover map and Landsat TM imagery of Beijing to make the fuel map by using supervised classification. Fuel type maps account for structural characteristics of vegetation related to fire behaviour and fire propagation. The results classify the vegetation into six fuel types： O_ 1 grass, O_ 2 grass （high coverage）, S 1 shrub, S_2 young plantation, C_ 1 conifer forest, M_ 1 mixed wood and B_ 1 broad-leaf forest. Due to the resolution limit of TM imagery, it is difficult to distinguish the forest variety in vertical structure. The results can be used in the forest fire danger rating system, but there is a need for further classification for the fuel with the flammability, vertical structure and distribution in order to make the fire behavior prediction. The paper also discusses the current methods and development of fuel classification and mapping.

关 键 词：可燃物分类 可燃物制图 林火管理 

分 类 号：S762[农业科学—森林保护学]