滇中安宁“3·29”重大森林火灾火烧迹地的可燃物特征初步分析  

Fuel Characteristics in Fire Site of Anning “3·29” Major Forest Fire of Kunming

作　　者：肖慧娟[1] 岳彩荣[1] 袁华[1] 王秋华[2,3] 

机构地区：[1]西南林业大学林学院,云南昆明650224 [2]西南林业大学土木工程学院,云南昆明650224 [3]云南省森林灾害预警与控制重点实验室,云南昆明650224

出　　处：《林业调查规划》2013年第6期72-76,共5页Forest Inventory and Planning

基　　金：云南省教育厅科研项目(2011Y279);云南省应用基础研究计划(2011FZ136)

摘　　要：在滇中安宁"3·29"重大森林火灾火烧迹地选择无人为干扰的灌木林设置样地,并与未过火的灌木林进行比较,通过外业调查和实验室测定,研究了可燃物的种类、高度、绝对含水量、载量等特征。结果表明,火烧迹地死可燃物的高度为5.7 m,与未过火的活灌木高度5.4 m差不多,活灌木平均高度达1.5 m;火烧迹地活灌木、死可燃物、CWD的热值及点着温度与未过火样地的差异均不明显;火烧迹地CWD的灰分含量仅为未过火的25.87%;火烧迹地总的可燃物载量为9.07 kg/m2,明显超过了未过火样地7.82 kg/m2。By selecting little man-made interference shrub field of ＂3 · 29＂ major forest fire burned area in Yunnan Anning as sample plots and compared with unburned shrubs away from the fire sites, the study including fuel types, fuel heights, moisture content, and fuel load has been carried out by investigating and lab experiments. The results showed the height of dead fuel in fire site is 5.7 m ; almost same as that of unburned site, but the average height of the live shrub is 1.5 m. The differences of heat and ignition temperature of live shrubs, dead fuel, CWD in both of burned and unburned area are not significant. Ash content of CWD of fire sits is only 25.87% of that of unburned site. The total fuel load of fire site arrives 9.07 kg/m^2 , exceeds unburned site, which is 7.82 kg/m^2.

关 键 词：森林火灾 火烧迹地 可燃物 灌木 载量 安宁市 

分 类 号：S762[农业科学—森林保护学]