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/m2 , exceeds unburned site , which is 7.82 kg/m2 .
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