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在滇中昆明西山国家森林公园紫茎泽兰连续分布区设置样地,进行外业调查、采集样品,并在实验室测定燃烧性参数,包括活紫茎泽兰(带枝条和叶)、枯死紫茎泽兰和紫茎泽兰凋落物的点着温度、热值、灰分含量等。结果表明:枯死、活紫茎泽兰的载量不到为0.5kg/m2,凋落物的载量为(0.97±0.06)kg/m2,载量不大;枯死和活紫茎泽兰的点着温度分别为(236.7±4.8)℃,(243.4±4.8)℃,凋落物的为(281.7±1.9)℃,点着温度都很低,很容易着火;枯死、活紫茎泽兰的热值为分别为(21 075.2±8 627.2)kJ/kg和(18 527.9±913.7)kJ/kg,凋落物的热值为(16 223.2±1 257.6)kJ/kg,处于较高水平;枯死紫茎泽兰的灰分含量为(9.89±0.33)%,活紫茎泽兰的灰分含量为(4.44±1.01)%,凋落物的灰分含量则高达(17.22±5.93)%。
A sample plot was set up for the continuous distribution of Eupatorium adenophorum in Kunming Xishan National Forest Park in central Yunnan. Samples were collected and the combustibility parameters were measured in the laboratory, including live E. adenophorum (with shoots and leaves) Eupatorium adenophorum and Eupatorium lithe litter point temperature, calorific value, ash content and so on. The results showed that the dead weight of E. adenophorum was less than 0.5kg / m2, litter weight was (0.97 ± 0.06) kg / m2, (236.7 ± 4.8) ℃, (243.4 ± 4.8) ℃ and litter (281.7 ± 1.9) ℃, respectively. The temperature of the litter was very low and it could easily catch fire. The calorific value of Eupatorium adenophorum The litter caloric value was (16 223.2 ± 1 257.6) kJ / kg at high levels of (21 075.2 ± 8 627.2) kJ / kg and (18 527.9 ± 913.7) kJ / kg, respectively) The ash content of blue was (9.89 ± 0.33)%, the ash content of live E. adenophorum was (4.44 ± 1.01)%, and the litter ash content was as high as (17.22 ± 5.93)%.