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在防火戒严期对昆明地区11种园林木本植物的新叶片和两种对比植物老活叶片进行了垂直燃烧实验,测定了含水率、单位面积质量、燃烧线速率、燃烧面积速率、燃烧质量损失速率、叶脉损毁程度、面积损毁程度、质量损毁程度等因子。结果表明:桂花(Osmanthus fragrans)、腊梅(Chimonanthus praecox)、青榨槭(Acer davidii)、鹅掌楸(Liriodendron chinensis)的燃烧速率和损毁程度较其余几种更强,其余7种植物活叶片差异不大。燃烧速率和损毁程度最弱的为马蹄荷(Exbucklandia populnea)和喜树(Camptotheca acuminata),其中,桂花老叶和腊梅老叶燃烧速率和损毁程度高于新叶。
In the fire precautionary period, 11 kinds of garden woody plants in Kunming area of new leaves and two kinds of contrasting plant live leaves were vertical combustion experiments were measured moisture content, mass per unit area, line rate of combustion, combustion area rate, loss of mass loss Rate, damage of veins, extent of area damage, quality damage and other factors. The results showed that the burning rate and damage degree of Osmanthus fragrans, Chimonanthus praecox, Acer davidii and Liriodendron chinensis were stronger than the others, and the difference of live leaves in the remaining seven species Not big. Exbucklandia populnea and Camptotheca acuminata were the weakest in terms of burning rate and degree of damage, with the burning rate and damage rate of old leaves of old and old leaves being higher than those of new leaves.