藤本植物抗火性研究

Study on fire resistance of vine plants

藤本植物是城市森林的主要植物种类之一,选择薜荔、络石、云南黄馨、中华常春藤和湖北羊蹄甲5种藤本植物进行抗火性试验研究,在春、秋、冬三个季节进行理化性状测试、火烧时间和火烧强度试验。以5种藤本植物的含水率、粗脂肪、粗灰分、粗纤维、木质素、燃烧时间、火烧强度作为评价因子,应用灰色关联分析法进行抗火性综合评价,得出中华常春藤是抗火性最强的藤本植物。三个季节的抗火性综合排序是:中华常春藤>薜荔>湖北羊蹄甲>络石>云南黄馨。中华常春藤不但可以作为城市绿化植物,也可作为森林防火隔离带应用推广。

Vine plants are one of the main plant species in urban forest.Ficus pumila,Trachelospermum jasminoides,Jasminum mesnyi,Hedera nepalensis var.sinensis and Bauhinia hupehana were selected to study their fire resistance,which is of great significance to the construction of forest fire prevention isolation zone.The physical and chemical properties tests,burning time and burning intensity tests were carried out in spring,autumn and winter.Taking the moisture content,crude fat,crude ash,crude fiber,lignin,burning time and burning intensity of the five kinds of vine plants as evaluation factors,the paper uses the grey relational analysis method to comprehensively evaluate the fire resistance and concludes that H.nepalensis var.sinensis is the vine with the strongest fire resistance.The comprehensive order of fire resistance in the three seasons is:H.nepalensis var.sinensis>F.pumila>B.hupehana>Tr.jasminoides>J.mesnyi.H.nepalensis var.sinensis can be used not only as an urban greening plant,but also as a forest fire barrier.