八种观赏植物的树皮抗火性研究

Study on Bark Fire Resistance of Eight Ornamental Plants

以江西农业大学校园内常见的8种观赏植物桂花、日本晚樱、紫花含笑、夹竹桃、二乔玉兰、石榴、山茶和紫薇为研究对象,对其树皮的耐火性进行综合评价。应用加权平均法,选择不同树种树皮的绝对含水率、饱和含水率、失水率、热辐射作用下树皮的内表面温度和质量剩余率5项指标作为评价因素,对8种常见观赏植物的抗火性进行了综合评价。结果表明:抗火性最强的树种为二乔玉兰、紫薇;一般的为紫花含笑、桂花、山茶;较差的为日本晚樱、夹竹桃、石榴。指出了观赏植物树皮抗火性能存在一定差异,研究观赏植物抗火性可为其栽植及管理提供一定参考依据。

The bark fire resistance of 8 kinds of common ornamental plants which is growing in Jiangxi Agricultural University Campus,namely Osmanthus fragrans,Cerasus seerulata,Michelia crassipes,Nerium indicum,Magnolia soulangeana,Punica granatum,Camellia japonica and Lagerstroemia indica,are comprehensively evaluated.The fire resistance of 8 common ornamental plants was evaluated by using weighted average method,which included absolute water content,saturated water content,water loss rate,inner surface temperature and mass residual rate of bark of different tree species.The results show that the strongest of fire resistance tree species is Magnolia soulangeana Soul and Lagerstroemia indica;The general is for Michelia crassipes,Osmanthus fragrans and Camellia japonicaLinn;The weaker is Puica granatum,Nerium indicum and Cerasus seerulata.It points out that there are some differences in the fire resistance of ornamental plant bark.The study on fire resistance of ornamental plants can provide some reference for its planting and management.