北京地区主要树种理化性质研究及易燃性初步分析

森林燃烧所释放的热量、火种类、火行为等各种林火属性与树种易燃性密切相关,而树种的理化性质在一定程度上制约着易燃性,因此对树种理化性质和易燃性的研究是必要的。基于20种树种的实验分析,确定了可燃物热值、抽提物含量、灰分含量、含水量、密度的相关性,并建立相应的回归模型;基于树种理化性质的分析,比较了20种树种的易燃性,进行排序并划分等级。

The Preliminary Analysis of the Characteristics and Flammability of Main Tree Species in Beijing Area

The forest fire characters,such as the effective heat of combustion,fire kinds and fire behaviors,have the correlativity with flammability,but the physical and chemical properties are the deciding factors of flammability.So it is ncessary to study the physical and chemical properties and flammability of trees.Based on the experiments and analysis of 20 tree species,the paper quantified the correlation among the characteristics of tree species,such as the heat of combustion,extractive content,ash content,moisture content and specific density,and established the regressive models.According to the analysis of tree characteristics,the flammability of 20 tree species is compared,put in order and ranked.