大兴安岭主要树种枯落物燃点、热值实验分析

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中图分类号：S762.2;S705 文献标识码：A 文章编号：1001-9499（2025）03-0059-04

AbstractExperimental analysis of the Ignition Point， Calorific Value，and diferences of liter under diferent tree speciescan help objectively understand its impact on forest combustibility，and provide reference for Forest Fire risk assessment and Forest Fire behavior research.In this paper，the litter of main tree species in Daxing'anling Forest Region of Heilongjiang Province was taken as the research object， and a large number of liter samples covering the area were obtained.The Ignition Point and Calorific Value of the upper and lower liter layers were measured，and the sample mean value was representative. The Paired Sample T-test and Analysis of Variance were used to test the significant difference of Ignition Point and Calorific Value of the samples.The results showed that there were significant diferences in the Ignition Point and Calorific Value of the upper and lower liter layers of the same tree species，but there were no significant differences in the Ignition Point and Calorific Value of the under forest liter between different tree species except Pinus sylvestris var. mongolica.

Key wordsforest fire prevention; forest fuel; types of combustibles; ignition point; calorific value

森林火灾是破坏森林环境的主要自然灾害之一，森林可燃物是森林燃烧的物质基础，其理化性质关系到森林的燃烧性，是分析森林能否被引燃，如何蔓延以及火行为过程的重要因素[1]，一直以来受到森林防火行业学者的关注[2-5]。（剩余3592字）