北华大学学报（自然科学版）2025，Vol.26Issue(3)：297-303,7.DOI:10.11713/j.issn.1009-4822.2025.03.003
长白山风灾区不同恢复区地表细小可燃物热解特征及燃烧性评价
Thermal Decomposition Characteristics and Combustibility Evaluation of Surface Fine Fuel in Different Recovery Zones of Changbai Mountain Wind Disaster Zone
摘要
Abstract
Forest fuel refers to all combustible substances in the forest,and the pyrolysis process of fuel is an important component of combustion process.It has important theoretical guidance significance for forest fire risk assessment,prevention and control,and hazard prediction.Taking the surface fine fuel in different recovery areas of Changbai Mountain wind disaster zone as the research object,through field investigation and indoor experi-ments,based on thermogravimetric analysis,the main surface fine fuel pyrolysis process in different recovery areas of the wind disaster zone is comprehensively grasped,and the pyrolysis parameters of fine fuel are quantified to evaluate their combustibility.The research results indicate that the pyrolysis process of surface fine fuel in different recovery zones of Changbai Mountain wind disaster zone can be divided into dehydration stage,weight loss stage,and carbonization stage.The mass loss rate and weight loss rate of the slash with 1-hour delay are significantly higher than those of herbs and litter.There are significant differences in the pyrolysis parameters of herbaceous fuel in different recovery zones(P＜0.05),while there are no significant differences in the pyrolysis parameters of slash with 1-hour delay(P＞0.05).The flammability of surface fine fuel in different recovery zones,from strong to weak,is as follows:slash with 1-hour delay of original forest reserve zone＞slash with 1-hour delay of the semi-restored zone＞slash with 1-hour delay of the restoration zone＞herbs of the semi-restored zone＞litter of the semi-restored zone＞herbs of the unrecovered zone＞herbs of the restoration zone＞litter of the restoration zones＞herbs of the original forest reserve＞litter of the original forest reserve.Among them,the burning property of slash with 1-hour delay of original forest reserve zone,slash with 1-hour delay of the semi-restored zone,and slash with 1-hour delay of the restoration zone is the strongest.关键词
长白山风灾区/恢复区/热解过程/燃烧性/因子分析Key words
Changbai Mountain wind disaster zone/recovery area/pyrolysis process/combustibility/factor analysis分类
林学引用本文复制引用
于渤,单延龙,冯世龙,陈响,朱宾宾,朱怀远,孙素芹,曹丽丽,于淼欣,谢文君..长白山风灾区不同恢复区地表细小可燃物热解特征及燃烧性评价[J].北华大学学报（自然科学版）,2025,26(3):297-303,7.基金项目
吉林省科学技术厅重点研发项目(20220203189SF) （20220203189SF）
国家自然科学基金项目(32271881) （32271881）
北华大学研究生创新计划项目(2023011). （2023011）
