四川省常见树种防火期凋落物燃烧性分析  

Analysis of Litter Flammability of Common Tree Species During the Fire Prevention Period in Sichuan Province

作　　者：钟金 朱宇颐 覃方兴 何晓成 阮若玉 贾娟 崔兴雷 Zhong Jin;Zhu Yuyi;Qin Fangxing;He Xiaocheng;Ruan Ruoyu;Jia Juan;Cui Xinglei(Sichuan Forestry and Grassland Survey and Planning Institute,Chengdu 610081,China;Longmen Mountain Biodiversity Protection Provincial Long-term Scientific Research Base,Chengdu 610081,China;Sichuan Provincial Forest and Grassland Fire Prevention Monitoring Center,Chengdu 610081,China;National Forestry and Grassland Administration Engineering Research Centre for Southwest Forest and Grassland Fire Ecological Prevention,College of Forestry,Sichuan Agricultural University,Chengdu 625014,China)

机构地区：[1]四川省林业和草原调查规划院,四川成都610081 [2]龙门山生物多样性保护省级长期科研基地,四川成都610081 [3]四川省森林和草原防火监测中心,四川成都610081 [4]四川农业大学林学院,国家林业草原西南森林与草原生态防火工程技术研究中心,四川成都625014

出　　处：《防护林科技》2024年第3期50-55,共6页Protection Forest Science and Technology

摘　　要：为防火树种的选择提供理论依据,搜集四川省59种常见树种防火期的凋落物,对凋落物的载量、含水率、粗脂肪含量、燃点、热值、灰分进行测定,使用主成分分析评价不同树种凋落物的燃烧性。结果表明:不同树种凋落物载量和含水率差异显著。凋落物燃烧性较高的树种有高山松、柏木等;燃烧性较低的有黄葛树、杧果等。凋落物燃烧性低的树种可选为潜在防火树种。To provide a theoretical basis for selecting fire-resistant tree species,litter samples were collected from 59 common tree species during the fire prevention period in Sichuan Province,and the litter load,moisture content,crude fat content,ignition point,heat value,and ash content were determined.Principal component analysis was used to evaluate the flammability of litter from different species.The results showed as follows:the litter load of different tree species was siqnificantly different,and the litter moisture content of different tree species was significantly different.The tree species with higher litter flammability included Pinus densata,Cupressus funebris,and so on;the tree species with lower litter flammability included Ficus virens,Mangifera indica,and so on.Species with low litter flammability could be selected as potential fire-resistant tree species.

关 键 词：四川 燃烧性 凋落物 主成分分析 防火树种 

分 类 号：S762.1[农业科学—森林保护学]