生态学杂志2025，Vol.44Issue(3)：780-789,10.DOI:10.13292/j.1000-4890.202503.023
广州城市森林主要林型可燃物空间分布与燃烧性等级
Spatial distribution and combustibility of fuels of main forest types in Guangzhou City
摘要
Abstract
The spatial distribution and combustibility of forest fuels are decisive for the occurrence and spread of forest fires.In this study,stand structure characteristics and fuel spatial distribution in 16 forest stands from Guang-zhou City were obtained by terrestrial laser scanning.The surface fuel load was measured by ground measurement and standard sampling methods.Leaves of dominant tree species in different stands were collected to measure physi-cochemical properties.One-way ANOVA was used to compare the spatial distribution of fuels and the differences in the physicochemical properties of leaves of dominant tree species among different stands,to analyze the potential fire behaviors and fire dangers.The comprehensive scores of combustibility of different stands were calculated by principal component analysis(PCA),while the fire risk grading was classified by cluster analysis.The results showed that there were significant differences in spatial distribution of fuels and the physicochemical properties of leaves of dominant tree species among 16 forest stands.The 16 forest stands could be classified into four fire danger grades based on combustibility:(1)Pinus massoniana forest and Cunninghamia lanceolata forest had the very high fire risk;(2)pine and broadleaved mixed forest,Cunninghamia lanceolata and broadleaved mixed forest,Castan-opsis chinensis forest,Eucalyptus forest,and Acacia confusa forest had high fire risk;(3)Schima superba forest had the moderate fire risk;(4)broadleaved mixed forest,Castanopsis fissa forest,Acacia auriculiformis forest,Casta-nea henryi forest,Elaeocarpus apiculatus forest,Machilus chinensis forest,Schefflera octophylla forest,and Liqui-dambar formosana forest had low fire risk.According to the combustibility and fire risk grade of different stands,the corresponding fuel management measures and forest fire prevention countermeasures were proposed,which would provide theoretical support and scientific guidance for the deployment of forest fire prevention resources and the con-struction of fire prevention forest belt in Guangzhou.关键词
可燃物载量/燃烧性/林火行为/森林火险等级/地基激光雷达Key words
fuel load/combustibility/forest fire behavior/forest fire risk/terrestrial laser scanning引用本文复制引用
王庆飞,郝泽周,李乐,高丙涛,王圣洁,洪维,庄晓纯,李嘉睿,裴男才..广州城市森林主要林型可燃物空间分布与燃烧性等级[J].生态学杂志,2025,44(3):780-789,10.基金项目
中国林科院基本科研业务费专项资金项目(CAFYBB2023MB017)、广州市基础研究计划基础与应用研究项目(2024A04J3878)和生态环境部华南环境科学研究所科技成果转化项目(RITFHZXY2024-24)资助. （CAFYBB2023MB017）
