Risk Assessment of Forest Fuels Combustion in the Greater Khingan Range
Assessing the combustion hazard of forest fuels is essential for objectively understanding the risk level of forest fires,which aids in formulating appropriate prevention and suppression measures,thereby providing a decision-making basis for forest fire prevention and emergency management.This study focuses on the Greater Khingan Range in Heilongjiang Prov-ince,utilizing data from 3 300 standard sample plots derived from the'Forest Fire Risk Survey'.Through forest fuel com-bustion experiments,indicators such as potential initial fire intensity,shrub layer continuity,and the density of flammable tree species were categorized into different levels,allowing for the quantification of the combustibility and spatial distribu-tion continuity of forest fuels.This evaluation aimed to determine the potential intensity of forest fires and the types most likely to occur,ultimately assessing the combustion hazard level of forest fuels.The results showed that:(1)the combus-tion hazard levels of forest fuels in the Greater Khingan Range are categorized into four levels:high hazard level,medium-high hazard level,medium-low hazard level,and low hazard level.(2)Within the Greater Khingan Range,from 50°N to 53°30'N,the proportions of high hazard levels for forest fires in standard sample plots increase from low to high latitude as follows:0.02,0.02,0.02,0.05,0.07,0.10,0.08,while the proportions of low hazard levels are as follows:0.50,0.48,0.41,0.36,0.34,0.30,0.29.
Forest fireRisk assessmentForest fire intensitySpeed of forest fire spreadForest fire types
万方数据
维普
